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Proctor Level2_100

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536 Questions
85 Sets
0 Topics
2 Reviews
Tips for this examiner: do all the questions in the sheet for th same proctor and have thorough knowledge of your code.

Student reviews

Tushar Bharti MAD1

Shared viva questions from response sheet: Basis overview is like he will ask questions related to vue and backend , though questions are same as he asked above but still I am writing.; What is Props , Slot, How to pass data from child to parent; What is Vue Cli and vue cdn and what you have used.

Questions remembered
  1. Basis overview is like he will ask questions related to vue and backend , though questions are same as he asked above but still I am writing.
  2. What is Props , Slot, How to pass data from child to parent
  3. What is Vue Cli and vue cdn and what you have used.
  4. What is Webhooks??
  5. What is Sqlalchemy??
  6. What is Difference between v-model and v-bind?
  7. What is V-if and V-show?
  8. What is lifecycle in vue js and explain them??
  9. What have you used for security purpose?? Flask Security or JWT??
  10. He will ask for showing celery work.
  11. He will ask a change in code type of questions and that he will ask randomly so you can't predict that (I was not able to do so I told sorry sir , I am not able to figure it out), So you can do the same if needed 😀. Basically prepare all the questions from his side in this sheet you are good to go as he focuses majorly on vue js and backend. Overall Chill Proctor 😄😃 I will update my grade after I will get the results as how he penalize me for not solving code change question
Bharat MAD1

Shared viva questions from response sheet: What is Vue?; Are you using CLI or CDN?; What are webhooks?

Questions remembered
  1. What is Vue?
  2. Are you using CLI or CDN?
  3. What are webhooks?
  4. What is ORM and are you using it?
  5. What is ORM's advantage?
  6. What are Vue lifecycle hooks?
  7. What is difference between v-if and v-show?
  8. Changed the code - Add table to one page instead of Card view. Debugged the model.

Approved viva sets

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See reviews Level2_100 MAD2 Level 2
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  1. 1
    Theory ques-
    Times asked 2
  2. 2
    How is Vue.js different from Angular and React
    Times asked 2
  3. 3
    Few other questions i don't remember
    Times asked 2
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  1. 1
    Verified ID card.
    Times asked 2
  2. 2
    Coding Question: Implement the restriction so that a student who is already placed cannot apply to any other placement drive. He wanted to see the change working.
    Times asked 1
  3. 3
    (I think he asked one more question, but cant remember it, but it wasn't out of the sheet)
    Times asked 2
  4. 4
    The proctor was very calm and patient throughout the interview, he was silent throughout the demo. He did not ask anything outside the commonly shared question sheet. The coding question was also the same placement restriction that many previous students had reported.
    Times asked 2
Advice: Prepare the theory questions from the response sheet thoroughly—they are more than enough. Know your project flow and be able to explain your code confidently. The proctor is friendly and does not try to confuse students.
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  1. 1
    POD: L2_100
    Times asked 2
  2. 2
    * What is the difference between Optional Chaining and the Nullish Coalescing Operator?
    Times asked 2
  3. 3
    * Coding Question: Write the code to ensure that a student can apply to a maximum of two drives.
    Times asked 2
  4. 4
    * Coding Question: Write the code so that a placed student cannot apply for any new drives.
    Times asked 1
  5. 5
    * Coding Question: Write the code to prevent a new student from applying to a new drive under the given condition.
    Times asked 2
  6. 6
    * Explain all the background tasks implemented in your project, including the reminder email task and the monthly report task.
    Times asked 2
Advice: The examiner was very chill, friendly, and cooperative throughout the viva
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  1. 1
    Show demo [ dwnlded from the portal. Setup the celery timing to next 5mins and ranthe app] He was really silent, I calmly created a venv installed the requiremnts and changed the celery time, then ran. He didn't ask anything, I kept explaining my app [ gone through each feature ] - didn't even know if he was listening, after showing wevrythins I aksed "that si sir any feature to be shoen next?" no reply "Hello sir?" and then he replied "yeah okay"
    Times asked 2
  2. 2
    "show me the generated reports in mail". Only admin was generated,(since the suer boooking was done after the set 5 mins the mail was not received] I explained that and showed the previsously geenrated report. He said that's okay good.
    Times asked 2
  3. 3
    Go to admin dashboard
    Times asked 2
  4. 4
    [ asked the same code from the sheet] trekking app - Whenever the user books it should be in "pending" and admin should approve the booking , then only it should show booked.
    Times asked 2
  5. 5
    Implemeted it and showed him, said "good"
    Times asked 2
  6. 6
    Theory questions followed next
    Times asked 2
  7. 7
    Authentication vs Authorization?
    Times asked 1
  8. 8
    Compositiona dn potions API
    Times asked 1
Advice: He's silent, doesn't try to ask any cross questions, just the one from the sheet. A good one
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  1. 1
    The interview lasted around 40 minutes.
    Times asked 2
  2. 2
    The interviewer had his camera on throughout the meeting.
    Times asked 2
  3. 3
    He looked Tamil Black Guy.
    Times asked 2
  4. 4
    He was kind and mostly quiet during the session.
    Times asked 2
  5. 5
    For the first 10 minutes, I gave a demo of the project. At one point, I asked, "Hello? Hello?" to make sure he was still there, and he replied, "Yeah, okay, good." After the demo, he asked me to make a code change.
    Times asked 1
  6. 6
    Task 1
    Times asked 2
  7. 7
    He asked me to implement the following rule:
    Times asked 2
  8. 8
    «Once a student is placed, the student should not be able to apply to any other placement drive.»
    Times asked 2
  9. 9
    I completed this change in about 5 minutes. It only required a couple of lines of code.
    Times asked 2
  10. 10
    Task 2
    Times asked 1
  11. 11
    He then gave me another requirement:
    Times asked 2
  12. 12
    «A student can apply to a maximum of 2 drives and can receive placements from a maximum of 2 companies, but no more than that.»
    Times asked 2
  13. 13
    I implemented the logic, but after making the changes, the API started throwing an error. The interviewer smiled and said:
    Times asked 2
  14. 14
    «"You did the last change in 2 minutes, and now you can't do this simple extra change?"»
    Times asked 2
  15. 15
    I tried to explain my approach and the logic I had implemented, but the API issue remained unresolved during the interview.
    Times asked 2
  16. 16
    Technical Questions
    Times asked 2
  17. 17
    After the coding tasks, he asked me a few conceptual questions:
    Times asked 2
Advice: Most of the call was silent, He also came late. And the theory qns are always always repeated The same 4-5 qns everytime Code qns just ask the previous person who have viva on the same day. Mostly same code qn And take time to code Or else he will give another code qn I prepared only for 1 hr And project was made by claude. Best of luck
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  1. 1
    What type of Vue you use in your code
    Times asked 1
  2. 2
    Explain lifecycle
    Times asked 2
  3. 3
    How they communicate ( question was like that but I forgot exactly what it was )
    Times asked 2
  4. 4
    A term which I never heard so I dont remember
    Times asked 2
  5. 5
    Some follow up questions.
    Times asked 2
Advice: He is good.
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  1. 1
    download the repo and start demo- i 1st showed the app and went to vs code and kept showing all code-showed him all functionality- all the restrictions as required by rubrics 3)coding question - asked me to disable a student applying for another job if he is already placed-got stuck patiently waited for me to complete -he will also want ot see it working- so ensure the code works
    Times asked 2
  2. 2
    what securities have you used -what's the difference between session cookies and jwt
    Times asked 1
  3. 3
    show me the reports generated from the app- i had the monthly report and reminder for interview and offer letter
    Times asked 2
  4. 4
    different status of vue- before mounted ,mounted etc..
    Times asked 2
Advice: he has the above fixed question paper as i have seen in the past as well. Ensure you don't have the feature enable so that you can prepare this question and enable it in front of him. very cool. All the best!!
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  1. 1
    Exactly same theory questions which have been mentioned in the sheet. Same HMS project coding questions -> how a patient can book appointments with different doctors on same date and slot. I had practiced that question before viva so i easily implemented.
    Times asked 2
Advice: Practice all theory questions which have been mentioned in the sheet bz they will ask you a lot theory question and for coding you will be luck if someone has given viva with that proctor before you on some project statement , just see what he has been asking coding question for your project and try to implement in you project before viva start. All the best, don't warry proctor is very chill guy.
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  1. 1
    What are lifecyclehooks
    Times asked 2
  2. 2
    What security are you using ( JWT )
    Times asked 1
  3. 3
    Why are you using JWT and not SessionStorage ( Flask )
    Times asked 2
  4. 4
    How is data sent from parents to child and vice versa in Vue ( Props , Emits , Slots )
    Times asked 1
  5. 5
    Can an accepted student apply in another company ? if yes make it so that he can't ( I made it so the student can't see any drives after being accepted)
    Times asked 2
  6. 6
    Make the accepted student be able to see the drives but not apply . ( Stopped me midway after I explained the solution did not need to code the answer )
    Times asked 2
Advice: Every single question he asks is in the sheet.
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  1. 1
    -First show demo
    Times asked 2
  2. 2
    -coding qn: currently if a student got placed that student can still apply for other drives, sir asked me to change the code such that a student who got placed cannot apply for other drives.
    Times asked 2
  3. 3
    -cdn cs cli
    Times asked 1
  4. 4
    -how is communication happening btw vue components
    Times asked 2
  5. 5
    and two more i don't remember. But don't worry very nice proctor, he will guide you through everything and is very calm.
    Times asked 2
Advice: You are in safe hands if you got him (be prepared tho). First of all he enabled his video which did put my mind at ease for some reason since I could see him as well. When the viva started I was very tensed but as it proceeded I found myself to be very calm because of him. Best examiner I got so far tbh
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  1. 1
    id check
    Times asked 3
  2. 2
    coding ques - prevent student from applying to multiple drives
    Times asked 2
  3. 3
    whtat security u are using (jwt)
    Times asked 2
  4. 4
    Pinia and vuex
    Times asked 1
  5. 5
    how component interact with each other (they dont in my app so i explained him how )
    Times asked 2
  6. 6
    pretty chill proctor , just practice through the sheet
    Times asked 2
Advice: Just prepare from the sheet and don't worry ,you will do great <3
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  1. 1
    implement the functionality such that patient cannot book two or more appointments at same time
    Times asked 2
Advice: Prepare the theoretical question as they are same and coding question depends on any missing functionality implementation or anything he find is not valid so could ask to change
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  1. 1
    Level2_100:
    Times asked 2
  2. 2
    Run demo of app
    Times asked 1
  3. 3
    He interrupted the demo and asked to create appointment by same patient for two different doctor on same day and same slot. He wants to see if it was allowed or not. I said that it's allowed . So he asked me to apply the restrictions so a patient can't do it.
    Times asked 2
  4. 4
    Asked me to show all jobs. But completed viva after seeing just one job.
    Times asked 2
Advice: Chill examiner.
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  1. 1
    add new functionality in dashboard if student can accept or reject offers(agr multiple offers milgye to)
    Times asked 2
  2. 2
    authentication used
    Times asked 2
  3. 3
    celery, redis,caching
    Times asked 1
  4. 4
    then asked me about my degree and how this degree aids me in that , celery partially work krra tha to uspe kuch sawal,phir pucha jo chize shi se nhi kri hai vo kyu nhi kri time nhi tha ya bhulgye ya miss hogyaa
    Times asked 2
Advice: chill hai bs be thorough about your code
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  1. 1
    - show me the complete demo ( register a company, approve by admin, create a student, cretae a drive, make student apply, make him selected show everything)
    Times asked 2
  2. 2
    - adviced that it would be more efficient if a student selected in any drive won't be able to apply in any other drive ( my app was not having this feature)
    Times asked 2
  3. 3
    - asked me to implement this advice
    Times asked 1
  4. 4
    - version of vue, vuex, pinia what they are why am i using what i am using
    Times asked 1
Advice: be relaxed he won't eat you, pretty chill proctor, will even advice you and might even end the level2 viva in 30 mins and still pass you
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  1. 1
    Show id card , download app from portal and run demo
    Times asked 2
  2. 2
    Implement admin activate doctor route
    Times asked 2
  3. 3
    Implement patient can't book slot with another doctor in same time. When he is already book different doctor at same time .
    Times asked 2
  4. 4
    What library you used in making backend.
    Times asked 2
  5. 5
    What is SQL alchemy
    Times asked 1
  6. 6
    How data is pass through parent to child
    Times asked 1
  7. 7
    What is props and emits .
    Times asked 2
  8. 8
    What extra things you do other than this degree . If nothing then explore it .
    Times asked 2
Advice: Very nice proctor 💯
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  1. 1
    LEVEL 2
    Times asked 3
  2. 2
    - Purpose of lifecycle hooks
    Times asked 1
  3. 3
    - Advantage lifecycle hooks for the user
    Times asked 1
  4. 4
    - which security was used
    Times asked 2
  5. 5
    - how is JWT different from session based management, which is better
    Times asked 2
  6. 6
    - Which state management have you used (pinia)
    Times asked 1
  7. 7
    - Which is the older version of the state management, in which version is pinia being used
    Times asked 2
  8. 8
    - asked for demo of the project, all the celery jobs
    Times asked 2
  9. 9
    - there was an issue with drive creation where company could create drive for past dates. so that became my coding question - implement the current or future date drive creation
    Times asked 2
Advice: very easy going proctor, he is more frontend focused, also theory focused so be prepared for it. He will give honest suggestions and constructive feedback, so make sure to ask your performance in the end
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  1. 1
    Vue 3 updates / patches from vue 2
    Times asked 2
  2. 2
    And some questions about new things in vue 3 some stream thingy and tree
    Times asked 2
  3. 3
    I don't remember if he asked more
    Times asked 1
Advice: Chill guy but the questions he asked weren't in the sheet so wasn't able to prep for them and they were very odd ones this is updated feedback
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  1. 1
    Implement functionality such that the user can't book same parking lot if he has an already active booking
    Times asked 2
  2. 2
    What r the patches from vue 2 to 3
    Times asked 1
  3. 3
    Vue memo
    Times asked 2
  4. 4
    Tree smth idr
    Times asked 2
  5. 5
    That's all I remember ig 1 2 more he had asked
    Times asked 2
Advice: He's pretty chill ig he was in call in bw but I didn't expect these questions coz it wasn't there in the sheets looks like he got a new set of questions be confident and stay truthful about ur implementation but not too honest atb
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  1. 1
    << Level2 Viva
    Times asked 2
  2. 2
    - Vuex (I had used pinia for state management)
    Times asked 2
  3. 3
    then some other theory question
    Times asked 2
  4. 4
    -- Code Changes
    Times asked 2
  5. 5
    - Make the parking lot name case sensitive so it given an error (Like python treats uppercase and lowercase different like IITM and iitm is different but the name is same, so I implemented that.)
    Times asked 2
Advice: Chill proctor, theory should be good, go through your code thoroughly.
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  1. 1
    types of data binding
    Times asked 2
  2. 2
    how to pass data from one component to another
    Times asked 2
  3. 3
    make an edit such that two lots cannot have the same name (case insensitive)
    Times asked 2
Advice: good and patient proctor. viva lasted for 30 minutes.
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  1. 1
    - Verify Student id - Show the demo - Show backend Jobs - Qustions
    Times asked 2
  2. 2
    Show models I was already having unique constraint in my Student model so he asked me if uniques means case sensitivity or not then if user enter for eg Mad 1 and then mad 1, it should raise the error .
    Times asked 2
Advice: One thing i understood about this proctor that, he is straight forward and he almost has a fix set of questions to ask as mentioned under his response sheet. No follow up questions asked and if one questions gets over he'll have another question ready in almost same order as mentioned by other the students. so i was not able to change the code, i tried some logic here and there, almost got the output correct but it was not correct. So he just asked me to leave it and dont take stress. then he was telling his was of evaluation. so basically he wants to check if the student has completed or knows overall thing of an application, and not just completing the requirements. many students just complete the requirements, but the aim of these projects are to make us industry ready. (but tbh since i am doing dual degree, i wont invest much of my time creating basic crud app, because my logic is already good, anyways hope this review is helpful for other students)
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  1. 1
    first he started with my introduction
    Times asked 2
  2. 2
    then here told me to demonstrate core functionalityies he even saw my backed jobs as well
    Times asked 2
  3. 3
    he asked my whats vue.js
    Times asked 2
  4. 4
    whats difference in cdn cli vue
    Times asked 2
  5. 5
    whats data binding
    Times asked 2
  6. 6
    how you can pass data from components
    Times asked 2
  7. 7
    sql aggregate function
    Times asked 2
  8. 8
    difference in 1-way and 2-way binding
    Times asked 2
  9. 9
    lifecycle of vue js
    Times asked 2
  10. 10
    and a simple change in code( my quiz score section didn't has Quiz Name Column he asked me to add it )
    Times asked 2
Advice: its was a good viva, just follow the all sheets question and you are good to go
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  1. 1
    Basic introduction
    Times asked 1
  2. 2
    after complete demonstration, he asked me about Vue.js
    Times asked 2
  3. 3
    Props, slot and emits and the other questions that are mentioned there this sheet.
    Times asked 2
  4. 4
    asked me to change in the code so that a sponsor can't create another campaign with the same name. He helped me in doing this when I was facing problems.
    Times asked 2
Advice: Very good proctor that everyone would like him. Very polite and supportive as well as professional. Just prepare from this sheet and you will be all set to go. A perfect experience at the end of Web development project 😊
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  1. 1
    CLI (also CDN vs CLI)
    Times asked 1
  2. 2
    Vuex - I somewhat struggled in this part, but he was chill about.
    Times asked 2
  3. 3
    Webhooks - this also I struggle to exact my explanation - he was chill.
    Times asked 1
Advice: He is chill, nothing to worry about. Other students who had the same proctor also said the same. Just study about everything about your project, and the questions I and other students mentioned in this sheet, then viola, you aced.
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  1. 1
    Demo of your project
    Times asked 1
  2. 2
    What is Vuejs
    Times asked 1
  3. 3
    How binding works in Vue
    Times asked 2
  4. 4
    Show the celery part
    Times asked 1
  5. 5
    Coding Question - How the customer is able to book a service on the same date, so he asked to implement this. The customer should not be able to book a service on the same date as the date of request, and for the same service as well.
    Times asked 2
Advice: All questions were from the sheet only. Study all the questions asked by the proctor.
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  1. 1
    greetings & identification formalities Complete Demonstration
    Times asked 2
  2. 2
    what are api, HTTP verbs
    Times asked 1
  3. 3
    v-directives and binding in VUE
    Times asked 2
  4. 4
    CLI vs CDN (definition and why did u use it?)
    Times asked 2
  5. 5
    Coding Challenge: for any given sponsor "campaign name" shouldnt be same.
    Times asked 2
Advice: Keep calm, and study from the sheet
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  1. 1
    Give Demo
    Times asked 4
  2. 2
    Told me to show add one more same service category which I added in the past. But my system added the same service so he told me that same service category should not be duplicated.
    Times asked 2
Advice: He is very chill but he can ask you more questions
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  1. 1
    v-bind vs v-model
    Times asked 1
  2. 2
    props and emit
    Times asked 2
  3. 3
    vue cdn vs cli
    Times asked 1
  4. 4
    to not let user create 2 campaigns of same name
    Times asked 2
  5. 5
    v-if vs v-show
    Times asked 3
Advice: Hes pretty chill so you can chill too
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  1. 1
    Explain binding in vue
    Times asked 2
  2. 2
    Asked about which degree I'm persuing apart from this
    Times asked 2
Advice: Overall he was a good proctor
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  1. 1
    What have you used for security
    Times asked 2
  2. 2
    Lifecycle hooks The proctor was friendly and gave me guidance for improving the project. He also asked me to implement review disable feature in first 5 mins, which i partially implemented and proctor was satisfied with that. At the end, he asked if you have anything more to show.
    Times asked 1
Advice: do all the questions in the sheet for th same proctor and have thorough knowledge of your code.
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  1. 1
    Basis overview is like he will ask questions related to vue and backend , though questions are same as he asked above but still I am writing.
    Times asked 2
  2. 2
    What is Props , Slot, How to pass data from child to parent
    Times asked 2
  3. 3
    What is V-if and V-show?
    Times asked 2
  4. 4
    He will ask for showing celery work.
    Times asked 2
  5. 5
    He will ask a change in code type of questions and that he will ask randomly so you can't predict that (I was not able to do so I told sorry sir , I am not able to figure it out), So you can do the same if needed 😀. Basically prepare all the questions from his side in this sheet you are good to go as he focuses majorly on vue js and backend. Overall Chill Proctor 😄😃 I will update my grade after I will get the results as how he penalize me for not solving code change question
    Times asked 2
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  1. 1
    Are you using CLI or CDN?
    Times asked 2
  2. 2
    What is ORM and are you using it?
    Times asked 2
  3. 3
    What is ORM's advantage?
    Times asked 2
  4. 4
    Changed the code - Add table to one page instead of Card view. Debugged the model.
    Times asked 2
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  1. 1
    Entire demo of the project, then he asked me to change the song play button.
    Times asked 2
  2. 2
    Difference between created and mounted. When we use them?
    Times asked 1
  3. 3
    Data binding. V- model and v- bind.
    Times asked 2
  4. 4
    Template inheritance.
    Times asked 2
  5. 5
    Overall good proctor. At last he gave some feedback.
    Times asked 2
  6. 6
    Most of the questions he asked were in this sheet.
    Times asked 2
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  1. 1
    1)First asked to demonstrate the app
    Times asked 2
  2. 2
    2)He asked to create a product with a existing product name and expiry date with a date of previous year. He said the product should not be created.
    Times asked 2
  3. 3
    3)He asked to buy a product with quantity greater than the stock and with negetive value.
    Times asked 2
  4. 4
    4)Then he asked to change some code.
    Times asked 2
  5. 5
    Then asked following questions:
    Times asked 2
  6. 6
    10)What are the methods of rest-api?
    Times asked 2
  7. 7
    11)What is the difference between PUT & PATCH methods or PUT & POST?
    Times asked 2
  8. 8
    12)How many celery tasks have you implement?
    Times asked 2
  9. 9
    13)Show the monthly report emails
    Times asked 2
  10. 10
    Thus, he ended the viva.
    Times asked 2
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  1. 1
    There was a bug in my code, told me to fix it.
    Times asked 2
  2. 2
    Asked to add a category with one of the existing name of category in the database. He told me this'll create a copy of category, this should not happen. While adding it should show a warning. ( Same for product also)
    Times asked 2
  3. 3
    Asked to set manufacture date to today's date and expiry date to yesterday's. This also should not work, it should give warning while adding or updating the product. 13.Asked about memcached and rediscached
    Times asked 2
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  1. 1
    First he asked for ID card.
    Times asked 2
  2. 2
    Full demonstration of the project.
    Times asked 3
  3. 3
    Then he randomly instructed to implement a simple feature. (like adding a button or changing the color etc..)
    Times asked 2
  4. 4
    what is hooks?
    Times asked 1
  5. 5
    show me the code where you have implemented celery.
    Times asked 2
  6. 6
    show me the data models you have used. The proctor was friendly enough. He will even give his suggestions at the end :)
    Times asked 2
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  1. 1
    explain groupby in SQL
    Times asked 2
  2. 2
    what is webhook
    Times asked 2
  3. 3
    Exhaustive demo of project
    Times asked 2
  4. 4
    why ticket cancellation facility not implemented - as it was not core requirement
    Times asked 2
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  1. 1
    Vue CDN or CLI used
    Times asked 2
  2. 2
    Asked me to display the total no of tickets left for the show in the booking screen
    Times asked 2
  3. 3
    Why didn’t I implement ticket cancellation option
    Times asked 2
  4. 4
    Life cycle hooks
    Times asked 6
  5. 5
    Flask-security
    Times asked 2
  6. 6
    If a record is deleted while autoincrement being turned on what will be the next index value
    Times asked 2
  7. 7
    How would you add a new role (Manager) who has all the admin rights and a few more given that the app is already in production (Thought process)
    Times asked 2
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  1. 1
    Started with introduction and then proceeded to demo of application.
    Times asked 2
  2. 2
    What do you understand by web application development? What are the main aspects of it?
    Times asked 2
  3. 3
    What framework of Python do you use to render your view?
    Times asked 2
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  1. 1
    What all celery jobs have you done
    Times asked 2
  2. 2
    Questions on SQL like JOINS, Subquery, Aggregate functions, Group by, Having
    Times asked 2
  3. 3
    What other things are you doing besides this degree? Why are you doing this degree?
    Times asked 2
  4. 4
    Questions on frontend like what type of styling have you used?
    Times asked 2
  5. 5
    Suggestions in the app and some more talking... Supportive and chill proctor
    Times asked 2
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  1. 1
    He will ask a change in code type of questions and that he will ask randomly so you can't predict that (I was not able to do so I told sorry sir , I am not able to figure it out), So you can do the same if needed 😀. Basically prepare all the questions from his side in this sheet you are good to go as he focuses majorly on vue js and backend. Overall Chill Proctor 😄😃 I will update my grade after I will get the results as how he penalize me for not solving code change question
    Times asked 2
    Official solution

    SimpleViva wrap-up hai. Short thanks + confirm submission ZIP latest hai.

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  1. 1
    Theory ques-
    Times asked 2
    Official solution

    SimpleTheory = concepts: ORM, MVC, auth vs authz, Jinja inheritance, sessions. 1-line def + project example.

  2. 2
    How is Vue.js different from Angular and React
    Times asked 2
    Official solution

    SimpleCode explain formula: input kya aaya → auth/validation → DB change → response/UI.

    Viva tipFunction signature + 3-4 important lines + edge case.

  3. 3
    Few other questions i don't remember
    Times asked 2
    Official solution

    SimpleViva wrap-up hai. Short thanks + confirm submission ZIP latest hai.

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  1. 1
    Verified ID card.
    Times asked 2
    Official solution

    SimpleCamera pe clearly college/IITM ID dikhao — naam aur photo match hone chahiye.

    Viva tipPehle se ID haath mein rakho, glare mat aane do. Iske baad GitHub + project run.

  2. 2
    (I think he asked one more question, but cant remember it, but it wasn't out of the sheet)
    Times asked 2
    Official solution

    SimpleViva wrap-up hai. Short thanks + confirm submission ZIP latest hai.

  3. 3
    The proctor was very calm and patient throughout the interview, he was silent throughout the demo. He did not ask anything outside the commonly shared question sheet. The coding question was also the same placement restriction that many previous students had reported.
    Times asked 2
    Official solution

    SimpleLive coding: notepad/editor mein chhota Flask route / Jinja loop / model field. Calm raho, run karke dikhao.

Advice: Prepare the theory questions from the response sheet thoroughly—they are more than enough. Know your project flow and be able to explain your code confidently. The proctor is friendly and does not try to confuse students.
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  1. 1
    POD: L2_100
    Times asked 2
    Official solution

    SimpleViva wrap-up hai. Short thanks + confirm submission ZIP latest hai.

  2. 2
    * First, he asked me to demonstrate all the functionalities of my project.
    Times asked 1
    Official solution

    SimpleDemo script pehle se practice: 5–7 min, Admin + User roles, saare mandatory features.

    Suggested flow1) Register/login user
    2) Admin login — CRUD
    3) Approval/blacklist
    4) Booking/apply + edge case
    5) Search
    6) Logout

    Viva tipBolte-bolte dikhao. Code tab kholna jab poochhein.

  3. 3
    * What is Vue?
    Times asked 1
    Official solution

    SimpleVue = UI ka smart assistant. Data badlo, screen khud update. MAD1 Jinja har click pe naya HTML.

    Progressive frontend framework. Components, reactivity, directives.

    MAD2 SPA: ek index.html, Vue Router pages, Flask sirf JSON.

    Fayde: easy, SFC, docs. Vs React: templates HTML-like, course sikhata hai. Vs plain JS: baar-baar DOM mat chhedo.

    Example

    <!-- HelloWorld.vue -->
<template>
  <h1>{{ msg }}</h1>
</template>
<script>
export default { data() { return { msg: 'Hello' } } }
</script>

    Project example: Navbar.vue + views (Login, Dashboard). data() / setup() reactive. fetch APIs.

    Viva tipFayde: easy, SFC, reactivity. Vs React: chhota learning curve. Vs plain JS: UI state auto-update.

  4. 4
    * What are Vuex and Pinia?
    Times asked 1
    Official solution

    SimplePinia naya store: mutations nahi, seedha state. Vue 3 recommended.

    defineStore. Vuex vs Pinia: naya project Pinia. Purana Vuex valid.

    Component = reusable UI block (Navbar, Card). Props parent→child data, emit child→parent event. Slots parent HTML inner content.

    computed cache + reactive derive (filtered list). watch side-effect (query change pe API). methods events. ref() primitive, reactive() object. Vuex/Pinia global store; localStorage persist, store nahi.

    SFC: template + script + style ek .vue file. Parent-child exam favourite: list parent, row child :item + @delete.

    Project example: stores/user.js. Agar Vuex hai to Pinia ka naam mat lo unless used.

  5. 5
    * What are Lifecycle Hooks?
    Times asked 1
    Official solution

    SimpleVue.js frontend framework — reactive UI components. MAD2 mein common, MAD1 optional.

    Component: reusable UI (Navbar.vue) + data + template.
    Props: parent → child data. Child → parent: $emit('update', val).
    Slots: parent child ke andar extra HTML daal sakta hai.
    Lifecycle: created (data setup), mounted (DOM ready — API call), updated, unmounted.
    v-model two-way bind. Vue Router SPA routes (routes.js). Vuex/Pinia global state; mutations sync change, actions async.
    Standalone component: khud ke saath compile, parent register kam.

  6. 6
    * What is the difference between Optional Chaining and the Nullish Coalescing Operator?
    Times asked 2
    Official solution

    SimpleType coercion = auto type convert (JS '5'+1 → '51'). Strict === prefer karo. TypeScript types coercion kam karta hai.

  7. 7
    * What is SQLAlchemy?
    Times asked 1
    Official solution

    SimpleSQLAlchemy Python ka sabse popular ORM hai. MAD1 mein Flask-SQLAlchemy wrapper use hota hai.

    db = SQLAlchemy(app)

    class Book(db.Model):
    id = db.Column(db.Integer, primary_key=True)
    title = db.Column(db.String(80), nullable=False)

Operations: db.session.add(obj), .commit(), .delete(obj), Model.query.all(), .filter_by(), .get_or_404(id).
db.Model ek class hai (function nahi). db object engine + session + metadata hold karta hai.

    SQLALCHEMY_TRACK_MODIFICATIONS=False extra signals band karta hai, performance warning hatati hai.

  8. 8
    * Coding Question: Write the code to ensure that a student can apply to a maximum of two drives.
    Times asked 2
    Official solution

    SimpleLive coding: notepad/editor mein chhota Flask route / Jinja loop / model field. Calm raho, run karke dikhao.

  9. 9
    * Coding Question: Write the code to prevent a new student from applying to a new drive under the given condition.
    Times asked 2
    Official solution

    SimpleLive coding: notepad/editor mein chhota Flask route / Jinja loop / model field. Calm raho, run karke dikhao.

  10. 10
    * Explain all the background tasks implemented in your project, including the reminder email task and the monthly report task.
    Times asked 2
    Official solution

    SimpleCode explain formula: input kya aaya → auth/validation → DB change → response/UI.

    Viva tipFunction signature + 3-4 important lines + edge case.

Advice: The examiner was very chill, friendly, and cooperative throughout the viva
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  1. 1
    Show demo [ dwnlded from the portal. Setup the celery timing to next 5mins and ranthe app] He was really silent, I calmly created a venv installed the requiremnts and changed the celery time, then ran. He didn't ask anything, I kept explaining my app [ gone through each feature ] - didn't even know if he was listening, after showing wevrythins I aksed "that si sir any feature to be shoen next?" no reply "Hello sir?" and then he replied "yeah okay"
    Times asked 2
    Official solution

    SimpleDemo script pehle se practice: 5–7 min, Admin + User roles, saare mandatory features.

    Suggested flow1) Register/login user
    2) Admin login — CRUD
    3) Approval/blacklist
    4) Booking/apply + edge case
    5) Search
    6) Logout

    Viva tipBolte-bolte dikhao. Code tab kholna jab poochhein.

  2. 2
    "show me the generated reports in mail". Only admin was generated,(since the suer boooking was done after the set 5 mins the mail was not received] I explained that and showed the previsously geenrated report. He said that's okay good.
    Times asked 2
    Official solution

    SimpleDemo 5–7 min ki kahani: saari roles, koi milestone skip nahi, bolte-bolte dikhao.

    Examiner list tick karta hai. Crash ho to panic nahi — terminal error padho.

    Code tab kholna jab poochhein. Extra uncommitted features mat dikhana agar portal ZIP mein nahi.

    Suggested flow1) Register/login user
    2) Admin login — CRUD
    3) Approval/blacklist
    4) Booking/apply + edge case
    5) Search + charts
    6) CSV export / email job
    7) Logout

    Project example: Jo statement/parking/jobs/tickets hai uske user+admin journeys.

    Viva tipBol: 'Yahan overbooking rokta hoon'. Mandatory features pehle, polish baad.

  3. 3
    Go to admin dashboard
    Times asked 2
    Official solution

    SimpleViva wrap-up hai. Short thanks + confirm submission ZIP latest hai.

  4. 4
    [ asked the same code from the sheet] trekking app - Whenever the user books it should be in "pending" and admin should approve the booking , then only it should show booked.
    Times asked 2
    Official solution

    SimpleProject overview: problem → roles → main entities → key flows (register, book, admin approve).

    Viva tip1 minute elevator pitch ready rakho, phir demo.

  5. 5
    Implemeted it and showed him, said "good"
    Times asked 2
    Official solution

    SimplePehle 1-line definition, phir apne MAD1 project mein file dikhao, phir chhota example.

    Suggested flow1) Concept kya hai?
    2) Mere code mein kahan?
    3) Example / demo
    4) Edge case

    Example

    # related file: models.py / routes / template
# formula: request → check/auth → DB → render/redirect

    Viva tipExact line yaad nahi to honestly related part dikhao. Bluff mat karo.

  6. 6
    Theory questions followed next
    Times asked 2
    Official solution

    SimpleTheory = concepts: ORM, MVC, auth vs authz, Jinja inheritance, sessions. 1-line def + project example.

Advice: He's silent, doesn't try to ask any cross questions, just the one from the sheet. A good one
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  1. 1
    The interview lasted around 40 minutes.
    Times asked 2
    Official solution

    SimpleViva wrap-up hai. Short thanks + confirm submission ZIP latest hai.

  2. 2
    The interviewer had his camera on throughout the meeting.
    Times asked 2
    Official solution

    SimplePehle 1-line definition, phir apne MAD1 project mein file dikhao, phir chhota example.

    Suggested flow1) Concept kya hai?
    2) Mere code mein kahan?
    3) Example / demo
    4) Edge case

    Example

    # related file: models.py / routes / template
# formula: request → check/auth → DB → render/redirect

    Viva tipExact line yaad nahi to honestly related part dikhao. Bluff mat karo.

  3. 3
    He looked Tamil Black Guy.
    Times asked 2
    Official solution

    SimplePehle 1-line definition, phir apne MAD1 project mein file dikhao, phir chhota example.

    Suggested flow1) Concept kya hai?
    2) Mere code mein kahan?
    3) Example / demo
    4) Edge case

    Example

    # related file: models.py / routes / template
# formula: request → check/auth → DB → render/redirect

    Viva tipExact line yaad nahi to honestly related part dikhao. Bluff mat karo.

  4. 4
    He was kind and mostly quiet during the session.
    Times asked 2
    Official solution

    SimpleMAD1 mein usually session-based auth: login pe session['user_id'], har request pe verify.

    Example

    session['user_id'] = user.id
uid = session.get('user_id')
user = User.query.get(uid)

    Viva tipSECRET_KEY set karo warna session insecure. logout pe session.clear().

  5. 5
    Task 1
    Times asked 2
    Official solution

    SimpleViva wrap-up hai. Short thanks + confirm submission ZIP latest hai.

  6. 6
    He asked me to implement the following rule:
    Times asked 2
    Official solution

    SimpleViva wrap-up hai. Short thanks + confirm submission ZIP latest hai.

  7. 7
    «Once a student is placed, the student should not be able to apply to any other placement drive.»
    Times asked 2
    Official solution

    SimpleProject overview: problem → roles → main entities → key flows (register, book, admin approve).

    Viva tip1 minute elevator pitch ready rakho, phir demo.

  8. 8
    I completed this change in about 5 minutes. It only required a couple of lines of code.
    Times asked 2
    Official solution

    SimpleViva wrap-up hai. Short thanks + confirm submission ZIP latest hai.

  9. 9
    He then gave me another requirement:
    Times asked 2
    Official solution

    SimplePehle 1-line definition, phir apne MAD1 project mein file dikhao, phir chhota example.

    Suggested flow1) Concept kya hai?
    2) Mere code mein kahan?
    3) Example / demo
    4) Edge case

    Example

    # related file: models.py / routes / template
# formula: request → check/auth → DB → render/redirect

    Viva tipExact line yaad nahi to honestly related part dikhao. Bluff mat karo.

  10. 10
    «A student can apply to a maximum of 2 drives and can receive placements from a maximum of 2 companies, but no more than that.»
    Times asked 2
    Official solution

    SimpleProject overview: problem → roles → main entities → key flows (register, book, admin approve).

    Viva tip1 minute elevator pitch ready rakho, phir demo.

  11. 11
    I implemented the logic, but after making the changes, the API started throwing an error. The interviewer smiled and said:
    Times asked 2
    Official solution

    SimpleInt column mein string daalne pe SQLAlchemy/DB type error ya Integrity/StatementError. Empty table pe bhi same validation fail — row count matter nahi.

    Example

    # SQLite may coerce sometimes; Postgres: invalid input syntax for integer
Spot(status='free', lot_id='abc')  # lot_id int → error
  12. 12
    «"You did the last change in 2 minutes, and now you can't do this simple extra change?"»
    Times asked 2
    Official solution

    SimpleViva wrap-up hai. Short thanks + confirm submission ZIP latest hai.

  13. 13
    I tried to explain my approach and the logic I had implemented, but the API issue remained unresolved during the interview.
    Times asked 2
    Official solution

    SimpleCode explain formula: input kya aaya → auth/validation → DB change → response/UI.

    Viva tipFunction signature + 3-4 important lines + edge case.

  14. 14
    Technical Questions
    Times asked 2
    Official solution

    SimpleViva wrap-up hai. Short thanks + confirm submission ZIP latest hai.

  15. 15
    After the coding tasks, he asked me a few conceptual questions:
    Times asked 2
    Official solution

    SimpleViva wrap-up hai. Short thanks + confirm submission ZIP latest hai.

Advice: Most of the call was silent, He also came late. And the theory qns are always always repeated The same 4-5 qns everytime Code qns just ask the previous person who have viva on the same day. Mostly same code qn And take time to code Or else he will give another code qn I prepared only for 1 hr And project was made by claude. Best of luck
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  1. 1
    Explain lifecycle
    Times asked 2
    Official solution

    SimpleCode explain formula: input kya aaya → auth/validation → DB change → response/UI.

    Viva tipFunction signature + 3-4 important lines + edge case.

  2. 2
    How they communicate ( question was like that but I forgot exactly what it was )
    Times asked 2
    Official solution

    SimpleCode explain formula: input kya aaya → auth/validation → DB change → response/UI.

    Viva tipFunction signature + 3-4 important lines + edge case.

  3. 3
    A term which I never heard so I dont remember
    Times asked 2
    Official solution

    SimpleViva wrap-up hai. Short thanks + confirm submission ZIP latest hai.

  4. 4
    Some follow up questions.
    Times asked 2
    Official solution

    SimpleViva wrap-up hai. Short thanks + confirm submission ZIP latest hai.

Advice: He is good.
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  1. 1
    download the repo and start demo- i 1st showed the app and went to vs code and kept showing all code-showed him all functionality- all the restrictions as required by rubrics 3)coding question - asked me to disable a student applying for another job if he is already placed-got stuck patiently waited for me to complete -he will also want ot see it working- so ensure the code works
    Times asked 2
    Official solution

    SimpleLive coding: notepad/editor mein chhota Flask route / Jinja loop / model field. Calm raho, run karke dikhao.

  2. 2
    show me the reports generated from the app- i had the monthly report and reminder for interview and offer letter
    Times asked 2
    Official solution

    SimpleLive jobs: Redis, worker, beat, crontab abhi, logs + email/CSV.

    Scheduled vs user-triggered dono dikhao. Missing feature honestly.

    Examiner 2 cheezein: simple desi line + tumhare project ki exact file.

    Pehle ID, GitHub, portal ZIP. Phir run: Redis + Flask + worker + beat + Vue. Feature demo: login, RBAC, cache hit/miss, Celery mail, search.

    Line pe ungli: input kahan, kaunsa check, query/cache/task, JSON/UI. Copilot band. Jo nahi kiya honestly bolo + kaise add karte.

    Suggested flow1) redis
    2) worker
    3) beat
    4) crontab now
    5) logs + MailHog

    Example

    CELERY_BEAT_SCHEDULE = {
  'daily-reminder': {
    'task': 'jobs.daily_reminder',
    'schedule': crontab(hour=18, minute=0),
  },
}

    Project example: Change schedule current time. MailHog. Export button 202.

  3. 3
    different status of vue- before mounted ,mounted etc..
    Times asked 2
    Official solution

    SimpleonMounted = Composition API ka mounted. setup() ke andar call.

    Options API: mounted() method. Mix mat. Vue 3 dono chalte.

    Lifecycle = component ki zindagi: created (instance, DOM nahi) → mounted/onMounted (DOM ready — fetch, Chart.js yahi) → updated → unmounted (clearInterval).

    Dashboard API created mein isliye nahi ki $el/canvas missing ho sakta. Composition API: onMounted(() => {}) setup ke andar. Options: mounted() method. Mix mat.

    Examiner 'konsa hook use kiya' — related .vue kholo, line padh ke bolo.

    Example

    import { onMounted, ref } from 'vue'
const items = ref([])
onMounted(async () => {
  items.value = await (await fetch('/api/items')).json()
})

    Project example: script setup: onMounted(loadStats).

Advice: he has the above fixed question paper as i have seen in the past as well. Ensure you don't have the feature enable so that you can prepare this question and enable it in front of him. very cool. All the best!!
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  1. 1
    Exactly same theory questions which have been mentioned in the sheet. Same HMS project coding questions -> how a patient can book appointments with different doctors on same date and slot. I had practiced that question before viva so i easily implemented.
    Times asked 2
    Official solution

    SimpleLive coding: notepad/editor mein chhota Flask route / Jinja loop / model field. Calm raho, run karke dikhao.

Advice: Practice all theory questions which have been mentioned in the sheet bz they will ask you a lot theory question and for coding you will be luck if someone has given viva with that proctor before you on some project statement , just see what he has been asking coding question for your project and try to implement in you project before viva start. All the best, don't warry proctor is very chill guy.
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  1. 1
    What are lifecyclehooks
    Times asked 2
    Official solution

    SimpleLifecycle = component ki zindagi ke stages. API call tab jab DOM ready ho — mounted.

    created: instance bani, this data, DOM nahi. mounted/onMounted: page pe aa gaya — fetch, Chart.js, setInterval.
    updated: data change ke baad. unmounted: cleanup (clearInterval) warna memory leak.

    Dashboards onMounted isliye: canvas/API tab valid. created mein $el nahi.

    Composition: onMounted(() => {}) setup ke andar.

    Example

    export default {
  async mounted() {
    const r = await fetch('/api/venues')
    this.venues = await r.json()
  }
}

    Project example: Venues.vue mounted fetch list. Clock component unmounted pe interval clear.

    Viva tipcreated: data setup, DOM nahi. mounted/onMounted: $el mil gaya — fetch yahi. Dashboards isliye onMounted use karti hain.

  2. 2
    Why are you using JWT and not SessionStorage ( Flask )
    Times asked 2
    Official solution

    SimpleMAD1 mein usually session-based auth: login pe session['user_id'], har request pe verify.

    Example

    session['user_id'] = user.id
uid = session.get('user_id')
user = User.query.get(uid)

    Viva tipSECRET_KEY set karo warna session insecure. logout pe session.clear().

  3. 3
    Can an accepted student apply in another company ? if yes make it so that he can't ( I made it so the student can't see any drives after being accepted)
    Times asked 2
    Official solution

    SimpleLive UI change: relevant CSS/HTML template kholo — color, margin, flex, bootstrap class. Save + hard refresh.

    Example

    /* button red */
.btn-primary { background: red; }

/* center navbar item */
.navbar { justify-content: center; }

    Viva tipDevTools se pehle try, phir file mein permanent change.

  4. 4
    Make the accepted student be able to see the drives but not apply . ( Stopped me midway after I explained the solution did not need to code the answer )
    Times asked 2
    Official solution

    SimpleCode explain formula: input kya aaya → auth/validation → DB change → response/UI.

    Viva tipFunction signature + 3-4 important lines + edge case.

Advice: Every single question he asks is in the sheet.
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  1. 1
    -First show demo
    Times asked 2
    Official solution

    SimpleDemo script pehle se practice: 5–7 min, Admin + User roles, saare mandatory features.

    Suggested flow1) Register/login user
    2) Admin login — CRUD
    3) Approval/blacklist
    4) Booking/apply + edge case
    5) Search
    6) Logout

    Viva tipBolte-bolte dikhao. Code tab kholna jab poochhein.

  2. 2
    -coding qn: currently if a student got placed that student can still apply for other drives, sir asked me to change the code such that a student who got placed cannot apply for other drives.
    Times asked 2
    Official solution

    SimpleLive UI change: relevant CSS/HTML template kholo — color, margin, flex, bootstrap class. Save + hard refresh.

    Example

    /* button red */
.btn-primary { background: red; }

/* center navbar item */
.navbar { justify-content: center; }

    Viva tipDevTools se pehle try, phir file mein permanent change.

  3. 3
    -how is communication happening btw vue components
    Times asked 2
    Official solution

    SimpleVue = UI ka smart assistant. Data badlo, screen khud update. MAD1 Jinja har click pe naya HTML.

    Progressive frontend framework. Components, reactivity, directives.

    MAD2 SPA: ek index.html, Vue Router pages, Flask sirf JSON.

    Fayde: easy, SFC, docs. Vs React: templates HTML-like, course sikhata hai. Vs plain JS: baar-baar DOM mat chhedo.

    Example

    <!-- HelloWorld.vue -->
<template>
  <h1>{{ msg }}</h1>
</template>
<script>
export default { data() { return { msg: 'Hello' } } }
</script>

    Project example: Navbar.vue + views (Login, Dashboard). data() / setup() reactive. fetch APIs.

    Viva tipFayde: easy, SFC, reactivity. Vs React: chhota learning curve. Vs plain JS: UI state auto-update.

  4. 4
    and two more i don't remember. But don't worry very nice proctor, he will guide you through everything and is very calm.
    Times asked 2
    Official solution

    SimpleViva wrap-up hai. Short thanks + confirm submission ZIP latest hai.

Advice: You are in safe hands if you got him (be prepared tho). First of all he enabled his video which did put my mind at ease for some reason since I could see him as well. When the viva started I was very tensed but as it proceeded I found myself to be very calm because of him. Best examiner I got so far tbh
See reviews Level2_100 MAD1 Level 2
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  1. 1
    id check
    Times asked 3
    Official solution

    SimpleGitHub repo open karo: commits, collaborators, README. Examiner check karta hai tumne khud kaam kiya.

    Example

    Settings → Collaborators
Commits: regular messages, last-day dump nahi.

    Viva tipPrivate repo access pehle de do. Main branch submitted ZIP se match honi chahiye.

  2. 2
    coding ques - prevent student from applying to multiple drives
    Times asked 2
    Official solution

    SimplePehle 1-line definition, phir apne MAD1 project mein file dikhao, phir chhota example.

    Suggested flow1) Concept kya hai?
    2) Mere code mein kahan?
    3) Example / demo
    4) Edge case

    Example

    # related file: models.py / routes / template
# formula: request → check/auth → DB → render/redirect

    Viva tipExact line yaad nahi to honestly related part dikhao. Bluff mat karo.

  3. 3
    whtat security u are using (jwt)
    Times asked 2
    Official solution

    SimpleJWT teen tukde ki signed chitthi: header.payload.signature. Padhi ja sakti hai, badli nahi ja sakti.

    Encoded (Base64) + signed, encrypted nahi (JWE alag). Payload mein password mat daalo — koi jwt.io pe dekh lega.

    Login pe server secret se HMAC (HS256). Har API Authorization: Bearer <token>.
    Expiry exp. Change payload → signature fail → 401.

    Session MAD1 server yaad rakhta. JWT MAD2 client rakhta, server stateless-ish.

    Example

    eyJhbGciOiJIUzI1NiJ9.{"sub":1,"role":"admin"}.signature
# Authorization: Bearer <token>

    Project example: POST /login → token LS. fetch interceptor header. @jwt_required APIs.

    Viva tipAlgo HS256. Secret env var. jwt.io pe payload dikhao, secret public site pe mat paste.

  4. 4
    how component interact with each other (they dont in my app so i explained him how )
    Times asked 2
    Official solution

    SimpleCode explain formula: input kya aaya → auth/validation → DB change → response/UI.

    Viva tipFunction signature + 3-4 important lines + edge case.

  5. 5
    pretty chill proctor , just practice through the sheet
    Times asked 2
    Official solution

    SimpleViva wrap-up hai. Short thanks + confirm submission ZIP latest hai.

Advice: Just prepare from the sheet and don't worry ,you will do great <3
See reviews Level2_100 MAD1 Level 2
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  1. 1
    implement the functionality such that patient cannot book two or more appointments at same time
    Times asked 2
    Official solution

    SimpleNaya Flask route: URL, method, auth if needed, query, jsonify. Postman pehle.

    Examiner number/filter change easy rakhna. CORS. Frontend tabhi jab bole.

    Status codes sahi. Password JSON mein nahi.

    Examiner 2 cheezein: simple desi line + tumhare project ki exact file.

    Pehle ID, GitHub, portal ZIP. Phir run: Redis + Flask + worker + beat + Vue. Feature demo: login, RBAC, cache hit/miss, Celery mail, search.

    Line pe ungli: input kahan, kaunsa check, query/cache/task, JSON/UI. Copilot band. Jo nahi kiya honestly bolo + kaise add karte.

    Example

    @app.route('/api/sum', methods=['POST'])
def sum_num():
    d = request.get_json()
    return jsonify(result=d['a'] + d['b'])

    Project example: resources.py new Resource. Test Thunder. Optional Vue fetch.

Advice: Prepare the theoretical question as they are same and coding question depends on any missing functionality implementation or anything he find is not valid so could ask to change
See reviews Level2_100 MAD1 Level 2
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  1. 1
    Level2_100:
    Times asked 2
    Official solution

    SimpleLevel = viva difficulty band. Level 1 usually demo + basics; higher pe live coding + deeper theory.

    Viva tipJo level assign hai uske hisaab se demo + theory ready rakho.

  2. 2
    He interrupted the demo and asked to create appointment by same patient for two different doctor on same day and same slot. He wants to see if it was allowed or not. I said that it's allowed . So he asked me to apply the restrictions so a patient can't do it.
    Times asked 2
    Official solution

    SimpleDemo script pehle se practice: 5–7 min, Admin + User roles, saare mandatory features.

    Suggested flow1) Register/login user
    2) Admin login — CRUD
    3) Approval/blacklist
    4) Booking/apply + edge case
    5) Search
    6) Logout

    Viva tipBolte-bolte dikhao. Code tab kholna jab poochhein.

  3. 3
    Asked me to show all jobs. But completed viva after seeing just one job.
    Times asked 2
    Official solution

    SimpleViva wrap-up hai. Short thanks + confirm submission ZIP latest hai.

Advice: Chill examiner.
See reviews Level2_100 MAD1 Level 2
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  1. 1
    add new functionality in dashboard if student can accept or reject offers(agr multiple offers milgye to)
    Times asked 2
    Official solution

    SimpleAdmin PATCH application status. Notify email optional. Accept or reject offers dashboard.

    Demo.

    Pehle 1-line definition, phir related MAD2 layer (Vue SFC / Flask route / models.py / tasks.py / Redis).

    4-line formula: input kahan se aaya, auth/validation kaunsa, DB ya cache ya Celery, kya return.

    Related mix mat karo — cache ≠ Celery, authentication ≠ authorization, v-if ≠ v-show, Beat ≠ Worker. Follow-up ke liye ek difference ready rakho.

    Project example: Admin applications table.

    Project example: Admin applications table.

  2. 2
    modify to remove department matching criteria from code
    Times asked 1
    Official solution

    SimplePehle task repeat karke confirm, smallest diff, run, 2 line explain.

    Model? API? sirf CSS? Edge case ek. Docs if they allow.

    Examiner 2 cheezein: simple desi line + tumhare project ki exact file.

    Pehle ID, GitHub, portal ZIP. Phir run: Redis + Flask + worker + beat + Vue. Feature demo: login, RBAC, cache hit/miss, Celery mail, search.

    Line pe ungli: input kahan, kaunsa check, query/cache/task, JSON/UI. Copilot band. Jo nahi kiya honestly bolo + kaise add karte.

    Suggested flow1) Confirm
    2) Layer choose
    3) Change → demo
    4) Edge

    Example

    @app.route('/api/hello')
def hello():
    return jsonify(message='Hello World')

    Project example: Jo feature domain (parking/jobs/tickets) usi language mein variable names.

  3. 3
    how jwt is used and validated
    Times asked 1
    Official solution

    SimpleValidation = input rules: required, email format, length, unique. Frontend UX, backend security — dono.

    Example

    if not email or '@' not in email:
    flash('Invalid email')
    return redirect(request.url)
if User.query.filter_by(email=email).first():
    flash('Email taken')
  4. 4
    use of sqlalchemy
    Times asked 1
    Official solution

    SimpleSQLAlchemy MAD1 ka common ORM. Flask-SQLAlchemy wrapper se db.Model, db.session.

    Example

    user = User(email='a@b.com')
db.session.add(user)
db.session.commit()
users = User.query.filter_by(role='admin').all()
  5. 5
    rbac
    Times asked 1
    Official solution

    SimpleRBAC = Role Based Access Control. Roles (admin/user) se permissions milti hain, har user pe alag list nahi.

    Example

    if current_user.role != 'admin':
    flash('Not allowed')
    return redirect(url_for('user.home'))
  6. 6
    authentication used
    Times asked 2
    Official solution

    SimpleAuthentication: tu kaun hai? (login). Authorization: tujhe permission hai? (role check).

    Example

    # auth
if check_password_hash(user.password, pwd):
    session['user_id'] = user.id

# authz
if user.role != 'admin':
    abort(403)
  7. 7
    then asked me about my degree and how this degree aids me in that , celery partially work krra tha to uspe kuch sawal,phir pucha jo chize shi se nhi kri hai vo kyu nhi kri time nhi tha ya bhulgye ya miss hogyaa
    Times asked 2
    Official solution

    SimpleCelery = background naukri. HTTP request ko 10 second email bhejne ke liye mat rokna.

    Distributed task queue: aap function ko abhi nahi, worker process mein later/retry/schedule pe chalaate ho.

    MAD2 typical jobs: daily reminder mail, monthly HTML report, user-triggered CSV export.

    Web request 200ms hona chahiye. 10,000 emails request thread mein = timeout. Worker alag CPU pe kaam kare.

    Redis broker chahiye. Beat alag process schedule ke liye.

    Example

    @celery.task
def daily_reminder():
    for u in User.query.filter_by(active=True):
        send_mail(u.email, 'Book something today!')

    Project example: User Export click → 202 Accepted. Worker CSV + email. Daily 6pm Beat reminder.

    Viva tipWorker + Redis bina Beat ke user-triggered chalega. Scheduled jobs ke liye Beat bhi chahiye.

Advice: chill hai bs be thorough about your code
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  1. 1
    - show me the complete demo ( register a company, approve by admin, create a student, cretae a drive, make student apply, make him selected show everything)
    Times asked 2
    Official solution

    SimpleDemo script pehle se practice: 5–7 min, Admin + User roles, saare mandatory features.

    Suggested flow1) Register/login user
    2) Admin login — CRUD
    3) Approval/blacklist
    4) Booking/apply + edge case
    5) Search
    6) Logout

    Viva tipBolte-bolte dikhao. Code tab kholna jab poochhein.

  2. 2
    - adviced that it would be more efficient if a student selected in any drive won't be able to apply in any other drive ( my app was not having this feature)
    Times asked 2
    Official solution

    SimpleViva wrap-up hai. Short thanks + confirm submission ZIP latest hai.

  3. 3
    - option api vs composition api
    Times asked 1
    Official solution

    SimpleOptions: data methods computed alag. Composition: setup() logic group, reuse.

    Vue 3 both. Course either. Don't claim unused API.

    Component = reusable UI block (Navbar, Card). Props parent→child data, emit child→parent event. Slots parent HTML inner content.

    computed cache + reactive derive (filtered list). watch side-effect (query change pe API). methods events. ref() primitive, reactive() object. Vuex/Pinia global store; localStorage persist, store nahi.

    SFC: template + script + style ek .vue file. Parent-child exam favourite: list parent, row child :item + @delete.

    Project example: script setup vs export default options — open file.

  4. 4
    - redis
    Times asked 1
    Official solution

    SimpleRedis fridge pe sticky note hai — poori kitchen (database) kholne ki zarurat nahi.

    Redis in-memory key-value store hai. Data RAM mein rehta hai, isliye disk wale SQLite/Postgres se kai guna tez.

    MAD2 mein Redis do kaam karta hai:
    1) Cache — same venue/show/dashboard JSON baar-baar DB se mat nikaalo.
    2) Celery message broker — Flask task queue mein daalta hai, worker uthata hai.

    Source of truth database hi hai. Redis band ho to cache miss ho jaata hai aur Celery queue ruk sakti hai. Crash pe cache gayab ho sakta hai — isliye important data sirf Redis mein mat rakho.

    Example

    import redis
r = redis.Redis(host='localhost', port=6379, db=0)
r.set('venues', json.dumps(data), ex=30)
print(r.get('venues'))

    Project example: GET /api/venues pehle Redis dekho. Miss pe SQLAlchemy query, phir SET with timeout. Celery worker Redis list se daily reminder uthata hai.

    Viva tipCache ke liye db=1, broker ke liye db=0 rakhna smart hai taaki keys mix na hon. Viva mein redis-cli ping → PONG dikhana strong hai.

Advice: be relaxed he won't eat you, pretty chill proctor, will even advice you and might even end the level2 viva in 30 mins and still pass you
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  1. 1
    Show id card , download app from portal and run demo
    Times asked 2
    Official solution

    SimpleExaminer portal wala submitted ZIP chahta hai. Local extra changes mat dikhana.

    Suggested flow1) Portal ZIP download
    2) Extract
    3) venv + pip install -r requirements.txt
    4) flask run / python app.py

  2. 2
    Implement admin activate doctor route
    Times asked 2
    Official solution

    SimpleNaya Flask route: URL, method, auth if needed, query, jsonify. Postman pehle.

    Examiner number/filter change easy rakhna. CORS. Frontend tabhi jab bole.

    Status codes sahi. Password JSON mein nahi.

    Examiner 2 cheezein: simple desi line + tumhare project ki exact file.

    Pehle ID, GitHub, portal ZIP. Phir run: Redis + Flask + worker + beat + Vue. Feature demo: login, RBAC, cache hit/miss, Celery mail, search.

    Line pe ungli: input kahan, kaunsa check, query/cache/task, JSON/UI. Copilot band. Jo nahi kiya honestly bolo + kaise add karte.

    Example

    @app.route('/api/sum', methods=['POST'])
def sum_num():
    d = request.get_json()
    return jsonify(result=d['a'] + d['b'])

    Project example: resources.py new Resource. Test Thunder. Optional Vue fetch.

  3. 3
    Implement patient can't book slot with another doctor in same time. When he is already book different doctor at same time .
    Times asked 2
    Official solution

    SimpleNaya Flask route: URL, method, auth if needed, query, jsonify. Postman pehle.

    Examiner number/filter change easy rakhna. CORS. Frontend tabhi jab bole.

    Status codes sahi. Password JSON mein nahi.

    Examiner 2 cheezein: simple desi line + tumhare project ki exact file.

    Pehle ID, GitHub, portal ZIP. Phir run: Redis + Flask + worker + beat + Vue. Feature demo: login, RBAC, cache hit/miss, Celery mail, search.

    Line pe ungli: input kahan, kaunsa check, query/cache/task, JSON/UI. Copilot band. Jo nahi kiya honestly bolo + kaise add karte.

    Example

    @app.route('/api/sum', methods=['POST'])
def sum_num():
    d = request.get_json()
    return jsonify(result=d['a'] + d['b'])

    Project example: resources.py new Resource. Test Thunder. Optional Vue fetch.

  4. 4
    What library you used in making backend.
    Times asked 2
    Official solution

    SimpleBackend libs: Flask, Flask-SQLAlchemy, Werkzeug, maybe Flask-Login/WTF, Flask-Mail/Celery (MAD2).

  5. 5
    What is pinia and vuex
    Times asked 1
    Official solution

    SimplePinia naya store: mutations nahi, seedha state. Vue 3 recommended.

    defineStore. Vuex vs Pinia: naya project Pinia. Purana Vuex valid.

    Component = reusable UI block (Navbar, Card). Props parent→child data, emit child→parent event. Slots parent HTML inner content.

    computed cache + reactive derive (filtered list). watch side-effect (query change pe API). methods events. ref() primitive, reactive() object. Vuex/Pinia global store; localStorage persist, store nahi.

    SFC: template + script + style ek .vue file. Parent-child exam favourite: list parent, row child :item + @delete.

    Project example: stores/user.js. Agar Vuex hai to Pinia ka naam mat lo unless used.

  6. 6
    What is props and emits .
    Times asked 2
    Official solution

    SimpleProps parent→child values. Emit child→parent signal. Basic communication.

    Difference props and emit.

    Component = reusable UI block (Navbar, Card). Props parent→child data, emit child→parent event. Slots parent HTML inner content.

    computed cache + reactive derive (filtered list). watch side-effect (query change pe API). methods events. ref() primitive, reactive() object. Vuex/Pinia global store; localStorage persist, store nahi.

    SFC: template + script + style ek .vue file. Parent-child exam favourite: list parent, row child :item + @delete.

    Project example: Card props venue emit select.

  7. 7
    What extra things you do other than this degree . If nothing then explore it .
    Times asked 2
    Official solution

    SimplePehle 1-line definition, phir apne MAD1 project mein file dikhao, phir chhota example.

    Suggested flow1) Concept kya hai?
    2) Mere code mein kahan?
    3) Example / demo
    4) Edge case

    Example

    # related file: models.py / routes / template
# formula: request → check/auth → DB → render/redirect

    Viva tipExact line yaad nahi to honestly related part dikhao. Bluff mat karo.

Advice: Very nice proctor 💯
See reviews Level2_100 MAD1 Level 2
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  1. 1
    LEVEL 2
    Times asked 3
    Official solution

    SimpleLevel = viva difficulty band. Level 1 usually demo + basics; higher pe live coding + deeper theory.

    Viva tipJo level assign hai uske hisaab se demo + theory ready rakho.

  2. 2
    - Vue CDN vs CLI; which one did you use
    Times asked 1
    Official solution

    SimpleCDN = Vue script tag se, jaise pen drive. CLI/Vite = poori factory (SFC, npm, bundle).

    CDN: no build, chhote apps, exam PC pe Node nahi to bhi chal. Weak: no .vue compile, 3rd-party cache, scale/team.

    CLI/Vite: Single File Components, env, code-split, production dist/. Scalable.

    Examiner 'which + why' — jo use kiya wahi justify, doosra naam rato mat.

    Example

    <!-- CDN -->
<script src="https://unpkg.com/vue@3/dist/vue.global.js"></script>

# Vite
npm run dev
npm run build

    Project example: CDN: index.html unpkg vue. CLI: package.json, npm run serve / vite.

    Viva tipCDN scalable large teams ke liye weak (no SFC compile, caching 3rd party). Examiner 'which + why' poochta hai — jo use kiya wahi justify karo.

  3. 3
    - which security was used
    Times asked 2
    Official solution

    SimplePassword DB mein plain text mat rakho — hash store karo jo reverse nahi hota.

    from werkzeug.security import generate_password_hash, check_password_hash
user.password = generate_password_hash(request.form['password'])
check_password_hash(user.password, form_password)

    Hashing ≠ encryption. Leak pe bhi original password nahi milta (easy passwords rainbow table se — isliye salt + strong hash).
    Column String(200) kyunki hash lamba hota hai. unique=True password pe mat lagao.

  4. 4
    - how is JWT different from session based management, which is better
    Times asked 2
    Official solution

    SimpleMAD1 mein usually session-based auth: login pe session['user_id'], har request pe verify.

    Example

    session['user_id'] = user.id
uid = session.get('user_id')
user = User.query.get(uid)

    Viva tipSECRET_KEY set karo warna session insecure. logout pe session.clear().

  5. 5
    - Which is the older version of the state management, in which version is pinia being used
    Times asked 2
    Official solution

    SimpleState management (Vuex/Pinia): shared app state. Advantage: props drilling kam, auth/cart central.

  6. 6
    - asked for demo of the project, all the celery jobs
    Times asked 2
    Official solution

    SimpleDemo script pehle se practice: 5–7 min, Admin + User roles, saare mandatory features.

    Suggested flow1) Register/login user
    2) Admin login — CRUD
    3) Approval/blacklist
    4) Booking/apply + edge case
    5) Search
    6) Logout

    Viva tipBolte-bolte dikhao. Code tab kholna jab poochhein.

  7. 7
    - there was an issue with drive creation where company could create drive for past dates. so that became my coding question - implement the current or future date drive creation
    Times asked 2
    Official solution

    SimpleLive coding: notepad/editor mein chhota Flask route / Jinja loop / model field. Calm raho, run karke dikhao.

Advice: very easy going proctor, he is more frontend focused, also theory focused so be prepared for it. He will give honest suggestions and constructive feedback, so make sure to ask your performance in the end
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  1. 1
    Vue 3 updates / patches from vue 2
    Times asked 2
    Official solution

    SimpleVue 3 naya engine: Composition API, fragments, better TS, tree-shaking. Vue 2 Options + filters.

    mounted vs onMounted. Filters Vue 3 mein hata — computed/methods.

    Version package.json / Vue.version se dikhao. Jo use kiya uske hooks bolo.

    SPA = ek HTML, Vue Router se views, full reload nahi. MPA = MAD1 Jinja har URL naya HTML.

    Vue Router: routes array, router-view, router-link, meta.auth + beforeEach guard. Dynamic /venues/:id → $route.params.id.

    Vite/CLI SFC + npm build dist/. CDN script tag, no SFC. Jo tumne use kiya wahi justify. Flask send_from_directory('dist') production pattern.

    Project example: package.json vue ^3.x. setup() + onMounted fetch.

    Viva tipVersion package.json / Vue.version se dikhao. MAD2 dono allowed usually — jo use kiya uske hooks bolo (mounted vs onMounted).

  2. 2
    And some questions about new things in vue 3 some stream thingy and tree
    Times asked 2
    Official solution

    SimpleVue = UI ka smart assistant. Data badlo, screen khud update. MAD1 Jinja har click pe naya HTML.

    Progressive frontend framework. Components, reactivity, directives.

    MAD2 SPA: ek index.html, Vue Router pages, Flask sirf JSON.

    Fayde: easy, SFC, docs. Vs React: templates HTML-like, course sikhata hai. Vs plain JS: baar-baar DOM mat chhedo.

    Example

    <!-- HelloWorld.vue -->
<template>
  <h1>{{ msg }}</h1>
</template>
<script>
export default { data() { return { msg: 'Hello' } } }
</script>

    Project example: Navbar.vue + views (Login, Dashboard). data() / setup() reactive. fetch APIs.

    Viva tipFayde: easy, SFC, reactivity. Vs React: chhota learning curve. Vs plain JS: UI state auto-update.

Advice: Chill guy but the questions he asked weren't in the sheet so wasn't able to prep for them and they were very odd ones this is updated feedback
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  1. 1
    Implement functionality such that the user can't book same parking lot if he has an already active booking
    Times asked 2
    Official solution

    SimpleNaya Flask route: URL, method, auth if needed, query, jsonify. Postman pehle.

    Examiner number/filter change easy rakhna. CORS. Frontend tabhi jab bole.

    Status codes sahi. Password JSON mein nahi.

    Examiner 2 cheezein: simple desi line + tumhare project ki exact file.

    Pehle ID, GitHub, portal ZIP. Phir run: Redis + Flask + worker + beat + Vue. Feature demo: login, RBAC, cache hit/miss, Celery mail, search.

    Line pe ungli: input kahan, kaunsa check, query/cache/task, JSON/UI. Copilot band. Jo nahi kiya honestly bolo + kaise add karte.

    Example

    @app.route('/api/sum', methods=['POST'])
def sum_num():
    d = request.get_json()
    return jsonify(result=d['a'] + d['b'])

    Project example: resources.py new Resource. Test Thunder. Optional Vue fetch.

  2. 2
    Vue memo
    Times asked 2
    Official solution

    SimpleVue = UI ka smart assistant. Data badlo, screen khud update. MAD1 Jinja har click pe naya HTML.

    Progressive frontend framework. Components, reactivity, directives.

    MAD2 SPA: ek index.html, Vue Router pages, Flask sirf JSON.

    Fayde: easy, SFC, docs. Vs React: templates HTML-like, course sikhata hai. Vs plain JS: baar-baar DOM mat chhedo.

    Example

    <!-- HelloWorld.vue -->
<template>
  <h1>{{ msg }}</h1>
</template>
<script>
export default { data() { return { msg: 'Hello' } } }
</script>

    Project example: Navbar.vue + views (Login, Dashboard). data() / setup() reactive. fetch APIs.

    Viva tipFayde: easy, SFC, reactivity. Vs React: chhota learning curve. Vs plain JS: UI state auto-update.

  3. 3
    Tree smth idr
    Times asked 2
    Official solution

    SimpleViva wrap-up hai. Short thanks + confirm submission ZIP latest hai.

  4. 4
    That's all I remember ig 1 2 more he had asked
    Times asked 2
    Official solution

    SimpleViva wrap-up hai. Short thanks + confirm submission ZIP latest hai.

Advice: He's pretty chill ig he was in call in bw but I didn't expect these questions coz it wasn't there in the sheets looks like he got a new set of questions be confident and stay truthful about ur implementation but not too honest atb
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  1. 1
    << Level2 Viva
    Times asked 2
    Official solution

    SimpleLevel = viva difficulty band. Level 1 usually demo + basics; higher pe live coding + deeper theory.

    Viva tipJo level assign hai uske hisaab se demo + theory ready rakho.

  2. 2
    - Demo of the application
    Times asked 1
    Official solution

    SimpleDemo script pehle se practice: 5–7 min, Admin + User roles, saare mandatory features.

    Suggested flow1) Register/login user
    2) Admin login — CRUD
    3) Approval/blacklist
    4) Booking/apply + edge case
    5) Search
    6) Logout

    Viva tipBolte-bolte dikhao. Code tab kholna jab poochhein.

  3. 3
    - Vuex (I had used pinia for state management)
    Times asked 2
    Official solution

    SimplePinia naya store: mutations nahi, seedha state. Vue 3 recommended.

    defineStore. Vuex vs Pinia: naya project Pinia. Purana Vuex valid.

    Component = reusable UI block (Navbar, Card). Props parent→child data, emit child→parent event. Slots parent HTML inner content.

    computed cache + reactive derive (filtered list). watch side-effect (query change pe API). methods events. ref() primitive, reactive() object. Vuex/Pinia global store; localStorage persist, store nahi.

    SFC: template + script + style ek .vue file. Parent-child exam favourite: list parent, row child :item + @delete.

    Project example: stores/user.js. Agar Vuex hai to Pinia ka naam mat lo unless used.

  4. 4
    then some other theory question
    Times asked 2
    Official solution

    SimpleTheory = concepts: ORM, MVC, auth vs authz, Jinja inheritance, sessions. 1-line def + project example.

  5. 5
    -- Code Changes
    Times asked 2
    Official solution

    Yeh MAD-1 viva question tumhare project ke context se linked hai. Short answer is structure se do:

    Pehle 1 line definition/purpose, phir tumhare project ka example, phir chhota code/flow.

    Typical Flask flowBrowser request → @app.route controller → SQLAlchemy model/DB → Jinja template response.

    Auth: session['user_id'] + role check. CRUD: add/commit, query.all, field update, delete.
    Live change maange to: related model → route → template, phir browser refresh karke dikhao.

    Example (generic create):
    obj = Model(name=request.form.get('name'))

    db.session.add(obj); db.session.commit()
return redirect(url_for('list_view'))
  6. 6
    - Make the parking lot name case sensitive so it given an error (Like python treats uppercase and lowercase different like IITM and iitm is different but the name is same, so I implemented that.)
    Times asked 2
    Official solution

    SimpleProject overview: problem → roles → main entities → key flows (register, book, admin approve).

    Viva tip1 minute elevator pitch ready rakho, phir demo.

Advice: Chill proctor, theory should be good, go through your code thoroughly.
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  1. 1
    types of data binding
    Times asked 2
    Official solution

    SimpleMustache {{ }}, v-bind attrs, v-model forms, v-html careful.

    Data binding in Vue.

    Pehle 1-line definition, phir related MAD2 layer (Vue SFC / Flask route / models.py / tasks.py / Redis).

    4-line formula: input kahan se aaya, auth/validation kaunsa, DB ya cache ya Celery, kya return.

    Related mix mat karo — cache ≠ Celery, authentication ≠ authorization, v-if ≠ v-show, Beat ≠ Worker. Follow-up ke liye ek difference ready rakho.

    Project example: Form + text + image.

    Project example: Form + text + image.

  2. 2
    how to pass data from one component to another
    Times asked 2
    Official solution

    SimpleCode explain formula: input kya aaya → auth/validation → DB change → response/UI.

    Viva tipFunction signature + 3-4 important lines + edge case.

  3. 3
    make an edit such that two lots cannot have the same name (case insensitive)
    Times asked 2
    Official solution

    SimpleLive UI change: relevant CSS/HTML template kholo — color, margin, flex, bootstrap class. Save + hard refresh.

    Example

    /* button red */
.btn-primary { background: red; }

/* center navbar item */
.navbar { justify-content: center; }

    Viva tipDevTools se pehle try, phir file mein permanent change.

Advice: good and patient proctor. viva lasted for 30 minutes.
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  1. 1
    - Verify Student id - Show the demo - Show backend Jobs - Qustions
    Times asked 2
    Official solution

    SimpleCamera pe clearly college/IITM ID dikhao — naam aur photo match hone chahiye.

    Viva tipPehle se ID haath mein rakho, glare mat aane do. Iske baad GitHub + project run.

  2. 2
    What is VueX? 6 CLI vs CDN?
    Times asked 1
    Official solution

    SimpleCDN = Vue script tag se, jaise pen drive. CLI/Vite = poori factory (SFC, npm, bundle).

    CDN: no build, chhote apps, exam PC pe Node nahi to bhi chal. Weak: no .vue compile, 3rd-party cache, scale/team.

    CLI/Vite: Single File Components, env, code-split, production dist/. Scalable.

    Examiner 'which + why' — jo use kiya wahi justify, doosra naam rato mat.

    Example

    <!-- CDN -->
<script src="https://unpkg.com/vue@3/dist/vue.global.js"></script>

# Vite
npm run dev
npm run build

    Project example: CDN: index.html unpkg vue. CLI: package.json, npm run serve / vite.

    Viva tipCDN scalable large teams ke liye weak (no SFC compile, caching 3rd party). Examiner 'which + why' poochta hai — jo use kiya wahi justify karo.

  3. 3
    Show models I was already having unique constraint in my Student model so he asked me if uniques means case sensitivity or not then if user enter for eg Mad 1 and then mad 1, it should raise the error .
    Times asked 2
    Official solution

    Simplemodels.py = har table ki class: columns, PK/FK, relationships. Yeh Model layer hai.

    Suggested flow1) Classes list karo
    2) Har table ka kaam 1 line
    3) Relationships (1-M / M-M)
    4) Constraints (unique, nullable)

    Example

    class Lot(db.Model):
    id = db.Column(db.Integer, primary_key=True)
    name = db.Column(db.String(80), nullable=False)
    spots = db.relationship('Spot', backref='lot', lazy=True)
Advice: One thing i understood about this proctor that, he is straight forward and he almost has a fix set of questions to ask as mentioned under his response sheet. No follow up questions asked and if one questions gets over he'll have another question ready in almost same order as mentioned by other the students. so i was not able to change the code, i tried some logic here and there, almost got the output correct but it was not correct. So he just asked me to leave it and dont take stress. then he was telling his was of evaluation. so basically he wants to check if the student has completed or knows overall thing of an application, and not just completing the requirements. many students just complete the requirements, but the aim of these projects are to make us industry ready. (but tbh since i am doing dual degree, i wont invest much of my time creating basic crud app, because my logic is already good, anyways hope this review is helpful for other students)
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  1. 1
    first he started with my introduction
    Times asked 2
    Official solution

    Simple30 second: naam, degree, project kya hai, stack (Flask + Jinja + SQLAlchemy + SQLite).

    Example

    Main Priya, IITM BS. MAD1 mein parking/ticket app — Flask backend, Jinja templates, session login, SQLite.
  2. 2
    then here told me to demonstrate core functionalityies he even saw my backed jobs as well
    Times asked 2
    Official solution

    SimpleDemo script pehle se practice: 5–7 min, Admin + User roles, saare mandatory features.

    Suggested flow1) Register/login user
    2) Admin login — CRUD
    3) Approval/blacklist
    4) Booking/apply + edge case
    5) Search
    6) Logout

    Viva tipBolte-bolte dikhao. Code tab kholna jab poochhein.

  3. 3
    he asked my whats vue.js
    Times asked 2
    Official solution

    SimpleVue = UI ka smart assistant. Data badlo, screen khud update. MAD1 Jinja har click pe naya HTML.

    Progressive frontend framework. Components, reactivity, directives.

    MAD2 SPA: ek index.html, Vue Router pages, Flask sirf JSON.

    Fayde: easy, SFC, docs. Vs React: templates HTML-like, course sikhata hai. Vs plain JS: baar-baar DOM mat chhedo.

    Example

    <!-- HelloWorld.vue -->
<template>
  <h1>{{ msg }}</h1>
</template>
<script>
export default { data() { return { msg: 'Hello' } } }
</script>

    Project example: Navbar.vue + views (Login, Dashboard). data() / setup() reactive. fetch APIs.

    Viva tipFayde: easy, SFC, reactivity. Vs React: chhota learning curve. Vs plain JS: UI state auto-update.

  4. 4
    whats difference in cdn cli vue
    Times asked 2
    Official solution

    SimpleCDN = Vue script tag se, jaise pen drive. CLI/Vite = poori factory (SFC, npm, bundle).

    CDN: no build, chhote apps, exam PC pe Node nahi to bhi chal. Weak: no .vue compile, 3rd-party cache, scale/team.

    CLI/Vite: Single File Components, env, code-split, production dist/. Scalable.

    Examiner 'which + why' — jo use kiya wahi justify, doosra naam rato mat.

    Example

    <!-- CDN -->
<script src="https://unpkg.com/vue@3/dist/vue.global.js"></script>

# Vite
npm run dev
npm run build

    Project example: CDN: index.html unpkg vue. CLI: package.json, npm run serve / vite.

    Viva tipCDN scalable large teams ke liye weak (no SFC compile, caching 3rd party). Examiner 'which + why' poochta hai — jo use kiya wahi justify karo.

  5. 5
    whats data binding
    Times asked 2
    Official solution

    SimpleMustache {{ }}, v-bind attrs, v-model forms, v-html careful.

    Data binding in Vue.

    Pehle 1-line definition, phir related MAD2 layer (Vue SFC / Flask route / models.py / tasks.py / Redis).

    4-line formula: input kahan se aaya, auth/validation kaunsa, DB ya cache ya Celery, kya return.

    Related mix mat karo — cache ≠ Celery, authentication ≠ authorization, v-if ≠ v-show, Beat ≠ Worker. Follow-up ke liye ek difference ready rakho.

    Project example: Form + text + image.

    Project example: Form + text + image.

  6. 6
    how you can pass data from components
    Times asked 2
    Official solution

    SimpleCode explain formula: input kya aaya → auth/validation → DB change → response/UI.

    Viva tipFunction signature + 3-4 important lines + edge case.

  7. 7
    sql aggregate function
    Times asked 2
    Official solution

    SimpleCOUNT SUM AVG MIN MAX. Dashboard stats.

    SQL aggregate functions.

    Pehle 1-line definition, phir related MAD2 layer (Vue SFC / Flask route / models.py / tasks.py / Redis).

    4-line formula: input kahan se aaya, auth/validation kaunsa, DB ya cache ya Celery, kya return.

    Related mix mat karo — cache ≠ Celery, authentication ≠ authorization, v-if ≠ v-show, Beat ≠ Worker. Follow-up ke liye ek difference ready rakho.

    Example

    db.session.query(func.count(Booking.id)).scalar()

    Project example: func.count(Booking.id).

  8. 8
    difference in 1-way and 2-way binding
    Times asked 2
    Official solution

    SimpleUngli rakhe to 4-line formula — panic ki jagah structure.

    1) File ka role: model / Flask route / Vue SFC / celery task / config
    2) Input kahan: JSON, params, token, props, $route
    3) Kya kaam: query, cache, validation, .delay()
    4) Output: jsonify, this.items, email, redirect

    Unknown keyword: import, decorator, if, commit — har ka reason. Bluff mat.

    Suggested flow1) Kaunsi layer?
    2) Input?
    3) DB/cache/task?
    4) Response/UI?

    Project example: Booking POST: jwt, seats check, commit, 201, Vue list push.

    Viva tipUnknown keyword: import, decorator, if, commit — har ka reason. Panic mat.

  9. 9
    webhooks
    Times asked 2
    Official solution

    SimpleCode explain formula: input kya aaya → auth/validation → DB change → response/UI.

    Viva tipFunction signature + 3-4 important lines + edge case.

  10. 10
    lifecycle of vue js
    Times asked 2
    Official solution

    SimpleLifecycle = component ki zindagi ke stages. API call tab jab DOM ready ho — mounted.

    created: instance bani, this data, DOM nahi. mounted/onMounted: page pe aa gaya — fetch, Chart.js, setInterval.
    updated: data change ke baad. unmounted: cleanup (clearInterval) warna memory leak.

    Dashboards onMounted isliye: canvas/API tab valid. created mein $el nahi.

    Composition: onMounted(() => {}) setup ke andar.

    Example

    export default {
  async mounted() {
    const r = await fetch('/api/venues')
    this.venues = await r.json()
  }
}

    Project example: Venues.vue mounted fetch list. Clock component unmounted pe interval clear.

    Viva tipcreated: data setup, DOM nahi. mounted/onMounted: $el mil gaya — fetch yahi. Dashboards isliye onMounted use karti hain.

  11. 11
    and a simple change in code( my quiz score section didn't has Quiz Name Column he asked me to add it )
    Times asked 2
    Official solution

    SimpleViva wrap-up hai. Short thanks + confirm submission ZIP latest hai.

Advice: its was a good viva, just follow the all sheets question and you are good to go
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  1. 1
    after complete demonstration, he asked me about Vue.js
    Times asked 2
    Official solution

    SimpleDemo script pehle se practice: 5–7 min, Admin + User roles, saare mandatory features.

    Suggested flow1) Register/login user
    2) Admin login — CRUD
    3) Approval/blacklist
    4) Booking/apply + edge case
    5) Search
    6) Logout

    Viva tipBolte-bolte dikhao. Code tab kholna jab poochhein.

  2. 2
    Props, slot and emits and the other questions that are mentioned there this sheet.
    Times asked 2
    Official solution

    SimpleProps parent→child values. Emit child→parent signal. Basic communication.

    Difference props and emit.

    Component = reusable UI block (Navbar, Card). Props parent→child data, emit child→parent event. Slots parent HTML inner content.

    computed cache + reactive derive (filtered list). watch side-effect (query change pe API). methods events. ref() primitive, reactive() object. Vuex/Pinia global store; localStorage persist, store nahi.

    SFC: template + script + style ek .vue file. Parent-child exam favourite: list parent, row child :item + @delete.

    Project example: Card props venue emit select.

  3. 3
    asked me to change in the code so that a sponsor can't create another campaign with the same name. He helped me in doing this when I was facing problems.
    Times asked 2
    Official solution

    SimpleViva wrap-up hai. Short thanks + confirm submission ZIP latest hai.

Advice: Very good proctor that everyone would like him. Very polite and supportive as well as professional. Just prepare from this sheet and you will be all set to go. A perfect experience at the end of Web development project 😊
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  1. 1
    Vuex - I somewhat struggled in this part, but he was chill about.
    Times asked 2
    Official solution

    SimpleVue = UI ka smart assistant. Data badlo, screen khud update. MAD1 Jinja har click pe naya HTML.

    Progressive frontend framework. Components, reactivity, directives.

    MAD2 SPA: ek index.html, Vue Router pages, Flask sirf JSON.

    Fayde: easy, SFC, docs. Vs React: templates HTML-like, course sikhata hai. Vs plain JS: baar-baar DOM mat chhedo.

    Example

    <!-- HelloWorld.vue -->
<template>
  <h1>{{ msg }}</h1>
</template>
<script>
export default { data() { return { msg: 'Hello' } } }
</script>

    Project example: Navbar.vue + views (Login, Dashboard). data() / setup() reactive. fetch APIs.

    Viva tipFayde: easy, SFC, reactivity. Vs React: chhota learning curve. Vs plain JS: UI state auto-update.

Advice: He is chill, nothing to worry about. Other students who had the same proctor also said the same. Just study about everything about your project, and the questions I and other students mentioned in this sheet, then viola, you aced.
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  1. 1
    Introduction
    Times asked 5
    Official solution

    Simple30 second: naam, degree, project kya hai, stack (Flask + Jinja + SQLAlchemy + SQLite).

    Example

    Main Priya, IITM BS. MAD1 mein parking/ticket app — Flask backend, Jinja templates, session login, SQLite.
  2. 2
    How binding works in Vue
    Times asked 2
    Official solution

    SimpleCode explain formula: input kya aaya → auth/validation → DB change → response/UI.

    Viva tipFunction signature + 3-4 important lines + edge case.

  3. 3
    Coding Question - How the customer is able to book a service on the same date, so he asked to implement this. The customer should not be able to book a service on the same date as the date of request, and for the same service as well.
    Times asked 2
    Official solution

    SimpleLive coding: notepad/editor mein chhota Flask route / Jinja loop / model field. Calm raho, run karke dikhao.

Advice: All questions were from the sheet only. Study all the questions asked by the proctor.
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  1. 1
    greetings & identification formalities Complete Demonstration
    Times asked 2
    Official solution

    SimpleORM = Object Relational Mapping. Tables → Python classes. Raw SQL kam likhte ho.

    Example

    class User(db.Model):
    id = db.Column(db.Integer, primary_key=True)
    email = db.Column(db.String(120), unique=True)

User.query.get(5)  # SELECT ... WHERE id=5
  2. 2
    Vue Lifecycle hooks
    Times asked 1
    Official solution

    SimpleLifecycle = component ki zindagi ke stages. API call tab jab DOM ready ho — mounted.

    created: instance bani, this data, DOM nahi. mounted/onMounted: page pe aa gaya — fetch, Chart.js, setInterval.
    updated: data change ke baad. unmounted: cleanup (clearInterval) warna memory leak.

    Dashboards onMounted isliye: canvas/API tab valid. created mein $el nahi.

    Composition: onMounted(() => {}) setup ke andar.

    Example

    export default {
  async mounted() {
    const r = await fetch('/api/venues')
    this.venues = await r.json()
  }
}

    Project example: Venues.vue mounted fetch list. Clock component unmounted pe interval clear.

    Viva tipcreated: data setup, DOM nahi. mounted/onMounted: $el mil gaya — fetch yahi. Dashboards isliye onMounted use karti hain.

  3. 3
    v-directives and binding in VUE
    Times asked 2
    Official solution

    SimpleVue = UI ka smart assistant. Data badlo, screen khud update. MAD1 Jinja har click pe naya HTML.

    Progressive frontend framework. Components, reactivity, directives.

    MAD2 SPA: ek index.html, Vue Router pages, Flask sirf JSON.

    Fayde: easy, SFC, docs. Vs React: templates HTML-like, course sikhata hai. Vs plain JS: baar-baar DOM mat chhedo.

    Example

    <!-- HelloWorld.vue -->
<template>
  <h1>{{ msg }}</h1>
</template>
<script>
export default { data() { return { msg: 'Hello' } } }
</script>

    Project example: Navbar.vue + views (Login, Dashboard). data() / setup() reactive. fetch APIs.

    Viva tipFayde: easy, SFC, reactivity. Vs React: chhota learning curve. Vs plain JS: UI state auto-update.

  4. 4
    CLI vs CDN (definition and why did u use it?)
    Times asked 2
    Official solution

    SimpleCDN = Vue script tag se, jaise pen drive. CLI/Vite = poori factory (SFC, npm, bundle).

    CDN: no build, chhote apps, exam PC pe Node nahi to bhi chal. Weak: no .vue compile, 3rd-party cache, scale/team.

    CLI/Vite: Single File Components, env, code-split, production dist/. Scalable.

    Examiner 'which + why' — jo use kiya wahi justify, doosra naam rato mat.

    Example

    <!-- CDN -->
<script src="https://unpkg.com/vue@3/dist/vue.global.js"></script>

# Vite
npm run dev
npm run build

    Project example: CDN: index.html unpkg vue. CLI: package.json, npm run serve / vite.

    Viva tipCDN scalable large teams ke liye weak (no SFC compile, caching 3rd party). Examiner 'which + why' poochta hai — jo use kiya wahi justify karo.

  5. 5
    Coding Challenge: for any given sponsor "campaign name" shouldnt be same.
    Times asked 2
    Official solution

    SimpleChallenges honestly: relationships/cascade, session bugs, overbooking race, CSS layout, deploy. Seekha kya — woh bold karo.

Advice: Keep calm, and study from the sheet
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  1. 1
    Give Demo
    Times asked 4
    Official solution

    SimpleDemo script pehle se practice: 5–7 min, Admin + User roles, saare mandatory features.

    Suggested flow1) Register/login user
    2) Admin login — CRUD
    3) Approval/blacklist
    4) Booking/apply + edge case
    5) Search
    6) Logout

    Viva tipBolte-bolte dikhao. Code tab kholna jab poochhein.

  2. 2
    Told me to show add one more same service category which I added in the past. But my system added the same service so he told me that same service category should not be duplicated.
    Times asked 2
    Official solution

    SimpleViva wrap-up hai. Short thanks + confirm submission ZIP latest hai.

Advice: He is very chill but he can ask you more questions
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  1. 1
    what r u doing apart from this degree
    Times asked 1
    Official solution

    SimpleShort honest job/family/other. Why degree 20s then project wapas.

    Don't ramble.

    Pehle 1-line definition, phir related MAD2 layer (Vue SFC / Flask route / models.py / tasks.py / Redis).

    4-line formula: input kahan se aaya, auth/validation kaunsa, DB ya cache ya Celery, kya return.

    Related mix mat karo — cache ≠ Celery, authentication ≠ authorization, v-if ≠ v-show, Beat ≠ Worker. Follow-up ke liye ek difference ready rakho.

    Project example: Bridge to MAD2 skills.

    Project example: Bridge to MAD2 skills.

  2. 2
    props and emit
    Times asked 2
    Official solution

    SimpleProps parent→child values. Emit child→parent signal. Basic communication.

    Difference props and emit.

    Component = reusable UI block (Navbar, Card). Props parent→child data, emit child→parent event. Slots parent HTML inner content.

    computed cache + reactive derive (filtered list). watch side-effect (query change pe API). methods events. ref() primitive, reactive() object. Vuex/Pinia global store; localStorage persist, store nahi.

    SFC: template + script + style ek .vue file. Parent-child exam favourite: list parent, row child :item + @delete.

    Project example: Card props venue emit select.

  3. 3
    to not let user create 2 campaigns of same name
    Times asked 2
    Official solution

    SimpleDemo script pehle se practice: 5–7 min, Admin + User roles, saare mandatory features.

    Suggested flow1) Register/login user
    2) Admin login — CRUD
    3) Approval/blacklist
    4) Booking/apply + edge case
    5) Search
    6) Logout

    Viva tipBolte-bolte dikhao. Code tab kholna jab poochhein.

  4. 4
    security implemented
    Times asked 1
    Official solution

    SimpleViva wrap-up hai. Short thanks + confirm submission ZIP latest hai.

Advice: Hes pretty chill so you can chill too
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  1. 1
    Explain binding in vue
    Times asked 2
    Official solution

    SimpleCode explain formula: input kya aaya → auth/validation → DB change → response/UI.

    Viva tipFunction signature + 3-4 important lines + edge case.

  2. 2
    Asked about which degree I'm persuing apart from this
    Times asked 2
    Official solution

    Simple30 second: naam, degree, project kya hai, stack (Flask + Jinja + SQLAlchemy + SQLite).

    Example

    Main Priya, IITM BS. MAD1 mein parking/ticket app — Flask backend, Jinja templates, session login, SQLite.
Advice: Overall he was a good proctor
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  1. 1
    What have you used for security
    Times asked 2
    Official solution

    SimplePassword DB mein plain text mat rakho — hash store karo jo reverse nahi hota.

    from werkzeug.security import generate_password_hash, check_password_hash
user.password = generate_password_hash(request.form['password'])
check_password_hash(user.password, form_password)

    Hashing ≠ encryption. Leak pe bhi original password nahi milta (easy passwords rainbow table se — isliye salt + strong hash).
    Column String(200) kyunki hash lamba hota hai. unique=True password pe mat lagao.

Advice: do all the questions in the sheet for th same proctor and have thorough knowledge of your code.
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  1. 1
    Basis overview is like he will ask questions related to vue and backend , though questions are same as he asked above but still I am writing.
    Times asked 2
    Official solution

    SimpleVue = UI ka smart assistant. Data badlo, screen khud update. MAD1 Jinja har click pe naya HTML.

    Progressive frontend framework. Components, reactivity, directives.

    MAD2 SPA: ek index.html, Vue Router pages, Flask sirf JSON.

    Fayde: easy, SFC, docs. Vs React: templates HTML-like, course sikhata hai. Vs plain JS: baar-baar DOM mat chhedo.

    Example

    <!-- HelloWorld.vue -->
<template>
  <h1>{{ msg }}</h1>
</template>
<script>
export default { data() { return { msg: 'Hello' } } }
</script>

    Project example: Navbar.vue + views (Login, Dashboard). data() / setup() reactive. fetch APIs.

    Viva tipFayde: easy, SFC, reactivity. Vs React: chhota learning curve. Vs plain JS: UI state auto-update.

  2. 2
    What is Props , Slot, How to pass data from child to parent
    Times asked 2
    Official solution

    SimpleVue.js frontend framework — reactive UI components. MAD2 mein common, MAD1 optional.

    Component: reusable UI (Navbar.vue) + data + template.
    Props: parent → child data. Child → parent: $emit('update', val).
    Slots: parent child ke andar extra HTML daal sakta hai.
    Lifecycle: created (data setup), mounted (DOM ready — API call), updated, unmounted.
    v-model two-way bind. Vue Router SPA routes (routes.js). Vuex/Pinia global state; mutations sync change, actions async.
    Standalone component: khud ke saath compile, parent register kam.

  3. 3
    What is V-if and V-show?
    Times asked 2
    Official solution

    Simplev-if ghar se nikaal deta hai (DOM se). v-show sirf light band karta hai (display:none).

    v-if false → element exist hi nahi — costly create/destroy, lekin secret HTML DOM mein nahi.
    v-show → hamesha DOM, CSS hide, toggle tez.

    Rare / permission UI: v-if (admin panel). Dropdown bar-bar: v-show.

    : shorthand v-bind ka, v-if ka nahi.

    Example

    <div v-if="isAdmin">Admin panel</div>
<div v-show="open">Dropdown</div>

    Project example: Admin links v-if="role==='admin'". FAQ accordion v-show="open".

    Viva tipSecurity ke liye sirf v-if kaafi nahi — API 403 bhi chahiye.

  4. 4
    He will ask for showing celery work.
    Times asked 2
    Official solution

    SimpleCelery = background naukri. HTTP request ko 10 second email bhejne ke liye mat rokna.

    Distributed task queue: aap function ko abhi nahi, worker process mein later/retry/schedule pe chalaate ho.

    MAD2 typical jobs: daily reminder mail, monthly HTML report, user-triggered CSV export.

    Web request 200ms hona chahiye. 10,000 emails request thread mein = timeout. Worker alag CPU pe kaam kare.

    Redis broker chahiye. Beat alag process schedule ke liye.

    Example

    @celery.task
def daily_reminder():
    for u in User.query.filter_by(active=True):
        send_mail(u.email, 'Book something today!')

    Project example: User Export click → 202 Accepted. Worker CSV + email. Daily 6pm Beat reminder.

    Viva tipWorker + Redis bina Beat ke user-triggered chalega. Scheduled jobs ke liye Beat bhi chahiye.

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  1. 1
    Are you using CLI or CDN?
    Times asked 2
    Official solution

    SimpleCDN = Vue script tag se, jaise pen drive. CLI/Vite = poori factory (SFC, npm, bundle).

    CDN: no build, chhote apps, exam PC pe Node nahi to bhi chal. Weak: no .vue compile, 3rd-party cache, scale/team.

    CLI/Vite: Single File Components, env, code-split, production dist/. Scalable.

    Examiner 'which + why' — jo use kiya wahi justify, doosra naam rato mat.

    Example

    <!-- CDN -->
<script src="https://unpkg.com/vue@3/dist/vue.global.js"></script>

# Vite
npm run dev
npm run build

    Project example: CDN: index.html unpkg vue. CLI: package.json, npm run serve / vite.

    Viva tipCDN scalable large teams ke liye weak (no SFC compile, caching 3rd party). Examiner 'which + why' poochta hai — jo use kiya wahi justify karo.

  2. 2
    What is ORM and are you using it?
    Times asked 2
    Official solution

    SimpleORM = Object Relational Mapping. Tables → Python classes. Raw SQL kam likhte ho.

    Example

    class User(db.Model):
    id = db.Column(db.Integer, primary_key=True)
    email = db.Column(db.String(120), unique=True)

User.query.get(5)  # SELECT ... WHERE id=5
  3. 3
    What is ORM's advantage?
    Times asked 2
    Official solution

    SimpleORM = Object Relational Mapping. Tables → Python classes. Raw SQL kam likhte ho.

    Example

    class User(db.Model):
    id = db.Column(db.Integer, primary_key=True)
    email = db.Column(db.String(120), unique=True)

User.query.get(5)  # SELECT ... WHERE id=5
  4. 4
    Changed the code - Add table to one page instead of Card view. Debugged the model.
    Times asked 2
    Official solution

    Simplemodels.py = har table ki class: columns, PK/FK, relationships. Yeh Model layer hai.

    Suggested flow1) Classes list karo
    2) Har table ka kaam 1 line
    3) Relationships (1-M / M-M)
    4) Constraints (unique, nullable)

    Example

    class Lot(db.Model):
    id = db.Column(db.Integer, primary_key=True)
    name = db.Column(db.String(80), nullable=False)
    spots = db.relationship('Spot', backref='lot', lazy=True)
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  1. 1
    Entire demo of the project, then he asked me to change the song play button.
    Times asked 2
    Official solution

    SimpleDemo script pehle se practice: 5–7 min, Admin + User roles, saare mandatory features.

    Suggested flow1) Register/login user
    2) Admin login — CRUD
    3) Approval/blacklist
    4) Booking/apply + edge case
    5) Search
    6) Logout

    Viva tipBolte-bolte dikhao. Code tab kholna jab poochhein.

  2. 2
    How many celery tasks have you implemented?
    Times asked 1
    Official solution

    SimpleCode explain formula: input kya aaya → auth/validation → DB change → response/UI.

    Viva tipFunction signature + 3-4 important lines + edge case.

  3. 3
    Data binding. V- model and v- bind.
    Times asked 2
    Official solution

    Simplemodels.py = har table ki class: columns, PK/FK, relationships. Yeh Model layer hai.

    Suggested flow1) Classes list karo
    2) Har table ka kaam 1 line
    3) Relationships (1-M / M-M)
    4) Constraints (unique, nullable)

    Example

    class Lot(db.Model):
    id = db.Column(db.Integer, primary_key=True)
    name = db.Column(db.String(80), nullable=False)
    spots = db.relationship('Spot', backref='lot', lazy=True)
  4. 4
    Template inheritance.
    Times asked 2
    Official solution

    Simpleextends poora layout inherit karta hai, include chhota piece insert karta hai.

    extends: child page base.html ka structure use karti hai, blocks override karti hai. Ek hi parent.
    include: navbar.html / footer.html jahan chaho insert. Kai baar use ho sakta hai.

    base.html:

    {% block content %}{% endblock %}

home.html:
{% extends 'base.html' %}
{% block content %}<h1>Home</h1>{% endblock %}

{% include 'navbar.html' %}  → navbar har page pe

    Fayda: header/footer ek jagah, change once — saari pages update. MAD1 mein almost har project use karta hai.

  5. 5
    Local storage vs session storage.
    Times asked 1
    Official solution

    SimpleMAD1 mein usually session-based auth: login pe session['user_id'], har request pe verify.

    Example

    session['user_id'] = user.id
uid = session.get('user_id')
user = User.query.get(uid)

    Viva tipSECRET_KEY set karo warna session insecure. logout pe session.clear().

  6. 6
    Overall good proctor. At last he gave some feedback.
    Times asked 2
    Official solution

    SimpleViva wrap-up hai. Short thanks + confirm submission ZIP latest hai.

  7. 7
    Most of the questions he asked were in this sheet.
    Times asked 2
    Official solution

    SimpleViva wrap-up hai. Short thanks + confirm submission ZIP latest hai.

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  1. 1
    1)First asked to demonstrate the app
    Times asked 2
    Official solution

    SimpleDemo script pehle se practice: 5–7 min, Admin + User roles, saare mandatory features.

    Suggested flow1) Register/login user
    2) Admin login — CRUD
    3) Approval/blacklist
    4) Booking/apply + edge case
    5) Search
    6) Logout

    Viva tipBolte-bolte dikhao. Code tab kholna jab poochhein.

  2. 2
    2)He asked to create a product with a existing product name and expiry date with a date of previous year. He said the product should not be created.
    Times asked 2
    Official solution

    SimpleViva wrap-up hai. Short thanks + confirm submission ZIP latest hai.

  3. 3
    3)He asked to buy a product with quantity greater than the stock and with negetive value.
    Times asked 2
    Official solution

    SimpleViva wrap-up hai. Short thanks + confirm submission ZIP latest hai.

  4. 4
    4)Then he asked to change some code.
    Times asked 2
    Official solution

    SimpleViva wrap-up hai. Short thanks + confirm submission ZIP latest hai.

  5. 5
    Then asked following questions:
    Times asked 2
    Official solution

    SimpleViva wrap-up hai. Short thanks + confirm submission ZIP latest hai.

  6. 6
    5)What is API?
    Times asked 1
    Official solution

    SimpleAPI = interface jisse systems baat karein. Web API usually JSON return karti hai.

    Example

    @app.route('/api/lots')
def api_lots():
    return jsonify([{'id': l.id, 'name': l.name} for l in Lot.query.all()])
  7. 7
    6)What is webhooks?
    Times asked 1
    Official solution

    SimpleCode explain formula: input kya aaya → auth/validation → DB change → response/UI.

    Viva tipFunction signature + 3-4 important lines + edge case.

  8. 8
    7)What are Lifecycle hooks?
    Times asked 1
    Official solution

    SimpleLifecycle = component ki zindagi ke stages. API call tab jab DOM ready ho — mounted.

    created: instance bani, this data, DOM nahi. mounted/onMounted: page pe aa gaya — fetch, Chart.js, setInterval.
    updated: data change ke baad. unmounted: cleanup (clearInterval) warna memory leak.

    Dashboards onMounted isliye: canvas/API tab valid. created mein $el nahi.

    Composition: onMounted(() => {}) setup ke andar.

    Example

    export default {
  async mounted() {
    const r = await fetch('/api/venues')
    this.venues = await r.json()
  }
}

    Project example: Venues.vue mounted fetch list. Clock component unmounted pe interval clear.

    Viva tipcreated: data setup, DOM nahi. mounted/onMounted: $el mil gaya — fetch yahi. Dashboards isliye onMounted use karti hain.

  9. 9
    8)What are v-directives?
    Times asked 1
    Official solution

    SimpleVue directive = special attr: v-if, v-for, v-model, v-bind, v-show — DOM ko declarative control.

  10. 10
    9)Difference between v-if and v-show?
    Times asked 1
    Official solution

    Simplev-if ghar se nikaal deta hai (DOM se). v-show sirf light band karta hai (display:none).

    v-if false → element exist hi nahi — costly create/destroy, lekin secret HTML DOM mein nahi.
    v-show → hamesha DOM, CSS hide, toggle tez.

    Rare / permission UI: v-if (admin panel). Dropdown bar-bar: v-show.

    : shorthand v-bind ka, v-if ka nahi.

    Example

    <div v-if="isAdmin">Admin panel</div>
<div v-show="open">Dropdown</div>

    Project example: Admin links v-if="role==='admin'". FAQ accordion v-show="open".

    Viva tipSecurity ke liye sirf v-if kaafi nahi — API 403 bhi chahiye.

  11. 11
    10)What are the methods of rest-api?
    Times asked 2
    Official solution

    SimplePehle 1-line definition, phir apne MAD1 project mein file dikhao, phir chhota example.

    Suggested flow1) Concept kya hai?
    2) Mere code mein kahan?
    3) Example / demo
    4) Edge case

    Example

    # related file: models.py / routes / template
# formula: request → check/auth → DB → render/redirect

    Viva tipExact line yaad nahi to honestly related part dikhao. Bluff mat karo.

  12. 12
    11)What is the difference between PUT & PATCH methods or PUT & POST?
    Times asked 2
    Official solution

    SimplePOST naya janam (har baar naya id). PUT poori photo replace. PATCH sticker chipkao.

    POST create, not idempotent. PUT full update, idempotent. PATCH partial.

    POST ki jagah PUT se REST semantics toot. GET typically no body.

    CRUD map: POST create, GET read, PUT/PATCH update, DELETE delete.

    Pehle 1-line definition, phir related MAD2 layer (Vue SFC / Flask route / models.py / tasks.py / Redis).

    4-line formula: input kahan se aaya, auth/validation kaunsa, DB ya cache ya Celery, kya return.

    Related mix mat karo — cache ≠ Celery, authentication ≠ authorization, v-if ≠ v-show, Beat ≠ Worker. Follow-up ke liye ek difference ready rakho.

    Example

    POST /api/venues
PUT  /api/venues/1   {all fields}
PATCH /api/venues/1 {only name}

    Project example: POST /api/venues create. PUT /venues/1 saari fields. PATCH sirf name.

  13. 13
    12)How many celery tasks have you implement?
    Times asked 2
    Official solution

    SimpleGino jo implement: generally reminder, monthly, export. Beat schedule dikhao.

    Don't claim 5 if 2.

    Celery Python ka distributed task queue — HTTP request ko 10s email/CSV ke liye mat rokna.

    Flow: Flask .delay() → Redis broker → Worker execute. Beat alag process hai (clock): crontab padhke due time pe queue mein daalta hai. Beat khud mail nahi bhejta; Worker haath hai.

    MAD2 typical: daily reminder (Beat), monthly report (Beat), user Export CSV (button, Beat nahi). JS async/await browser event loop hai, Celery server-side process — mix mat karo.

    Demo: tin terminals — redis-server, celery worker, celery beat — plus Flask. MailHog :8025 inbox. Result backend se task SUCCESS poll optional.

    Project example: Open beat dict count keys + extra delay() tasks.

  14. 14
    13)Show the monthly report emails
    Times asked 2
    Official solution

    SimpleLive jobs: Redis, worker, beat, crontab abhi, logs + email/CSV.

    Scheduled vs user-triggered dono dikhao. Missing feature honestly.

    Examiner 2 cheezein: simple desi line + tumhare project ki exact file.

    Pehle ID, GitHub, portal ZIP. Phir run: Redis + Flask + worker + beat + Vue. Feature demo: login, RBAC, cache hit/miss, Celery mail, search.

    Line pe ungli: input kahan, kaunsa check, query/cache/task, JSON/UI. Copilot band. Jo nahi kiya honestly bolo + kaise add karte.

    Suggested flow1) redis
    2) worker
    3) beat
    4) crontab now
    5) logs + MailHog

    Example

    CELERY_BEAT_SCHEDULE = {
  'daily-reminder': {
    'task': 'jobs.daily_reminder',
    'schedule': crontab(hour=18, minute=0),
  },
}

    Project example: Change schedule current time. MailHog. Export button 202.

  15. 15
    Thus, he ended the viva.
    Times asked 2
    Official solution

    SimpleViva wrap-up hai. Short thanks + confirm submission ZIP latest hai.

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  1. 1
    1.Started with demo of project, asked alot about every features. 2.what is celery? How it works? 3.What are SQL Constraints?
    Times asked 1
    Official solution

    SimpleDemo script pehle se practice: 5–7 min, Admin + User roles, saare mandatory features.

    Suggested flow1) Register/login user
    2) Admin login — CRUD
    3) Approval/blacklist
    4) Booking/apply + edge case
    5) Search
    6) Logout

    Viva tipBolte-bolte dikhao. Code tab kholna jab poochhein.

  2. 2
    There was a bug in my code, told me to fix it.
    Times asked 2
    Official solution

    SimplePehle 1-line definition, phir apne MAD1 project mein file dikhao, phir chhota example.

    Suggested flow1) Concept kya hai?
    2) Mere code mein kahan?
    3) Example / demo
    4) Edge case

    Example

    # related file: models.py / routes / template
# formula: request → check/auth → DB → render/redirect

    Viva tipExact line yaad nahi to honestly related part dikhao. Bluff mat karo.

  3. 3
    Asked to add a category with one of the existing name of category in the database. He told me this'll create a copy of category, this should not happen. While adding it should show a warning. ( Same for product also)
    Times asked 2
    Official solution

    SimpleViva wrap-up hai. Short thanks + confirm submission ZIP latest hai.

  4. 4
    Asked to set manufacture date to today's date and expiry date to yesterday's. This also should not work, it should give warning while adding or updating the product. 13.Asked about memcached and rediscached
    Times asked 2
    Official solution

    SimpleDono RAM cache. Redis zyada smart: lists, hashes, pub/sub, persistence, Celery broker.

    Memcached: simple key-value, yahi. Redis: data structures + expire + optional disk dump.

    MAD2 Redis choose — cache aur broker ek hi process. Memcached Celery nahi chalaata.

    Redis in-memory key-value store hai — fridge pe sticky note, poori kitchen (SQL database) har baar mat kholo.

    MAD2 mein Redis do kaam: (1) cache — same venues/shows/dashboard JSON baar-baar DB se nahi (2) Celery broker — Flask task queue mein daalta hai, worker uthata hai.

    Flow: cache.get(key) → hit pe return, miss pe SQLAlchemy + SET with timeout. Admin write ke baad cache.delete, warna stale list.

    Source of truth database hi hai. Redis crash/band = cache miss (app chalni chahiye) + queue ruk sakti hai. Important bookings sirf Redis mein mat rakho.

    Alag: Redis ≠ Memcached (Celery broker nahi). Redis ≠ localStorage (woh browser). redis-cli ping → PONG viva proof.

    Project example: Tumhare config mein CACHE_TYPE RedisCache, CELERY broker redis://. Memcached nahi.

    Viva tipMAD2 mein Redis isliye — cache + broker ek hi tool. Memcached Celery nahi chalaata.

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  1. 1
    First he asked for ID card.
    Times asked 2
    Official solution

    SimpleCamera pe clearly college/IITM ID dikhao — naam aur photo match hone chahiye.

    Viva tipPehle se ID haath mein rakho, glare mat aane do. Iske baad GitHub + project run.

  2. 2
    Full demonstration of the project.
    Times asked 3
    Official solution

    SimpleDemo script pehle se practice: 5–7 min, Admin + User roles, saare mandatory features.

    Suggested flow1) Register/login user
    2) Admin login — CRUD
    3) Approval/blacklist
    4) Booking/apply + edge case
    5) Search
    6) Logout

    Viva tipBolte-bolte dikhao. Code tab kholna jab poochhein.

  3. 3
    Then he randomly instructed to implement a simple feature. (like adding a button or changing the color etc..)
    Times asked 2
    Official solution

    SimpleViva wrap-up hai. Short thanks + confirm submission ZIP latest hai.

  4. 4
    What are ​​​Built-in Directives ?
    Times asked 1
    Official solution

    SimpleVue directive = special attr: v-if, v-for, v-model, v-bind, v-show — DOM ko declarative control.

  5. 5
    show me the code where you have implemented celery.
    Times asked 2
    Official solution

    SimpleCelery = background naukri. HTTP request ko 10 second email bhejne ke liye mat rokna.

    Distributed task queue: aap function ko abhi nahi, worker process mein later/retry/schedule pe chalaate ho.

    MAD2 typical jobs: daily reminder mail, monthly HTML report, user-triggered CSV export.

    Web request 200ms hona chahiye. 10,000 emails request thread mein = timeout. Worker alag CPU pe kaam kare.

    Redis broker chahiye. Beat alag process schedule ke liye.

    Example

    @celery.task
def daily_reminder():
    for u in User.query.filter_by(active=True):
        send_mail(u.email, 'Book something today!')

    Project example: User Export click → 202 Accepted. Worker CSV + email. Daily 6pm Beat reminder.

    Viva tipWorker + Redis bina Beat ke user-triggered chalega. Scheduled jobs ke liye Beat bhi chahiye.

  6. 6
    show me the data models you have used. The proctor was friendly enough. He will even give his suggestions at the end :)
    Times asked 2
    Official solution

    Simplemodels.py = har table ki class: columns, PK/FK, relationships. Yeh Model layer hai.

    Suggested flow1) Classes list karo
    2) Har table ka kaam 1 line
    3) Relationships (1-M / M-M)
    4) Constraints (unique, nullable)

    Example

    class Lot(db.Model):
    id = db.Column(db.Integer, primary_key=True)
    name = db.Column(db.String(80), nullable=False)
    spots = db.relationship('Spot', backref='lot', lazy=True)
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  1. 1
    what is flask
    Times asked 1
    Official solution

    SimpleFlask Python ka micro web framework hai — routes, templates, request/response handle karta hai.

    from flask import Flask
app = Flask(__name__)
@app.route('/')
def home():
    return 'Hello'
app.run(debug=True)  # default port 5000

    __name__ se Flask ko pata chalta hai templates/static kahan se load karni hai. Hataoge to resource paths toot sakte hain.

    Faydesimple, flexible, MAD1 syllabus. Nuksaan: bade features (admin, auth) khud jodne padte hain.

    app.run() development server start karta hai. Production mein gunicorn/waitress.
  2. 2
    what is vue
    Times asked 2
    Official solution

    SimpleVue = UI ka smart assistant. Data badlo, screen khud update. MAD1 Jinja har click pe naya HTML.

    Progressive frontend framework. Components, reactivity, directives.

    MAD2 SPA: ek index.html, Vue Router pages, Flask sirf JSON.

    Fayde: easy, SFC, docs. Vs React: templates HTML-like, course sikhata hai. Vs plain JS: baar-baar DOM mat chhedo.

    Example

    <!-- HelloWorld.vue -->
<template>
  <h1>{{ msg }}</h1>
</template>
<script>
export default { data() { return { msg: 'Hello' } } }
</script>

    Project example: Navbar.vue + views (Login, Dashboard). data() / setup() reactive. fetch APIs.

    Viva tipFayde: easy, SFC, reactivity. Vs React: chhota learning curve. Vs plain JS: UI state auto-update.

  3. 3
    what is SQLAlchemy
    Times asked 3
    Official solution

    SimpleSQLAlchemy Python ka sabse popular ORM hai. MAD1 mein Flask-SQLAlchemy wrapper use hota hai.

    db = SQLAlchemy(app)

    class Book(db.Model):
    id = db.Column(db.Integer, primary_key=True)
    title = db.Column(db.String(80), nullable=False)

Operations: db.session.add(obj), .commit(), .delete(obj), Model.query.all(), .filter_by(), .get_or_404(id).
db.Model ek class hai (function nahi). db object engine + session + metadata hold karta hai.

    SQLALCHEMY_TRACK_MODIFICATIONS=False extra signals band karta hai, performance warning hatati hai.

  4. 4
    which all databases supported in SQLAlchemy
    Times asked 1
    Official solution

    SimpleSQLAlchemy MAD1 ka common ORM. Flask-SQLAlchemy wrapper se db.Model, db.session.

    Example

    user = User(email='a@b.com')
db.session.add(user)
db.session.commit()
users = User.query.filter_by(role='admin').all()
  5. 5
    what are sql aggregate function
    Times asked 1
    Official solution

    SimpleCOUNT SUM AVG MIN MAX. Dashboard stats.

    SQL aggregate functions.

    Pehle 1-line definition, phir related MAD2 layer (Vue SFC / Flask route / models.py / tasks.py / Redis).

    4-line formula: input kahan se aaya, auth/validation kaunsa, DB ya cache ya Celery, kya return.

    Related mix mat karo — cache ≠ Celery, authentication ≠ authorization, v-if ≠ v-show, Beat ≠ Worker. Follow-up ke liye ek difference ready rakho.

    Example

    db.session.query(func.count(Booking.id)).scalar()

    Project example: func.count(Booking.id).

  6. 6
    explain groupby in SQL
    Times asked 2
    Official solution

    SimpleCode explain formula: input kya aaya → auth/validation → DB change → response/UI.

    Viva tipFunction signature + 3-4 important lines + edge case.

  7. 7
    what is v-model
    Times asked 1
    Official solution

    Simplemodels.py = har table ki class: columns, PK/FK, relationships. Yeh Model layer hai.

    Suggested flow1) Classes list karo
    2) Har table ka kaam 1 line
    3) Relationships (1-M / M-M)
    4) Constraints (unique, nullable)

    Example

    class Lot(db.Model):
    id = db.Column(db.Integer, primary_key=True)
    name = db.Column(db.String(80), nullable=False)
    spots = db.relationship('Spot', backref='lot', lazy=True)
  8. 8
    what is v-bind
    Times asked 1
    Official solution

    Simplev-bind one-way: JS → HTML attribute. UI se data automatic nahi aata.

    Images src, disabled, class object, href. Colon shorthand.

    Dynamic class :class="{ active: isOn }".

    Directives Vue ke special attributes hain — HTML ko superpower: v-if/v-show, v-for, v-bind (:), v-on (@), v-model.

    v-if DOM se hataata/jodta. v-show sirf CSS display. Rare/permission: v-if. Bar-bar toggle: v-show. v-model two-way form. v-bind one-way JS→attribute.

    :key v-for pe zaroori warna Vue galat reuse. v-html XSS. Secret UI ke liye sirf v-if kaafi nahi — API 403 bhi.

    MAD1 Jinja server HTML. MAD2 yeh directives browser mein reactive.

    Example

    <img :src="posterUrl" :alt="title">
<button :disabled="loading">Save</button>
<div :class="{ active: isOn }">

    Project example: Poster :src="show.poster". Submit :disabled="loading".

  9. 9
    what is jsonify
    Times asked 1
    Official solution

    Simplejsonify Python dict/list ko JSON response + proper Content-Type deta hai.

    Example

    return jsonify(message='ok', count=3), 200
  10. 10
    what is API
    Times asked 3
    Official solution

    SimpleAPI = interface jisse systems baat karein. Web API usually JSON return karti hai.

    Example

    @app.route('/api/lots')
def api_lots():
    return jsonify([{'id': l.id, 'name': l.name} for l in Lot.query.all()])
  11. 11
    what is webhook
    Times asked 2
    Official solution

    SimpleCode explain formula: input kya aaya → auth/validation → DB change → response/UI.

    Viva tipFunction signature + 3-4 important lines + edge case.

  12. 12
    Exhaustive demo of project
    Times asked 2
    Official solution

    SimpleDemo script pehle se practice: 5–7 min, Admin + User roles, saare mandatory features.

    Suggested flow1) Register/login user
    2) Admin login — CRUD
    3) Approval/blacklist
    4) Booking/apply + edge case
    5) Search
    6) Logout

    Viva tipBolte-bolte dikhao. Code tab kholna jab poochhein.

  13. 13
    asked to modify the user's bookings summary to show number of tickets booked in a particular booking
    Times asked 1
    Official solution

    SimpleDemo script pehle se practice: 5–7 min, Admin + User roles, saare mandatory features.

    Suggested flow1) Register/login user
    2) Admin login — CRUD
    3) Approval/blacklist
    4) Booking/apply + edge case
    5) Search
    6) Logout

    Viva tipBolte-bolte dikhao. Code tab kholna jab poochhein.

  14. 14
    why ticket cancellation facility not implemented - as it was not core requirement
    Times asked 2
    Official solution

    SimpleJo miss hai honestly bolo + why (time). Agar examiner maange to quick plan: kahan add karoge.

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  1. 1
    Frameworks used
    Times asked 3
    Official solution

    SimpleStack bolo: Python, Flask, Jinja2, SQLAlchemy, SQLite, HTML/CSS/Bootstrap, maybe Chart.js.

  2. 2
    Vue CDN or CLI used
    Times asked 2
    Official solution

    SimpleCDN = Vue script tag se, jaise pen drive. CLI/Vite = poori factory (SFC, npm, bundle).

    CDN: no build, chhote apps, exam PC pe Node nahi to bhi chal. Weak: no .vue compile, 3rd-party cache, scale/team.

    CLI/Vite: Single File Components, env, code-split, production dist/. Scalable.

    Examiner 'which + why' — jo use kiya wahi justify, doosra naam rato mat.

    Example

    <!-- CDN -->
<script src="https://unpkg.com/vue@3/dist/vue.global.js"></script>

# Vite
npm run dev
npm run build

    Project example: CDN: index.html unpkg vue. CLI: package.json, npm run serve / vite.

    Viva tipCDN scalable large teams ke liye weak (no SFC compile, caching 3rd party). Examiner 'which + why' poochta hai — jo use kiya wahi justify karo.

  3. 3
    Asked me to display the total no of tickets left for the show in the booking screen
    Times asked 2
    Official solution

    Simplefunc.count / len(user.bookings). Header bookings page. Display total/current count. Tickets booked each summary.

    Show number tickets. Remaining tickets capacity-booked server compute.

    Pehle 1-line definition, phir related MAD2 layer (Vue SFC / Flask route / models.py / tasks.py / Redis).

    4-line formula: input kahan se aaya, auth/validation kaunsa, DB ya cache ya Celery, kya return.

    Related mix mat karo — cache ≠ Celery, authentication ≠ authorization, v-if ≠ v-show, Beat ≠ Worker. Follow-up ke liye ek difference ready rakho.

    Project example: serialize available. Don't trust client.

  4. 4
    Why didn’t I implement ticket cancellation option
    Times asked 2
    Official solution

    SimpleJo miss hai honestly bolo + why (time). Agar examiner maange to quick plan: kahan add karoge.

  5. 5
    Difference between Ajax and fetch
    Times asked 1
    Official solution

    SimpleAJAX idea hai, Fetch uska modern tool, Axios optional wrapper.

    Examiner difference poochhe: AJAX umbrella, fetch function, axios package.

    HTTP verbs + status REST ki zabaan. GET read, POST create, PUT replace, PATCH partial, DELETE remove. GET typically no body.

    Status: 200 OK, 201 created, 202 accepted (Celery task), 400 bad input, 401 no/bad token, 403 role nahi, 404 missing, 409 conflict (double book), 500 server.

    AJAX/fetch page reload nahi. SPA poori isi pe. Postman se bina Vue ke API prove karo — examiner pasand.

    Project example: Tumhare components fetch ya axios — jo file hai woh dikhao.

  6. 6
    Life cycle hooks
    Times asked 6
    Official solution

    SimpleVue = UI ka smart assistant. Data badlo, screen khud update. MAD1 Jinja har click pe naya HTML.

    Progressive frontend framework. Components, reactivity, directives.

    MAD2 SPA: ek index.html, Vue Router pages, Flask sirf JSON.

    Fayde: easy, SFC, docs. Vs React: templates HTML-like, course sikhata hai. Vs plain JS: baar-baar DOM mat chhedo.

    Example

    <!-- HelloWorld.vue -->
<template>
  <h1>{{ msg }}</h1>
</template>
<script>
export default { data() { return { msg: 'Hello' } } }
</script>

    Project example: Navbar.vue + views (Login, Dashboard). data() / setup() reactive. fetch APIs.

    Viva tipFayde: easy, SFC, reactivity. Vs React: chhota learning curve. Vs plain JS: UI state auto-update.

  7. 7
    Webhooks
    Times asked 1
    Official solution

    SimpleCode explain formula: input kya aaya → auth/validation → DB change → response/UI.

    Viva tipFunction signature + 3-4 important lines + edge case.

  8. 8
    Flask-security
    Times asked 2
    Official solution

    SimpleFlask lightweight Python web framework — routes, request/response, templates. MAD1 ka backend yahi hai.

    Example

    from flask import Flask
app = Flask(__name__)

@app.route('/')
def home():
    return 'Hello'

    Viva tipFlask micro hai: jo chahiye (DB, login, forms) khud jodte ho.

  9. 9
    How is JWT built
    Times asked 1
    Official solution

    SimpleCode explain formula: input kya aaya → auth/validation → DB change → response/UI.

    Viva tipFunction signature + 3-4 important lines + edge case.

  10. 10
    What's the backbone of your app
    Times asked 1
    Official solution

    SimpleMAD1 typical: Browser → Flask routes → validate/auth → SQLAlchemy → SQLite → Jinja response.

    Suggested flowRequest → Route → Auth check → DB → render_template / redirect

  11. 11
    If a record is deleted while autoincrement being turned on what will be the next index value
    Times asked 2
    Official solution

    SimplePehle 1-line definition, phir apne MAD1 project mein file dikhao, phir chhota example.

    Suggested flow1) Concept kya hai?
    2) Mere code mein kahan?
    3) Example / demo
    4) Edge case

    Example

    # related file: models.py / routes / template
# formula: request → check/auth → DB → render/redirect

    Viva tipExact line yaad nahi to honestly related part dikhao. Bluff mat karo.

  12. 12
    How would you add a new role (Manager) who has all the admin rights and a few more given that the app is already in production (Thought process)
    Times asked 2
    Official solution

    SimpleProject overview: problem → roles → main entities → key flows (register, book, admin approve).

    Viva tip1 minute elevator pitch ready rakho, phir demo.

  13. 13
    Introduce yourself . What are you doing along with it
    Times asked 1
    Official solution

    Simple30 second: naam, degree, project kya hai, stack (Flask + Jinja + SQLAlchemy + SQLite).

    Example

    Main Priya, IITM BS. MAD1 mein parking/ticket app — Flask backend, Jinja templates, session login, SQLite.
  14. 14
    Search implementation
    Times asked 1
    Official solution

    SimpleSearch: form/query param → ilike filter → results template.

    Example

    q = request.args.get('q', '').strip()
lots = Lot.query.filter(Lot.name.ilike(f'%{q}%')).all()
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  1. 1
    Started with introduction and then proceeded to demo of application.
    Times asked 2
    Official solution

    Simple30 second: naam, degree, project kya hai, stack (Flask + Jinja + SQLAlchemy + SQLite).

    Example

    Main Priya, IITM BS. MAD1 mein parking/ticket app — Flask backend, Jinja templates, session login, SQLite.
  2. 2
    What do you understand by web application development? What are the main aspects of it?
    Times asked 2
    Official solution

    SimpleMAD1 typical: Browser → Flask routes → validate/auth → SQLAlchemy → SQLite → Jinja response.

    Suggested flowRequest → Route → Auth check → DB → render_template / redirect

  3. 3
    What framework of Python do you use to render your view?
    Times asked 2
    Official solution

    SimpleStack bolo: Python, Flask, Jinja2, SQLAlchemy, SQLite, HTML/CSS/Bootstrap, maybe Chart.js.

  4. 4
    What do you understand by flask sqlalchemy?
    Times asked 1
    Official solution

    SimpleSQLAlchemy MAD1 ka common ORM. Flask-SQLAlchemy wrapper se db.Model, db.session.

    Example

    user = User(email='a@b.com')
db.session.add(user)
db.session.commit()
users = User.query.filter_by(role='admin').all()
  5. 5
    What is celery?
    Times asked 6
    Official solution

    SimpleCelery background tasks (email, CSV, reports) async chalaata hai. Redis broker/queue + cache.

    User 'Export' click → Celery task queue → Redis message → worker CSV banaata hai → user baad mein download.
    Saath isliye: Celery ko broker chahiye, Redis tez in-memory. MAD2 topic zyada, MAD1 mein optional.
    Priority: task queues/routing. Caching: Redis mein key-value, DB hits kam.
    Pub/Sub: publisher channel pe message, subscribers sunte hain — Redis yeh bhi karta hai.

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  1. 1
    What all celery jobs have you done
    Times asked 2
    Official solution

    SimpleCelery = background naukri. HTTP request ko 10 second email bhejne ke liye mat rokna.

    Distributed task queue: aap function ko abhi nahi, worker process mein later/retry/schedule pe chalaate ho.

    MAD2 typical jobs: daily reminder mail, monthly HTML report, user-triggered CSV export.

    Web request 200ms hona chahiye. 10,000 emails request thread mein = timeout. Worker alag CPU pe kaam kare.

    Redis broker chahiye. Beat alag process schedule ke liye.

    Example

    @celery.task
def daily_reminder():
    for u in User.query.filter_by(active=True):
        send_mail(u.email, 'Book something today!')

    Project example: User Export click → 202 Accepted. Worker CSV + email. Daily 6pm Beat reminder.

    Viva tipWorker + Redis bina Beat ke user-triggered chalega. Scheduled jobs ke liye Beat bhi chahiye.

  2. 2
    What is caching
    Times asked 4
    Official solution

    SimpleCache baar-baar DB/compute na karne ke liye result yaad rakhta hai.

    Browser cache, Flask cache, Redis. Example: dashboard counts 30 sec Redis mein.
    Cookies alag (client data). HTTP 304 Not Modified bhi cache related.
    MAD1 mein optional. Scale poochhe to pehle indexes + cache, phir extra servers.

  3. 3
    Questions on SQL like JOINS, Subquery, Aggregate functions, Group by, Having
    Times asked 2
    Official solution

    SimpleJOIN related tables ek result mein. Inner = match only; left = left side sab + match.

    Example

    db.session.query(Booking, User).join(User).filter(User.id == uid).all()
  4. 4
    Implement a feature to send an email to user whenever a new show is made.
    Times asked 1
    Official solution

    SimpleSMTP + template + Celery. MailHog inbox dikhao, Gmail nahi chahiye.

    Dynamic HTML user name. Live: schedule now.

    Examiner 2 cheezein: simple desi line + tumhare project ki exact file.

    Pehle ID, GitHub, portal ZIP. Phir run: Redis + Flask + worker + beat + Vue. Feature demo: login, RBAC, cache hit/miss, Celery mail, search.

    Line pe ungli: input kahan, kaunsa check, query/cache/task, JSON/UI. Copilot band. Jo nahi kiya honestly bolo + kaise add karte.

    Example

    msg = Message(subject='Daily reminder', recipients=[user.email])
msg.html = render_template('reminder.html', user=user)
mail.send(msg)

    Project example: reminder.html Jinja. tasks send_mail.

    Viva tipLive demo ke liye Celery beat crontab current time pe set karo, worker + beat dono chalu rakho.

  5. 5
    What other things are you doing besides this degree? Why are you doing this degree?
    Times asked 2
    Official solution

    Simple30 second: naam, degree, project kya hai, stack (Flask + Jinja + SQLAlchemy + SQLite).

    Example

    Main Priya, IITM BS. MAD1 mein parking/ticket app — Flask backend, Jinja templates, session login, SQLite.
  6. 6
    Questions on frontend like what type of styling have you used?
    Times asked 2
    Official solution

    SimpleMAD1 frontend usually Jinja templates + HTML/CSS/Bootstrap (+ thoda JS). MAD2 pe Vue ho to clearly bolo.

  7. 7
    Suggestions in the app and some more talking... Supportive and chill proctor
    Times asked 2
    Official solution

    SimpleViva wrap-up hai. Short thanks + confirm submission ZIP latest hai.

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  1. 1
    Introduce yourself.
    Times asked 7
    Official solution

    Simple30s: naam, city, degree, project, stack Vue Flask Redis Celery.

    1 unique feature. No rattu script. Currently doing short then project.

    Examiner 2 cheezein: simple desi line + tumhare project ki exact file.

    Pehle ID, GitHub, portal ZIP. Phir run: Redis + Flask + worker + beat + Vue. Feature demo: login, RBAC, cache hit/miss, Celery mail, search.

    Line pe ungli: input kahan, kaunsa check, query/cache/task, JSON/UI. Copilot band. Jo nahi kiya honestly bolo + kaise add karte.

    Example

    Main Priya, IITM BS. MAD2 SPA — Vue, Flask REST, JWT, Redis cache, Celery reports.

    Project example: Parking/ticket/job-portal one-liner.

    Viva tipScript ratt ke mat bolo. Project ka 1 unique feature highlight karo.

  2. 2
    What are you doing apart from this degree? Why are you pursuing this degree?
    Times asked 1
    Official solution

    SimpleShort honest job/family/other. Why degree 20s then project wapas.

    Don't ramble.

    Pehle 1-line definition, phir related MAD2 layer (Vue SFC / Flask route / models.py / tasks.py / Redis).

    4-line formula: input kahan se aaya, auth/validation kaunsa, DB ya cache ya Celery, kya return.

    Related mix mat karo — cache ≠ Celery, authentication ≠ authorization, v-if ≠ v-show, Beat ≠ Worker. Follow-up ke liye ek difference ready rakho.

    Project example: Bridge to MAD2 skills.

    Project example: Bridge to MAD2 skills.

  3. 3
    Demonstrate your complete project.
    Times asked 2
    Official solution

    SimpleDemo 5–7 min ki kahani: saari roles, koi milestone skip nahi, bolte-bolte dikhao.

    Examiner list tick karta hai. Crash ho to panic nahi — terminal error padho.

    Code tab kholna jab poochhein. Extra uncommitted features mat dikhana agar portal ZIP mein nahi.

    Suggested flow1) Register/login user
    2) Admin login — CRUD
    3) Approval/blacklist
    4) Booking/apply + edge case
    5) Search + charts
    6) CSV export / email job
    7) Logout

    Project example: Jo statement/parking/jobs/tickets hai uske user+admin journeys.

    Viva tipBol: 'Yahan overbooking rokta hoon'. Mandatory features pehle, polish baad.

  4. 4
    Explain the search implementation in your project.
    Times asked 1
    Official solution

    SimpleUngli rakhe to 4-line formula — panic ki jagah structure.

    1) File ka role: model / Flask route / Vue SFC / celery task / config
    2) Input kahan: JSON, params, token, props, $route
    3) Kya kaam: query, cache, validation, .delay()
    4) Output: jsonify, this.items, email, redirect

    Unknown keyword: import, decorator, if, commit — har ka reason. Bluff mat.

    Suggested flow1) Kaunsi layer?
    2) Input?
    3) DB/cache/task?
    4) Response/UI?

    Project example: Booking POST: jwt, seats check, commit, 201, Vue list push.

    Viva tipUnknown keyword: import, decorator, if, commit — har ka reason. Panic mat.

  5. 5
    What frameworks and technologies have you used?
    Times asked 1
    Official solution

    SimpleHar lib ek line why — list 40 mat.

    Flask, SQLAlchemy, JWT/Security, CORS, Caching+Redis, Celery, Vue+Router, Vuex/Pinia, Axios/fetch, Chart.js, Bootstrap.

    Pehle 1-line definition, phir related MAD2 layer (Vue SFC / Flask route / models.py / tasks.py / Redis).

    4-line formula: input kahan se aaya, auth/validation kaunsa, DB ya cache ya Celery, kya return.

    Related mix mat karo — cache ≠ Celery, authentication ≠ authorization, v-if ≠ v-show, Beat ≠ Worker. Follow-up ke liye ek difference ready rakho.

    Project example: requirements.txt + package.json top 6 open karke bolo.

    Viva tipHar lib ek line why: CORS alag origin, Redis tez, Celery async, Chart.js dashboard.

  6. 6
    What's the backbone/architecture of your application?
    Times asked 1
    Official solution

    SimpleClient-server SPA + background workers. Boxes: Vue | HTTP JSON | Flask | SQLite | Redis | Celery.

    Not microservices. Layered REST. Cache aur queue extra.

    Scale story alag: gunicorn, Postgres, more workers.

    MAD2 architecture: Vue SPA (client) → HTTP JSON → Flask API (server) → SQLAlchemy DB. Side path: Flask → Redis broker → Celery worker → MailHog/CSV.

    Client-server alag ports. State: Vue memory + LS token. Persistent: SQLite. Cache: Redis. MVC-ish: models.py, API views, Vue templates.

    Scale: more workers, Postgres, cache, not 'bigger SQLite file'.

    Suggested flowBrowser Vue → HTTP JSON → Flask → SQLAlchemy → DB
    Extra: Redis cache; Celery via Redis

    Project example: Draw 6 boxes viva mein. Point to folders.

  7. 7
    Show your data models.
    Times asked 1
    Official solution

    Simplemodels.py tour + draw. Design decisions unique/cascade.

    SQL models = same.

    ORM objects ko tables se map karta hai — raw SQL kam. SQLAlchemy MAD2 default.

    class User(db.Model) + Column + relationship. query.filter_by / db.session.get. Fayda: portable SQLite→Postgres, injection se safer. Nuksaan: N+1, complex SQL.

    SQLite file, zero server — course friendly. Postgres scale. Relationships: FK, backref, lazy/joinedload, cascade on delete. Constraints unique/not null integrity.

    Bookings source of truth DB, Redis cache copy.

    Project example: 3 relationships explain.

  8. 8
    Show your Celery jobs and reports.
    Times asked 1
    Official solution

    SimpleTask function, beat dict, delay() call, worker+beat terminals, MailHog/CSV.

    App context DB. Args serializable. How many jobs: reminder, monthly, export — gino honestly.

    Celery Python ka distributed task queue — HTTP request ko 10s email/CSV ke liye mat rokna.

    Flow: Flask .delay() → Redis broker → Worker execute. Beat alag process hai (clock): crontab padhke due time pe queue mein daalta hai. Beat khud mail nahi bhejta; Worker haath hai.

    MAD2 typical: daily reminder (Beat), monthly report (Beat), user Export CSV (button, Beat nahi). JS async/await browser event loop hai, Celery server-side process — mix mat karo.

    Demo: tin terminals — redis-server, celery worker, celery beat — plus Flask. MailHog :8025 inbox. Result backend se task SUCCESS poll optional.

    Project example: tasks.py + config schedule + POST export.

  9. 9
    Show how emails are being sent from your application.
    Times asked 1
    Official solution

    SimpleMAIL config Message MailHog. Show how emails sent SMTP. Show Celery-generated emails. Where email sending logic.

    tasks.py + MailHog.

    Flask-Mail / SMTP se mail. Local MailHog fake server: SMTP 1025, UI 8025 — internet nahi, viva safe.

    Asli send Celery task mein, request thread mein nahi. Beat 6pm reminder, export ke baad CSV attach optional.

    MAIL_SERVER localhost demo. Gmail SMTP student account pe block common. Body mein user name personalization examiner dekhta hai.

    Project example: screenshot 8025.

  10. 10
    What styling approach have you used on the frontend?
    Times asked 1
    Official solution

    SimpleBootstrap utilities and/or custom.css. Grid responsive. Colors variables.

    d-flex container btn navbar. Custom for brand. Chart.js alag.

    Pehle 1-line definition, phir related MAD2 layer (Vue SFC / Flask route / models.py / tasks.py / Redis).

    4-line formula: input kahan se aaya, auth/validation kaunsa, DB ya cache ya Celery, kya return.

    Related mix mat karo — cache ≠ Celery, authentication ≠ authorization, v-if ≠ v-show, Beat ≠ Worker. Follow-up ke liye ek difference ready rakho.

    Project example: Inspect a button class. bootstrap CDN or npm.

  11. 11
    What is Flask?
    Times asked 6
    Official solution

    SimpleFlask halka Python web framework. MAD2 REST API. Open source BSD.

    Large apps possible blueprints+gunicorn. Flask(__name__) paths. Dev server not prod.

    create_app factory tests/celery.

    Flask Python micro web framework. Route decorator URL → function. MAD2 mein JSON API: request.get_json(), jsonify, JWT.

    WSGI: server (Werkzeug) app ko call. if __name__ == '__main__' sirf direct run. Factory create_app() test/celery ke liye.

    Blueprint/resources folders. @app.route vs MethodView. Debug=True viva local, prod nahi. CORS alag port Vue ke liye.

    Example

    app = Flask(__name__)
@app.route('/api/hello')
def hello():
    return jsonify(message='Hello World')

    Project example: create_app register db cache cors jwt celery.

    Viva tipOpen source haan. Flask(__name__) root path/templates locate karta hai — hataoge to config confuse.

  12. 12
    What is an API?
    Times asked 8
    Official solution

    SimpleInterface programs use. REST JSON over HTTP MAD2.

    What is an API.

    Pehle 1-line definition, phir related MAD2 layer (Vue SFC / Flask route / models.py / tasks.py / Redis).

    4-line formula: input kahan se aaya, auth/validation kaunsa, DB ya cache ya Celery, kya return.

    Related mix mat karo — cache ≠ Celery, authentication ≠ authorization, v-if ≠ v-show, Beat ≠ Worker. Follow-up ke liye ek difference ready rakho.

    Project example: GET /api/hello.

    Project example: GET /api/hello.

  13. 13
    Explain HTTP verbs (GET, POST, PUT, PATCH, DELETE).
    Times asked 1
    Official solution

    SimplePOST naya janam (har baar naya id). PUT poori photo replace. PATCH sticker chipkao.

    POST create, not idempotent. PUT full update, idempotent. PATCH partial.

    POST ki jagah PUT se REST semantics toot. GET typically no body.

    CRUD map: POST create, GET read, PUT/PATCH update, DELETE delete.

    Pehle 1-line definition, phir related MAD2 layer (Vue SFC / Flask route / models.py / tasks.py / Redis).

    4-line formula: input kahan se aaya, auth/validation kaunsa, DB ya cache ya Celery, kya return.

    Related mix mat karo — cache ≠ Celery, authentication ≠ authorization, v-if ≠ v-show, Beat ≠ Worker. Follow-up ke liye ek difference ready rakho.

    Example

    POST /api/venues
PUT  /api/venues/1   {all fields}
PATCH /api/venues/1 {only name}

    Project example: POST /api/venues create. PUT /venues/1 saari fields. PATCH sirf name.

  14. 14
    What is jsonify()?
    Times asked 1
    Official solution

    Simplejsonify Flask ka JSON response + sahi Content-Type. dumps sirf string.

    marshal schema. serialize models. pickle APIs pe nahi.

    Flask Python micro web framework. Route decorator URL → function. MAD2 mein JSON API: request.get_json(), jsonify, JWT.

    WSGI: server (Werkzeug) app ko call. if __name__ == '__main__' sirf direct run. Factory create_app() test/celery ke liye.

    Blueprint/resources folders. @app.route vs MethodView. Debug=True viva local, prod nahi. CORS alag port Vue ke liye.

    Example

    return jsonify(users=[{'id': u.id, 'email': u.email} for u in User.query.all()])

    Project example: return jsonify(users=[u.serialize() for u in users])

  15. 15
    What security mechanism have you implemented?
    Times asked 1
    Official solution

    SimplePassword hash, JWT, RBAC, CORS whitelist, HTTPS prod, no secrets Vue.

    Least privilege. Don't CORS *.

    Pehle 1-line definition, phir related MAD2 layer (Vue SFC / Flask route / models.py / tasks.py / Redis).

    4-line formula: input kahan se aaya, auth/validation kaunsa, DB ya cache ya Celery, kya return.

    Related mix mat karo — cache ≠ Celery, authentication ≠ authorization, v-if ≠ v-show, Beat ≠ Worker. Follow-up ke liye ek difference ready rakho.

    Project example: List 4 you actually coded.

    Project example: List 4 you actually coded.

  16. 16
    What other authentication mechanisms are available in Flask besides JWT?
    Times asked 1
    Official solution

    SimpleFlask-Login sessions, HTTP Basic, OAuth. We used JWT. Available besides JWT.

    What other authentication Flask.

    Authentication poochta hai "tu kaun hai?", Authorization poochta hai "tujhe yeh kaam karne ki permission hai?"

    Authentication: login. Username + password hash check. Success pe JWT/session. Galat credentials = 401.
    Authorization: uske baad role. Admin hi venue/lot delete kare, student nahi = 403 (logged in ho, allowed nahi).

    MAD2: POST /api/login = authentication. @jwt_required identity. @roles_required('admin') ya Vue v-if="isAdmin" = authorization. Frontend hide sirf UX — asli deny backend pe.

    Validation alag: form sahi bhara (email format, age 18+). Woh identity prove nahi karta. Password store hash (Werkzeug), JWT payload padha ja sakta hai isliye secret mat daalo.

    Project example: Not implemented OAuth.

  17. 17
    How is JWT built?
    Times asked 1
    Official solution

    Simpleheader+payload base64 HMAC secret → signature three segments. How JWT built.

    HS256.

    Authentication poochta hai "tu kaun hai?", Authorization poochta hai "tujhe yeh kaam karne ki permission hai?"

    Authentication: login. Username + password hash check. Success pe JWT/session. Galat credentials = 401.
    Authorization: uske baad role. Admin hi venue/lot delete kare, student nahi = 403 (logged in ho, allowed nahi).

    MAD2: POST /api/login = authentication. @jwt_required identity. @roles_required('admin') ya Vue v-if="isAdmin" = authorization. Frontend hide sirf UX — asli deny backend pe.

    Validation alag: form sahi bhara (email format, age 18+). Woh identity prove nahi karta. Password store hash (Werkzeug), JWT payload padha ja sakta hai isliye secret mat daalo.

    Project example: jwt.io.

  18. 18
    How is JWT validated?
    Times asked 1
    Official solution

    SimpleSplit decode hmac compare exp < now user exists. Invalid 401. How JWT validated.

    Library does it @jwt_required.

    Authentication poochta hai "tu kaun hai?", Authorization poochta hai "tujhe yeh kaam karne ki permission hai?"

    Authentication: login. Username + password hash check. Success pe JWT/session. Galat credentials = 401.
    Authorization: uske baad role. Admin hi venue/lot delete kare, student nahi = 403 (logged in ho, allowed nahi).

    MAD2: POST /api/login = authentication. @jwt_required identity. @roles_required('admin') ya Vue v-if="isAdmin" = authorization. Frontend hide sirf UX — asli deny backend pe.

    Validation alag: form sahi bhara (email format, age 18+). Woh identity prove nahi karta. Password store hash (Werkzeug), JWT payload padha ja sakta hai isliye secret mat daalo.

    Project example: Wrong token Postman 401.

  19. 19
    JWT vs Session-based authentication.
    Times asked 1
    Official solution

    SimpleSession school id card office mein rakha. Token photocopy jo tum har baar dikhate ho.

    Session: Set-Cookie, server store, MAD1 Flask-Login. CSRF risk cookies auto-send.

    Token/JWT: SPA + alag port Vue/Flask, scale easy, mobile. XSS if localStorage.

    MAD2 typically JWT/Flask-Security token. httpOnly cookie safer lekin CORS+CSRF extra.

    Example

    # session
login_user(user)  # Set-Cookie
# token
return jsonify(token=create_access_token(identity=user.id))

    Project example: login jsonify token. Vue LS. MAD1 session cookie nahi dikhana unless used.

    Viva tipToken localStorage XSS risk; httpOnly cookie safer. Session CSRF risk. MAD2 APIs ke liye JWT/Flask-Security token common.

  20. 20
    What is RBAC (Role-Based Access Control)?
    Times asked 3
    Official solution

    SimpleRBAC = role ka badge. Admin badge se delete, user badge se sirf book.

    Role-Based Access Control. Har user pe alag permission list nahi — roles.

    Models: User M-M Role association. Decorators @roles_required. Vue v-if + router meta.

    Frontend hide UX. Backend 403 real security.

    Example

    if current_user.roles[0].name != 'admin':
    return jsonify(msg='Forbidden'), 403

    Project example: roles_users table. admin stats API roles_required. User booking POST user role.

    Viva tipCode mein roles_required, Vue meta.role, models User↔Role many-to-many (roles_users table).

  21. 21
    What is SQLAlchemy?
    Times asked 8
    Official solution

    SimpleSQLAlchemy toolkit + ORM. Flask-SQLAlchemy wrapper db.

    URI sqlite:///app.db. Postgres postgresql://. Dialects MySQL MSSQL.

    Session add/commit/rollback. IntegrityError catch.

    ORM objects ko tables se map karta hai — raw SQL kam. SQLAlchemy MAD2 default.

    class User(db.Model) + Column + relationship. query.filter_by / db.session.get. Fayda: portable SQLite→Postgres, injection se safer. Nuksaan: N+1, complex SQL.

    SQLite file, zero server — course friendly. Postgres scale. Relationships: FK, backref, lazy/joinedload, cascade on delete. Constraints unique/not null integrity.

    Bookings source of truth DB, Redis cache copy.

    Example

    app.config['SQLALCHEMY_DATABASE_URI'] = 'sqlite:///app.db'
# migrate: URI postgres://user:pass@host/db  + psycopg2

    Project example: config SQLALCHEMY_DATABASE_URI. db.create_all() ya migrate.

  22. 22
    Why do we use SQLAlchemy instead of directly using SQLite?
    Times asked 1
    Official solution

    SimpleModels safety portability. Raw OK reports. text()+format still inject.

    SQLAlchemy injection possible if you raw concat.

    ORM objects ko tables se map karta hai — raw SQL kam. SQLAlchemy MAD2 default.

    class User(db.Model) + Column + relationship. query.filter_by / db.session.get. Fayda: portable SQLite→Postgres, injection se safer. Nuksaan: N+1, complex SQL.

    SQLite file, zero server — course friendly. Postgres scale. Relationships: FK, backref, lazy/joinedload, cascade on delete. Constraints unique/not null integrity.

    Bookings source of truth DB, Redis cache copy.

    Project example: No f"SELECT ... {name}".

  23. 23
    Which databases are supported by SQLAlchemy?
    Times asked 1
    Official solution

    SimpleSQLite MySQL Postgres MSSQL Oracle via dialects + drivers.

    Which DBs supported by SQLAlchemy. Can MSSQL? Yes pyodbc.

    Pehle 1-line definition, phir related MAD2 layer (Vue SFC / Flask route / models.py / tasks.py / Redis).

    4-line formula: input kahan se aaya, auth/validation kaunsa, DB ya cache ya Celery, kya return.

    Related mix mat karo — cache ≠ Celery, authentication ≠ authorization, v-if ≠ v-show, Beat ≠ Worker. Follow-up ke liye ek difference ready rakho.

    Project example: We used sqlite. Could switch URI.

  24. 24
    What is ORM? What are its advantages?
    Times asked 1
    Official solution

    SimpleORM = translator. Python object bolo, woh SQL mein baat kare.

    Object Relational Mapper. Class User ↔ table user. Raw SQL kam.

    SQLAlchemy MAD1/MAD2. Fayde: portable SQLite→Postgres, relationships, parameterized queries (injection kam).
    Nuksaan: N+1, hidden SQL, complex reports pe raw better.

    Direct sqlite3 se SQLAlchemy isliye: models, switch DB, safer queries.

    Example

    class User(db.Model):
    id = db.Column(db.Integer, primary_key=True)
    email = db.Column(db.String(128), unique=True)
User.query.filter_by(email='a@b.com').first()

    Project example: models.py db.Model. resources User.query.filter_by. Koi f-string SQL nahi.

    Viva tipFayde: safe-ish, portable (SQLite→Postgres). Nuksaan: complex queries, N+1, leaky abstractions. Direct SQLite se SQLAlchemy isliye: models + injection protection + switch DB.

  25. 25
    Explain your database models.
    Times asked 8
    Official solution

    SimpleTables + lines (FK) + 1-M / M-M. Draw mentally, phir models.py.

    Har class: PK, important columns, relationships. Why normalized (no duplicate venue name in every show as only string without FK).

    Indexes search columns. Unique email. Cascade policy bookings pe.

    Pehle 1-line definition, phir related MAD2 layer (Vue SFC / Flask route / models.py / tasks.py / Redis).

    4-line formula: input kahan se aaya, auth/validation kaunsa, DB ya cache ya Celery, kya return.

    Related mix mat karo — cache ≠ Celery, authentication ≠ authorization, v-if ≠ v-show, Beat ≠ Worker. Follow-up ke liye ek difference ready rakho.

    Project example: User-Role M-M. User-Booking 1-M. Venue-Show 1-M. Show-Booking 1-M.

  26. 26
    What SQL constraints are available?
    Times asked 1
    Official solution

    SimpleNOT NULL UNIQUE PK FK CHECK. Integrity even if API bug. Two writers safer.

    Why required. SQL constraints available.

    ORM objects ko tables se map karta hai — raw SQL kam. SQLAlchemy MAD2 default.

    class User(db.Model) + Column + relationship. query.filter_by / db.session.get. Fayda: portable SQLite→Postgres, injection se safer. Nuksaan: N+1, complex SQL.

    SQLite file, zero server — course friendly. Postgres scale. Relationships: FK, backref, lazy/joinedload, cascade on delete. Constraints unique/not null integrity.

    Bookings source of truth DB, Redis cache copy.

    Project example: email unique. user_id FK.

  27. 27
    Is there any one-to-one relationship in your models?
    Times asked 1
    Official solution

    SimpleHaan Profile / nahi only 1-M. Don't invent.

    Is there one-to-one.

    Pehle 1-line definition, phir related MAD2 layer (Vue SFC / Flask route / models.py / tasks.py / Redis).

    4-line formula: input kahan se aaya, auth/validation kaunsa, DB ya cache ya Celery, kya return.

    Related mix mat karo — cache ≠ Celery, authentication ≠ authorization, v-if ≠ v-show, Beat ≠ Worker. Follow-up ke liye ek difference ready rakho.

    Project example: Open models.

    Project example: Open models.

  28. 28
    Explain relationships between your tables.
    Times asked 1
    Official solution

    SimpleUngli rakhe to 4-line formula — panic ki jagah structure.

    1) File ka role: model / Flask route / Vue SFC / celery task / config
    2) Input kahan: JSON, params, token, props, $route
    3) Kya kaam: query, cache, validation, .delay()
    4) Output: jsonify, this.items, email, redirect

    Unknown keyword: import, decorator, if, commit — har ka reason. Bluff mat.

    Suggested flow1) Kaunsi layer?
    2) Input?
    3) DB/cache/task?
    4) Response/UI?

    Project example: Booking POST: jwt, seats check, commit, 201, Vue list push.

    Viva tipUnknown keyword: import, decorator, if, commit — har ka reason. Panic mat.

  29. 29
    What are SQL aggregate functions?
    Times asked 1
    Official solution

    SimpleCOUNT SUM AVG MIN MAX. Dashboard stats.

    SQL aggregate functions.

    Pehle 1-line definition, phir related MAD2 layer (Vue SFC / Flask route / models.py / tasks.py / Redis).

    4-line formula: input kahan se aaya, auth/validation kaunsa, DB ya cache ya Celery, kya return.

    Related mix mat karo — cache ≠ Celery, authentication ≠ authorization, v-if ≠ v-show, Beat ≠ Worker. Follow-up ke liye ek difference ready rakho.

    Example

    db.session.query(func.count(Booking.id)).scalar()

    Project example: func.count(Booking.id).

  30. 30
    Explain GROUP BY.
    Times asked 1
    Official solution

    SimpleGROUP BY collapse + aggregates per group. Dashboard count per venue.

    Explain GROUP BY.

    Pehle 1-line definition, phir related MAD2 layer (Vue SFC / Flask route / models.py / tasks.py / Redis).

    4-line formula: input kahan se aaya, auth/validation kaunsa, DB ya cache ya Celery, kya return.

    Related mix mat karo — cache ≠ Celery, authentication ≠ authorization, v-if ≠ v-show, Beat ≠ Worker. Follow-up ke liye ek difference ready rakho.

    Project example: stats API func.count group venue_id.

    Project example: stats API func.count group venue_id.

  31. 31
    Explain HAVING.
    Times asked 1
    Official solution

    SimpleHAVING after group. WHERE before. users with >5 bookings HAVING COUNT>5.

    Explain HAVING. WHERE cannot use COUNT same way.

    Pehle 1-line definition, phir related MAD2 layer (Vue SFC / Flask route / models.py / tasks.py / Redis).

    4-line formula: input kahan se aaya, auth/validation kaunsa, DB ya cache ya Celery, kya return.

    Related mix mat karo — cache ≠ Celery, authentication ≠ authorization, v-if ≠ v-show, Beat ≠ Worker. Follow-up ke liye ek difference ready rakho.

    Project example: Venues having count>10.

  32. 32
    Explain SQL joins.
    Times asked 1
    Official solution

    SimpleJOIN ON fk=pk. inner match dono. left left saari. SQLAlchemy .join(User.roles).

    What are joins. Explain SQL joins.

    ORM objects ko tables se map karta hai — raw SQL kam. SQLAlchemy MAD2 default.

    class User(db.Model) + Column + relationship. query.filter_by / db.session.get. Fayda: portable SQLite→Postgres, injection se safer. Nuksaan: N+1, complex SQL.

    SQLite file, zero server — course friendly. Postgres scale. Relationships: FK, backref, lazy/joinedload, cascade on delete. Constraints unique/not null integrity.

    Bookings source of truth DB, Redis cache copy.

    Project example: bookings join user email list.

  33. 33
    Explain subqueries.
    Times asked 1
    Official solution

    SimpleQuery inside query. Exists / in_. Users bookings>3.

    Explain subqueries.

    Pehle 1-line definition, phir related MAD2 layer (Vue SFC / Flask route / models.py / tasks.py / Redis).

    4-line formula: input kahan se aaya, auth/validation kaunsa, DB ya cache ya Celery, kya return.

    Related mix mat karo — cache ≠ Celery, authentication ≠ authorization, v-if ≠ v-show, Beat ≠ Worker. Follow-up ke liye ek difference ready rakho.

    Project example: Maybe not used — theory + how would.

    Project example: Maybe not used — theory + how would.

  34. 34
    What happens to AUTO_INCREMENT values after deleting a record?
    Times asked 1
    Official solution

    SimpleDelete ke baad AUTOINCREMENT wapas nahi. Sequence aage. Gaps normal.

    Last auto-increment sqlite_sequence. Not needed usually.

    Pehle 1-line definition, phir related MAD2 layer (Vue SFC / Flask route / models.py / tasks.py / Redis).

    4-line formula: input kahan se aaya, auth/validation kaunsa, DB ya cache ya Celery, kya return.

    Related mix mat karo — cache ≠ Celery, authentication ≠ authorization, v-if ≠ v-show, Beat ≠ Worker. Follow-up ke liye ek difference ready rakho.

    Project example: Don't rely on ids 1,2,3 after deletes.

  35. 35
    What is the last auto-increment value?
    Times asked 1
    Official solution

    Simplesqlite_sequence / information_schema. Last auto-increment value. Not needed usually.

    SELECT seq FROM sqlite_sequence.

    Pehle 1-line definition, phir related MAD2 layer (Vue SFC / Flask route / models.py / tasks.py / Redis).

    4-line formula: input kahan se aaya, auth/validation kaunsa, DB ya cache ya Celery, kya return.

    Related mix mat karo — cache ≠ Celery, authentication ≠ authorization, v-if ≠ v-show, Beat ≠ Worker. Follow-up ke liye ek difference ready rakho.

    Project example: Don't rely.

    Project example: Don't rely.

  36. 36
    How can you migrate data from one database to another?
    Times asked 1
    Official solution

    SimpleDump SQL/CSV new URI alembic import. sqlite3 .dump | psql careful types.

    How migrate data one DB to another.

    ORM objects ko tables se map karta hai — raw SQL kam. SQLAlchemy MAD2 default.

    class User(db.Model) + Column + relationship. query.filter_by / db.session.get. Fayda: portable SQLite→Postgres, injection se safer. Nuksaan: N+1, complex SQL.

    SQLite file, zero server — course friendly. Postgres scale. Relationships: FK, backref, lazy/joinedload, cascade on delete. Constraints unique/not null integrity.

    Bookings source of truth DB, Redis cache copy.

    Project example: Not done, steps known.

  37. 37
    What is Vue.js?
    Times asked 5
    Official solution

    SimpleVue = UI ka smart assistant. Data badlo, screen khud update. MAD1 Jinja har click pe naya HTML.

    Progressive frontend framework. Components, reactivity, directives.

    MAD2 SPA: ek index.html, Vue Router pages, Flask sirf JSON.

    Fayde: easy, SFC, docs. Vs React: templates HTML-like, course sikhata hai. Vs plain JS: baar-baar DOM mat chhedo.

    Example

    <!-- HelloWorld.vue -->
<template>
  <h1>{{ msg }}</h1>
</template>
<script>
export default { data() { return { msg: 'Hello' } } }
</script>

    Project example: Navbar.vue + views (Login, Dashboard). data() / setup() reactive. fetch APIs.

    Viva tipFayde: easy, SFC, reactivity. Vs React: chhota learning curve. Vs plain JS: UI state auto-update.

  38. 38
    What is the difference between Vue CDN and Vue CLI?
    Times asked 1
    Official solution

    SimpleCDN = Vue script tag se, jaise pen drive. CLI/Vite = poori factory (SFC, npm, bundle).

    CDN: no build, chhote apps, exam PC pe Node nahi to bhi chal. Weak: no .vue compile, 3rd-party cache, scale/team.

    CLI/Vite: Single File Components, env, code-split, production dist/. Scalable.

    Examiner 'which + why' — jo use kiya wahi justify, doosra naam rato mat.

    Example

    <!-- CDN -->
<script src="https://unpkg.com/vue@3/dist/vue.global.js"></script>

# Vite
npm run dev
npm run build

    Project example: CDN: index.html unpkg vue. CLI: package.json, npm run serve / vite.

    Viva tipCDN scalable large teams ke liye weak (no SFC compile, caching 3rd party). Examiner 'which + why' poochta hai — jo use kiya wahi justify karo.

  39. 39
    Which one did you use and why?
    Times asked 2
    Official solution

    SimpleJo actually use kiya: CDN vs CLI / Vuex vs Pinia / fetch vs Axios — 1 reason + tradeoff.

    Examiner vague 'which one' previous question se jodo. Package.json dikhao.

    Pehle 1-line definition, phir related MAD2 layer (Vue SFC / Flask route / models.py / tasks.py / Redis).

    4-line formula: input kahan se aaya, auth/validation kaunsa, DB ya cache ya Celery, kya return.

    Related mix mat karo — cache ≠ Celery, authentication ≠ authorization, v-if ≠ v-show, Beat ≠ Worker. Follow-up ke liye ek difference ready rakho.

    Project example: Don't invent unused library.

  40. 40
    What is Vuex?
    Times asked 3
    Official solution

    SimpleVuex/Pinia ghar ka notice board. Har room (component) same user/token dekhe.

    State data, mutations sync change, actions async API phir commit.

    Local data() sirf us component. Token/user global.

    Pinia Vue 3 official, kam boilerplate. Vuex older MAD2 still common.

    Example

    state: { user: null }
mutations: { setUser(s, u) { s.user = u } }
actions: { async login({ commit }, form) {
  const u = await api.login(form); commit('setUser', u)
}}

    Project example: store user + token login action. Navbar getters isAdmin. Logout clear LS+state.

    Viva tipLocal/Session storage persist ke liye, reactive share ke liye store. Pinia Vue 3 official, Vuex older.

  41. 41
    What is Pinia?
    Times asked 2
    Official solution

    SimplePinia naya store: mutations nahi, seedha state. Vue 3 recommended.

    defineStore. Vuex vs Pinia: naya project Pinia. Purana Vuex valid.

    Component = reusable UI block (Navbar, Card). Props parent→child data, emit child→parent event. Slots parent HTML inner content.

    computed cache + reactive derive (filtered list). watch side-effect (query change pe API). methods events. ref() primitive, reactive() object. Vuex/Pinia global store; localStorage persist, store nahi.

    SFC: template + script + style ek .vue file. Parent-child exam favourite: list parent, row child :item + @delete.

    Project example: stores/user.js. Agar Vuex hai to Pinia ka naam mat lo unless used.

  42. 42
    Vuex vs Pinia.
    Times asked 1
    Official solution

    SimplePinia naya store: mutations nahi, seedha state. Vue 3 recommended.

    defineStore. Vuex vs Pinia: naya project Pinia. Purana Vuex valid.

    Component = reusable UI block (Navbar, Card). Props parent→child data, emit child→parent event. Slots parent HTML inner content.

    computed cache + reactive derive (filtered list). watch side-effect (query change pe API). methods events. ref() primitive, reactive() object. Vuex/Pinia global store; localStorage persist, store nahi.

    SFC: template + script + style ek .vue file. Parent-child exam favourite: list parent, row child :item + @delete.

    Project example: stores/user.js. Agar Vuex hai to Pinia ka naam mat lo unless used.

  43. 43
    What are Vue lifecycle hooks?
    Times asked 11
    Official solution

    SimpleLifecycle = component ki zindagi ke stages. API call tab jab DOM ready ho — mounted.

    created: instance bani, this data, DOM nahi. mounted/onMounted: page pe aa gaya — fetch, Chart.js, setInterval.
    updated: data change ke baad. unmounted: cleanup (clearInterval) warna memory leak.

    Dashboards onMounted isliye: canvas/API tab valid. created mein $el nahi.

    Composition: onMounted(() => {}) setup ke andar.

    Example

    export default {
  async mounted() {
    const r = await fetch('/api/venues')
    this.venues = await r.json()
  }
}

    Project example: Venues.vue mounted fetch list. Clock component unmounted pe interval clear.

    Viva tipcreated: data setup, DOM nahi. mounted/onMounted: $el mil gaya — fetch yahi. Dashboards isliye onMounted use karti hain.

  44. 44
    Why are lifecycle hooks useful?
    Times asked 1
    Official solution

    SimpleRight time side effects fetch timers. Cleanup unmount leak. Fetch after DOM.

    Why lifecycle hooks useful.

    Lifecycle = component ki zindagi: created (instance, DOM nahi) → mounted/onMounted (DOM ready — fetch, Chart.js yahi) → updated → unmounted (clearInterval).

    Dashboard API created mein isliye nahi ki $el/canvas missing ho sakta. Composition API: onMounted(() => {}) setup ke andar. Options: mounted() method. Mix mat.

    Examiner 'konsa hook use kiya' — related .vue kholo, line padh ke bolo.

    Project example: mounted fetch, beforeUnmount clearInterval.

  45. 45
    What is data binding in Vue?
    Times asked 1
    Official solution

    SimpleMustache {{ }}, v-bind attrs, v-model forms, v-html careful.

    Data binding in Vue.

    Pehle 1-line definition, phir related MAD2 layer (Vue SFC / Flask route / models.py / tasks.py / Redis).

    4-line formula: input kahan se aaya, auth/validation kaunsa, DB ya cache ya Celery, kya return.

    Related mix mat karo — cache ≠ Celery, authentication ≠ authorization, v-if ≠ v-show, Beat ≠ Worker. Follow-up ke liye ek difference ready rakho.

    Project example: Form + text + image.

    Project example: Form + text + image.

  46. 46
    What is v-model?
    Times asked 4
    Official solution

    Simplev-model do tarfa glue: input likho to data, data badlo to input.

    Shorthand :value + @input. Forms ke liye. Display ke liye {{ }} / v-bind kaafi.

    v-model.number number input. checkbox boolean. select string.

    Directives Vue ke special attributes hain — HTML ko superpower: v-if/v-show, v-for, v-bind (:), v-on (@), v-model.

    v-if DOM se hataata/jodta. v-show sirf CSS display. Rare/permission: v-if. Bar-bar toggle: v-show. v-model two-way form. v-bind one-way JS→attribute.

    :key v-for pe zaroori warna Vue galat reuse. v-html XSS. Secret UI ke liye sirf v-if kaafi nahi — API 403 bhi.

    MAD1 Jinja server HTML. MAD2 yeh directives browser mein reactive.

    Example

    <input v-model="email">
<!-- same as -->
<input :value="email" @input="email = $event.target.value">

    Project example: Login email/password v-model, submit pe JSON POST.

  47. 47
    What is v-bind?
    Times asked 1
    Official solution

    Simplev-bind one-way: JS → HTML attribute. UI se data automatic nahi aata.

    Images src, disabled, class object, href. Colon shorthand.

    Dynamic class :class="{ active: isOn }".

    Directives Vue ke special attributes hain — HTML ko superpower: v-if/v-show, v-for, v-bind (:), v-on (@), v-model.

    v-if DOM se hataata/jodta. v-show sirf CSS display. Rare/permission: v-if. Bar-bar toggle: v-show. v-model two-way form. v-bind one-way JS→attribute.

    :key v-for pe zaroori warna Vue galat reuse. v-html XSS. Secret UI ke liye sirf v-if kaafi nahi — API 403 bhi.

    MAD1 Jinja server HTML. MAD2 yeh directives browser mein reactive.

    Example

    <img :src="posterUrl" :alt="title">
<button :disabled="loading">Save</button>
<div :class="{ active: isOn }">

    Project example: Poster :src="show.poster". Submit :disabled="loading".

  48. 48
    Difference between v-model and v-bind.
    Times asked 4
    Official solution

    SimpleBind = ek tarfa poster lagana. Model = form jo typed text wapas data mein likhe.

    Display/image/disabled → v-bind. Input/textarea/select → v-model.
    Dono mix: <input v-bind:placeholder="hint" v-model="q">.

    Directives Vue ke special attributes hain — HTML ko superpower: v-if/v-show, v-for, v-bind (:), v-on (@), v-model.

    v-if DOM se hataata/jodta. v-show sirf CSS display. Rare/permission: v-if. Bar-bar toggle: v-show. v-model two-way form. v-bind one-way JS→attribute.

    :key v-for pe zaroori warna Vue galat reuse. v-html XSS. Secret UI ke liye sirf v-if kaafi nahi — API 403 bhi.

    MAD1 Jinja server HTML. MAD2 yeh directives browser mein reactive.

    Example

    <p>{{ price }}</p>
<img :src="url">
<input v-model="price">

    Project example: Search box v-model q. Result images :src.

  49. 49
    Difference between v-if and v-show.
    Times asked 10
    Official solution

    Simplev-if ghar se nikaal deta hai (DOM se). v-show sirf light band karta hai (display:none).

    v-if false → element exist hi nahi — costly create/destroy, lekin secret HTML DOM mein nahi.
    v-show → hamesha DOM, CSS hide, toggle tez.

    Rare / permission UI: v-if (admin panel). Dropdown bar-bar: v-show.

    : shorthand v-bind ka, v-if ka nahi.

    Example

    <div v-if="isAdmin">Admin panel</div>
<div v-show="open">Dropdown</div>

    Project example: Admin links v-if="role==='admin'". FAQ accordion v-show="open".

    Viva tipSecurity ke liye sirf v-if kaafi nahi — API 403 bhi chahiye.

  50. 50
    What are Vue directives?
    Times asked 6
    Official solution

    SimpleDirectives Vue ke special attributes — HTML ko superpower.

    v-if/else/show, v-for, v-bind (:), v-on (@), v-model, v-html (XSS), v-cloak, v-slot.

    :src = v-bind:src. @click = v-on:click.

    Custom directives bhi (v-focus) — course basics kaafi.

    Example

    <p v-if="ok">Yes</p>
<li v-for="u in users" :key="u.id">{{ u.name }}</li>
<input v-model="email">
<img :src="url">

    Project example: List v-for :key. Form v-model. Admin v-if. Image :src.

    Viva tip: src ke liye v-bind:src ka shorthand. @click = v-on:click.

  51. 51
    How do components communicate in Vue?
    Times asked 2
    Official solution

    SimpleBaat: props se neeche, emit se upar. Door ke rishte: store ya provide/inject.

    Grandparent→grandchild props drilling ugly. Vuex/Pinia ya provide('user').

    Did you use? List+card files naam lo.

    Pehle 1-line definition, phir related MAD2 layer (Vue SFC / Flask route / models.py / tasks.py / Redis).

    4-line formula: input kahan se aaya, auth/validation kaunsa, DB ya cache ya Celery, kya return.

    Related mix mat karo — cache ≠ Celery, authentication ≠ authorization, v-if ≠ v-show, Beat ≠ Worker. Follow-up ke liye ek difference ready rakho.

    Example

    provide('user', user)
const user = inject('user')

    Project example: Dashboard v-for BookingCard. Card emit 'cancel'.

    Viva tip3+ level props drilling se better store. Navbar user info store se lo.

  52. 52
    Explain Props.
    Times asked 1
    Official solution

    SimpleProps parent ki thali child ko dena. Child thali tod ke parent ki thali na badle — emit bolo.

    Declare props, parent :venue="v". One-way. Mutate mat. Types/required Vue 3.

    List parent, card child — classic viva.

    Component = reusable UI block (Navbar, Card). Props parent→child data, emit child→parent event. Slots parent HTML inner content.

    computed cache + reactive derive (filtered list). watch side-effect (query change pe API). methods events. ref() primitive, reactive() object. Vuex/Pinia global store; localStorage persist, store nahi.

    SFC: template + script + style ek .vue file. Parent-child exam favourite: list parent, row child :item + @delete.

    Example

    <VenueCard :venue="v" @select="onSelect" />
props: ['venue']
this.$emit('select', this.venue.id)

    Project example: VenueCard :venue. Child $emit('select', id).

  53. 53
    Explain Emits.
    Times asked 1
    Official solution

    Simpleemit = child parent ko chillata hai: 'delete 5'. Props down, events up.

    this.$emit('delete', id). Parent @delete="removeRow".

    Grandchild: chain emit ya Vuex/provide.

    Component = reusable UI block (Navbar, Card). Props parent→child data, emit child→parent event. Slots parent HTML inner content.

    computed cache + reactive derive (filtered list). watch side-effect (query change pe API). methods events. ref() primitive, reactive() object. Vuex/Pinia global store; localStorage persist, store nahi.

    SFC: template + script + style ek .vue file. Parent-child exam favourite: list parent, row child :item + @delete.

    Example

    this.$emit('delete', id)
// parent: <Child @delete="removeRow" />

    Project example: BookingRow emit cancel → parent list se hata + API DELETE.

  54. 54
    Explain Slots.
    Times asked 1
    Official solution

    SimpleUngli rakhe to 4-line formula — panic ki jagah structure.

    1) File ka role: model / Flask route / Vue SFC / celery task / config
    2) Input kahan: JSON, params, token, props, $route
    3) Kya kaam: query, cache, validation, .delay()
    4) Output: jsonify, this.items, email, redirect

    Unknown keyword: import, decorator, if, commit — har ka reason. Bluff mat.

    Suggested flow1) Kaunsi layer?
    2) Input?
    3) DB/cache/task?
    4) Response/UI?

    Project example: Booking POST: jwt, seats check, commit, 201, Vue list push.

    Viva tipUnknown keyword: import, decorator, if, commit — har ka reason. Panic mat.

  55. 55
    How do you pass data from parent to child and child to parent?
    Times asked 1
    Official solution

    SimpleProps down emit up. Store distant. provide inject. Grandparent chain or store.

    Parent to child and back. Grandparent grandchild.

    Pehle 1-line definition, phir related MAD2 layer (Vue SFC / Flask route / models.py / tasks.py / Redis).

    4-line formula: input kahan se aaya, auth/validation kaunsa, DB ya cache ya Celery, kya return.

    Related mix mat karo — cache ≠ Celery, authentication ≠ authorization, v-if ≠ v-show, Beat ≠ Worker. Follow-up ke liye ek difference ready rakho.

    Project example: 3+ levels store better.

  56. 56
    What is the Composition API?
    Times asked 1
    Official solution

    SimpleOptions: data methods computed alag. Composition: setup() logic group, reuse.

    Vue 3 both. Course either. Don't claim unused API.

    Component = reusable UI block (Navbar, Card). Props parent→child data, emit child→parent event. Slots parent HTML inner content.

    computed cache + reactive derive (filtered list). watch side-effect (query change pe API). methods events. ref() primitive, reactive() object. Vuex/Pinia global store; localStorage persist, store nahi.

    SFC: template + script + style ek .vue file. Parent-child exam favourite: list parent, row child :item + @delete.

    Project example: script setup vs export default options — open file.

  57. 57
    Composition API vs Options API.
    Times asked 1
    Official solution

    SimpleOptions: data methods computed alag. Composition: setup() logic group, reuse.

    Vue 3 both. Course either. Don't claim unused API.

    Component = reusable UI block (Navbar, Card). Props parent→child data, emit child→parent event. Slots parent HTML inner content.

    computed cache + reactive derive (filtered list). watch side-effect (query change pe API). methods events. ref() primitive, reactive() object. Vuex/Pinia global store; localStorage persist, store nahi.

    SFC: template + script + style ek .vue file. Parent-child exam favourite: list parent, row child :item + @delete.

    Project example: script setup vs export default options — open file.

  58. 58
    What changed from Vue 2 to Vue 3?
    Times asked 1
    Official solution

    SimpleVue 3 naya engine: Composition API, fragments, better TS, tree-shaking. Vue 2 Options + filters.

    mounted vs onMounted. Filters Vue 3 mein hata — computed/methods.

    Version package.json / Vue.version se dikhao. Jo use kiya uske hooks bolo.

    SPA = ek HTML, Vue Router se views, full reload nahi. MPA = MAD1 Jinja har URL naya HTML.

    Vue Router: routes array, router-view, router-link, meta.auth + beforeEach guard. Dynamic /venues/:id → $route.params.id.

    Vite/CLI SFC + npm build dist/. CDN script tag, no SFC. Jo tumne use kiya wahi justify. Flask send_from_directory('dist') production pattern.

    Project example: package.json vue ^3.x. setup() + onMounted fetch.

    Viva tipVersion package.json / Vue.version se dikhao. MAD2 dono allowed usually — jo use kiya uske hooks bolo (mounted vs onMounted).

  59. 59
    What is v-memo?
    Times asked 1
    Official solution

    Simplev-memo Vue3 skip re-render if deps same. Big lists.

    Optimization. Tree shaking Vue3 modular.

    Redis in-memory key-value store hai — fridge pe sticky note, poori kitchen (SQL database) har baar mat kholo.

    MAD2 mein Redis do kaam: (1) cache — same venues/shows/dashboard JSON baar-baar DB se nahi (2) Celery broker — Flask task queue mein daalta hai, worker uthata hai.

    Flow: cache.get(key) → hit pe return, miss pe SQLAlchemy + SET with timeout. Admin write ke baad cache.delete, warna stale list.

    Source of truth database hi hai. Redis crash/band = cache miss (app chalni chahiye) + queue ruk sakti hai. Important bookings sirf Redis mein mat rakho.

    Alag: Redis ≠ Memcached (Celery broker nahi). Redis ≠ localStorage (woh browser). redis-cli ping → PONG viva proof.

    Project example: If unused, theory. v-for :key more important.

  60. 60
    What Vue 3 optimizations (e.g., Tree Shaking) are available?
    Times asked 1
    Official solution

    SimpleOptions: data methods computed watch props components mounted. Tree shaking fragments proxy v-once v-memo Vue3.

    Which you used name. New Vue3 features list honestly used.

    SPA = ek HTML, Vue Router se views, full reload nahi. MPA = MAD1 Jinja har URL naya HTML.

    Vue Router: routes array, router-view, router-link, meta.auth + beforeEach guard. Dynamic /venues/:id → $route.params.id.

    Vite/CLI SFC + npm build dist/. CDN script tag, no SFC. Jo tumne use kiya wahi justify. Flask send_from_directory('dist') production pattern.

    Project example: Open SFC options vs setup.

  61. 61
    What is Celery?
    Times asked 19
    Official solution

    SimpleCelery = background naukri. HTTP request ko 10 second email bhejne ke liye mat rokna.

    Distributed task queue: aap function ko abhi nahi, worker process mein later/retry/schedule pe chalaate ho.

    MAD2 typical jobs: daily reminder mail, monthly HTML report, user-triggered CSV export.

    Web request 200ms hona chahiye. 10,000 emails request thread mein = timeout. Worker alag CPU pe kaam kare.

    Redis broker chahiye. Beat alag process schedule ke liye.

    Example

    @celery.task
def daily_reminder():
    for u in User.query.filter_by(active=True):
        send_mail(u.email, 'Book something today!')

    Project example: User Export click → 202 Accepted. Worker CSV + email. Daily 6pm Beat reminder.

    Viva tipWorker + Redis bina Beat ke user-triggered chalega. Scheduled jobs ke liye Beat bhi chahiye.

  62. 62
    How does Celery work?
    Times asked 1
    Official solution

    SimpleCelery = background naukri. HTTP request ko 10 second email bhejne ke liye mat rokna.

    Distributed task queue: aap function ko abhi nahi, worker process mein later/retry/schedule pe chalaate ho.

    MAD2 typical jobs: daily reminder mail, monthly HTML report, user-triggered CSV export.

    Web request 200ms hona chahiye. 10,000 emails request thread mein = timeout. Worker alag CPU pe kaam kare.

    Redis broker chahiye. Beat alag process schedule ke liye.

    Example

    @celery.task
def daily_reminder():
    for u in User.query.filter_by(active=True):
        send_mail(u.email, 'Book something today!')

    Project example: User Export click → 202 Accepted. Worker CSV + email. Daily 6pm Beat reminder.

    Viva tipWorker + Redis bina Beat ke user-triggered chalega. Scheduled jobs ke liye Beat bhi chahiye.

  63. 63
    How many Celery jobs/tasks have you implemented?
    Times asked 1
    Official solution

    SimpleGino jo implement: generally reminder, monthly, export. Beat schedule dikhao.

    Don't claim 5 if 2.

    Celery Python ka distributed task queue — HTTP request ko 10s email/CSV ke liye mat rokna.

    Flow: Flask .delay() → Redis broker → Worker execute. Beat alag process hai (clock): crontab padhke due time pe queue mein daalta hai. Beat khud mail nahi bhejta; Worker haath hai.

    MAD2 typical: daily reminder (Beat), monthly report (Beat), user Export CSV (button, Beat nahi). JS async/await browser event loop hai, Celery server-side process — mix mat karo.

    Demo: tin terminals — redis-server, celery worker, celery beat — plus Flask. MailHog :8025 inbox. Result backend se task SUCCESS poll optional.

    Project example: Open beat dict count keys + extra delay() tasks.

  64. 64
    What is Redis?
    Times asked 21
    Official solution

    SimpleRedis fridge pe sticky note hai — poori kitchen (database) kholne ki zarurat nahi.

    Redis in-memory key-value store hai. Data RAM mein rehta hai, isliye disk wale SQLite/Postgres se kai guna tez.

    MAD2 mein Redis do kaam karta hai:
    1) Cache — same venue/show/dashboard JSON baar-baar DB se mat nikaalo.
    2) Celery message broker — Flask task queue mein daalta hai, worker uthata hai.

    Source of truth database hi hai. Redis band ho to cache miss ho jaata hai aur Celery queue ruk sakti hai. Crash pe cache gayab ho sakta hai — isliye important data sirf Redis mein mat rakho.

    Example

    import redis
r = redis.Redis(host='localhost', port=6379, db=0)
r.set('venues', json.dumps(data), ex=30)
print(r.get('venues'))

    Project example: GET /api/venues pehle Redis dekho. Miss pe SQLAlchemy query, phir SET with timeout. Celery worker Redis list se daily reminder uthata hai.

    Viva tipCache ke liye db=1, broker ke liye db=0 rakhna smart hai taaki keys mix na hon. Viva mein redis-cli ping → PONG dikhana strong hai.

  65. 65
    What is caching?
    Times asked 23
    Official solution

    SimpleCache = pehli baar hisaab karke copy rakh lo, doosri baar copy dikha do.

    Baar-baar same expensive kaam (DB query, counting bookings) mat karo. Result Redis jaise store mein timeout ke saath rakh do.

    Cache hit: key mil gayi, DB skip. Cache miss: DB se lao, SET karo, return karo.

    Tradeoff: speed vs stale data. Admin naya venue add kare aur cache 50s ka ho to user purani list dekh sakta hai — isliye write pe invalidation zaroori hai.

    Browser cache, Flask-Caching, Redis alag layers hain. MAD2 examiner Redis + @cache.cached code dekhta hai.

    Example

    @cache.cached(timeout=50, query_string=True)
@app.route('/api/shows')
def shows():
    return jsonify([s.serialize() for s in Show.query.all()])

    Project example: Admin dashboard counts / venues list cache. Create/update/delete ke baad cache.delete('venues').

    Viva tipprint('DB queried') function ke andar laga ke miss/hit demo karo — hit pe print nahi chalega.

  66. 66
    Why do we use caching?
    Times asked 5
    Official solution

    SimpleCache isliye taaki 100 users same dashboard pe DB ko 100 baar na maror dein.

    Problem: repeated reads, slow page, extra load. Cache seconds ke liye snapshot deta hai.

    Nahi use karna: har second badalne wala live stock, user-private secret data bina soch ke (key mein user_id hona chahiye).

    Memoization caching ka subset hai (function args). HTTP 304 / browser cache alag layer.

    Redis in-memory key-value store hai — fridge pe sticky note, poori kitchen (SQL database) har baar mat kholo.

    MAD2 mein Redis do kaam: (1) cache — same venues/shows/dashboard JSON baar-baar DB se nahi (2) Celery broker — Flask task queue mein daalta hai, worker uthata hai.

    Flow: cache.get(key) → hit pe return, miss pe SQLAlchemy + SET with timeout. Admin write ke baad cache.delete, warna stale list.

    Source of truth database hi hai. Redis crash/band = cache miss (app chalni chahiye) + queue ruk sakti hai. Important bookings sirf Redis mein mat rakho.

    Alag: Redis ≠ Memcached (Celery broker nahi). Redis ≠ localStorage (woh browser). redis-cli ping → PONG viva proof.

    Project example: Shows list har user dekhta hai — perfect cache. Booking POST cache nahi — har baar write.

  67. 67
    Difference between Redis and Memcached.
    Times asked 1
    Official solution

    SimpleDono RAM cache. Redis zyada smart: lists, hashes, pub/sub, persistence, Celery broker.

    Memcached: simple key-value, yahi. Redis: data structures + expire + optional disk dump.

    MAD2 Redis choose — cache aur broker ek hi process. Memcached Celery nahi chalaata.

    Redis in-memory key-value store hai — fridge pe sticky note, poori kitchen (SQL database) har baar mat kholo.

    MAD2 mein Redis do kaam: (1) cache — same venues/shows/dashboard JSON baar-baar DB se nahi (2) Celery broker — Flask task queue mein daalta hai, worker uthata hai.

    Flow: cache.get(key) → hit pe return, miss pe SQLAlchemy + SET with timeout. Admin write ke baad cache.delete, warna stale list.

    Source of truth database hi hai. Redis crash/band = cache miss (app chalni chahiye) + queue ruk sakti hai. Important bookings sirf Redis mein mat rakho.

    Alag: Redis ≠ Memcached (Celery broker nahi). Redis ≠ localStorage (woh browser). redis-cli ping → PONG viva proof.

    Project example: Tumhare config mein CACHE_TYPE RedisCache, CELERY broker redis://. Memcached nahi.

    Viva tipMAD2 mein Redis isliye — cache + broker ek hi tool. Memcached Celery nahi chalaata.

  68. 68
    What are Webhooks?
    Times asked 7
    Official solution

    SimpleWebhook = woh tumhe call karta hai. API = tum unhe call karte ho.

    Payment success pe Stripe tumhare /webhooks/payment pe POST. Tum poll nahi karte.

    API pull, webhook push. WebSocket dono taraf live connection. SSE server→client stream.

    MAD2 mostly REST APIs. Webhook theory + example kaafi. Verify signature production mein.

    Example

    @app.route('/webhooks/payment', methods=['POST'])
def hook():
    event = request.json
    ...

    Project example: Agar implement nahi: 'course REST. Webhook design: POST /webhooks/booking-paid'.

    Viva tipAPI pull, webhook push. WebSocket dono taraf live. SSE server → client stream.

  69. 69
    Difference between Webhooks and APIs.
    Times asked 1
    Official solution

    SimpleWebhook = woh tumhe call karta hai. API = tum unhe call karte ho.

    Payment success pe Stripe tumhare /webhooks/payment pe POST. Tum poll nahi karte.

    API pull, webhook push. WebSocket dono taraf live connection. SSE server→client stream.

    MAD2 mostly REST APIs. Webhook theory + example kaafi. Verify signature production mein.

    Example

    @app.route('/webhooks/payment', methods=['POST'])
def hook():
    event = request.json
    ...

    Project example: Agar implement nahi: 'course REST. Webhook design: POST /webhooks/booking-paid'.

    Viva tipAPI pull, webhook push. WebSocket dono taraf live. SSE server → client stream.

  70. 70
    Difference between APIs, Webhooks, and WebSockets.
    Times asked 1
    Official solution

    SimpleAPI you call them. Webhook they call you. WebSocket both stay connected.

    Difference APIs Webhooks WebSockets.

    HTTP postcard (request-response). WebSocket phone call (dono taraf live). SSE radio (server→client stream). Webhook unka server tumhe POST karta hai (payment).

    MAD2 mostly REST. Live dashboard = poll + Redis cache kaafi. Agar implement nahi kiya to design bolo, jhoot mat.

    Project example: We REST. Others theory.

    Project example: We REST. Others theory.

  71. 71
    Difference between AJAX and Fetch.
    Times asked 1
    Official solution

    SimpleAJAX idea hai, Fetch uska modern tool, Axios optional wrapper.

    Examiner difference poochhe: AJAX umbrella, fetch function, axios package.

    HTTP verbs + status REST ki zabaan. GET read, POST create, PUT replace, PATCH partial, DELETE remove. GET typically no body.

    Status: 200 OK, 201 created, 202 accepted (Celery task), 400 bad input, 401 no/bad token, 403 role nahi, 404 missing, 409 conflict (double book), 500 server.

    AJAX/fetch page reload nahi. SPA poori isi pe. Postman se bina Vue ke API prove karo — examiner pasand.

    Project example: Tumhare components fetch ya axios — jo file hai woh dikhao.

  72. 72
    Difference between Local Storage and Session Storage.
    Times asked 2
    Official solution

    SimpleSame API getItem/setItem. SS tab close pe saaf. LS survive. Shared computer pe SS thoda safer.

    Token LS common. Session storage quiz in-progress bhi.

    Pehle 1-line definition, phir related MAD2 layer (Vue SFC / Flask route / models.py / tasks.py / Redis).

    4-line formula: input kahan se aaya, auth/validation kaunsa, DB ya cache ya Celery, kya return.

    Related mix mat karo — cache ≠ Celery, authentication ≠ authorization, v-if ≠ v-show, Beat ≠ Worker. Follow-up ke liye ek difference ready rakho.

    Project example: token localStorage. Don't mix randomly.

  73. 73
    Send an email whenever a new show is created.
    Times asked 1
    Official solution

    Simplecommit ke baad .delay(show.id) ya mail.send. Don't before commit (id nahi).

    Failure shouldn't rollback booking unless required.

    Pehle 1-line definition, phir related MAD2 layer (Vue SFC / Flask route / models.py / tasks.py / Redis).

    4-line formula: input kahan se aaya, auth/validation kaunsa, DB ya cache ya Celery, kya return.

    Related mix mat karo — cache ≠ Celery, authentication ≠ authorization, v-if ≠ v-show, Beat ≠ Worker. Follow-up ke liye ek difference ready rakho.

    Project example: create_show route end.

  74. 74
    Display the remaining number of tickets on the booking page.
    Times asked 1
    Official solution

    Simplecapacity - booked_sum server. Display remaining on booking page.

    Don't cache too long if live booking.

    Pehle 1-line definition, phir related MAD2 layer (Vue SFC / Flask route / models.py / tasks.py / Redis).

    4-line formula: input kahan se aaya, auth/validation kaunsa, DB ya cache ya Celery, kya return.

    Related mix mat karo — cache ≠ Celery, authentication ≠ authorization, v-if ≠ v-show, Beat ≠ Worker. Follow-up ke liye ek difference ready rakho.

    Project example: show.available field maintain.

    Project example: show.available field maintain.

  75. 75
    Show the number of tickets booked in each booking summary.
    Times asked 1
    Official solution

    Simplefunc.count / len(user.bookings). Header bookings page. Display total/current count. Tickets booked each summary.

    Show number tickets. Remaining tickets capacity-booked server compute.

    Pehle 1-line definition, phir related MAD2 layer (Vue SFC / Flask route / models.py / tasks.py / Redis).

    4-line formula: input kahan se aaya, auth/validation kaunsa, DB ya cache ya Celery, kya return.

    Related mix mat karo — cache ≠ Celery, authentication ≠ authorization, v-if ≠ v-show, Beat ≠ Worker. Follow-up ke liye ek difference ready rakho.

    Project example: serialize available. Don't trust client.

  76. 76
    Prevent duplicate category/service/campaign names.
    Times asked 1
    Official solution

    Simplequery.filter_by(name).first() 409. DB unique=True. Prevent duplicate category/product.

    Case: lower() before save.

    Pehle 1-line definition, phir related MAD2 layer (Vue SFC / Flask route / models.py / tasks.py / Redis).

    4-line formula: input kahan se aaya, auth/validation kaunsa, DB ya cache ya Celery, kya return.

    Related mix mat karo — cache ≠ Celery, authentication ≠ authorization, v-if ≠ v-show, Beat ≠ Worker. Follow-up ke liye ek difference ready rakho.

    Project example: unique constraint + 409.

    Project example: unique constraint + 409.

  77. 77
    Make uniqueness case-sensitive or case-insensitive as required.
    Times asked 1
    Official solution

    Simpleemail.lower() before save. Unique index. SQLite LIKE case. Make uniqueness case-sensitive/insensitive as required.

    Examiner specify.

    Pehle 1-line definition, phir related MAD2 layer (Vue SFC / Flask route / models.py / tasks.py / Redis).

    4-line formula: input kahan se aaya, auth/validation kaunsa, DB ya cache ya Celery, kya return.

    Related mix mat karo — cache ≠ Celery, authentication ≠ authorization, v-if ≠ v-show, Beat ≠ Worker. Follow-up ke liye ek difference ready rakho.

    Project example: normalize on write.

  78. 78
    Prevent duplicate products/categories/services from being added.
    Times asked 1
    Official solution

    Simplequery.filter_by(name).first() 409. DB unique=True. Prevent duplicate category/product.

    Case: lower() before save.

    Pehle 1-line definition, phir related MAD2 layer (Vue SFC / Flask route / models.py / tasks.py / Redis).

    4-line formula: input kahan se aaya, auth/validation kaunsa, DB ya cache ya Celery, kya return.

    Related mix mat karo — cache ≠ Celery, authentication ≠ authorization, v-if ≠ v-show, Beat ≠ Worker. Follow-up ke liye ek difference ready rakho.

    Project example: unique constraint + 409.

    Project example: unique constraint + 409.

  79. 79
    Validate manufacturing and expiry dates before saving.
    Times asked 1
    Official solution

    SimplePehle task repeat karke confirm, smallest diff, run, 2 line explain.

    Model? API? sirf CSS? Edge case ek. Docs if they allow.

    Examiner 2 cheezein: simple desi line + tumhare project ki exact file.

    Pehle ID, GitHub, portal ZIP. Phir run: Redis + Flask + worker + beat + Vue. Feature demo: login, RBAC, cache hit/miss, Celery mail, search.

    Line pe ungli: input kahan, kaunsa check, query/cache/task, JSON/UI. Copilot band. Jo nahi kiya honestly bolo + kaise add karte.

    Suggested flow1) Confirm
    2) Layer choose
    3) Change → demo
    4) Edge

    Example

    @app.route('/api/hello')
def hello():
    return jsonify(message='Hello World')

    Project example: Jo feature domain (parking/jobs/tickets) usi language mein variable names.

  80. 80
    Prevent users from booking the same service/appointment/parking slot twice.
    Times asked 1
    Official solution

    SimpleDoosri booking same slot: unique constraint + query.exists + 400 message.

    Frontend disable UX. Backend source of truth. Race: two users unique(slot).

    Pehle 1-line definition, phir related MAD2 layer (Vue SFC / Flask route / models.py / tasks.py / Redis).

    4-line formula: input kahan se aaya, auth/validation kaunsa, DB ya cache ya Celery, kya return.

    Related mix mat karo — cache ≠ Celery, authentication ≠ authorization, v-if ≠ v-show, Beat ≠ Worker. Follow-up ke liye ek difference ready rakho.

    Example

    if Booking.query.filter_by(user_id=uid, slot_id=sid).first():
    return jsonify(message='Already booked'), 400

    Project example: Click book twice. Second 400 Already booked. DB unique.

  81. 81
    Prevent users from booking multiple appointments at the same time.
    Times asked 1
    Official solution

    Simpleoverlap query same user time 400. Prevent multiple appointments same time.

    Frontend disable not enough.

    Pehle 1-line definition, phir related MAD2 layer (Vue SFC / Flask route / models.py / tasks.py / Redis).

    4-line formula: input kahan se aaya, auth/validation kaunsa, DB ya cache ya Celery, kya return.

    Related mix mat karo — cache ≠ Celery, authentication ≠ authorization, v-if ≠ v-show, Beat ≠ Worker. Follow-up ke liye ek difference ready rakho.

    Project example: Booking time range.

    Project example: Booking time range.

  82. 82
    Prevent users from creating drives for past dates.
    Times asked 1
    Official solution

    Simpleif drive.date < today abort 400. Frontend min=today. Prevent past dates.

    Both layers.

    Pehle 1-line definition, phir related MAD2 layer (Vue SFC / Flask route / models.py / tasks.py / Redis).

    4-line formula: input kahan se aaya, auth/validation kaunsa, DB ya cache ya Celery, kya return.

    Related mix mat karo — cache ≠ Celery, authentication ≠ authorization, v-if ≠ v-show, Beat ≠ Worker. Follow-up ke liye ek difference ready rakho.

    Project example: create drive.

    Project example: create drive.

  83. 83
    Prevent users from applying to multiple drives/jobs after selection.
    Times asked 1
    Official solution

    Simpleif selected_elsewhere 400. Unique where status=selected. Prevent applying multiple drives after selection.

    Backend.

    Pehle 1-line definition, phir related MAD2 layer (Vue SFC / Flask route / models.py / tasks.py / Redis).

    4-line formula: input kahan se aaya, auth/validation kaunsa, DB ya cache ya Celery, kya return.

    Related mix mat karo — cache ≠ Celery, authentication ≠ authorization, v-if ≠ v-show, Beat ≠ Worker. Follow-up ke liye ek difference ready rakho.

    Project example: Application model.

    Project example: Application model.

  84. 84
    Add an Admin activation route.
    Times asked 1
    Official solution

    SimpleGET/POST /activate/<token> set active True. Add Admin activation route.

    Auth admin.

    Examiner 2 cheezein: simple desi line + tumhare project ki exact file.

    Pehle ID, GitHub, portal ZIP. Phir run: Redis + Flask + worker + beat + Vue. Feature demo: login, RBAC, cache hit/miss, Celery mail, search.

    Line pe ungli: input kahan, kaunsa check, query/cache/task, JSON/UI. Copilot band. Jo nahi kiya honestly bolo + kaise add karte.

    Project example: new route.

  85. 85
    Add or modify review disable functionality.
    Times asked 1
    Official solution

    SimpleFlag can_review false after time/status. v-if + backend 400. Add or modify review disable.

    Both layers.

    Pehle 1-line definition, phir related MAD2 layer (Vue SFC / Flask route / models.py / tasks.py / Redis).

    4-line formula: input kahan se aaya, auth/validation kaunsa, DB ya cache ya Celery, kya return.

    Related mix mat karo — cache ≠ Celery, authentication ≠ authorization, v-if ≠ v-show, Beat ≠ Worker. Follow-up ke liye ek difference ready rakho.

    Project example: Review.vue.

    Project example: Review.vue.

  86. 86
    Accept or reject offers from the dashboard.
    Times asked 1
    Official solution

    SimpleAdmin PATCH application status. Notify email optional. Accept or reject offers dashboard.

    Demo.

    Pehle 1-line definition, phir related MAD2 layer (Vue SFC / Flask route / models.py / tasks.py / Redis).

    4-line formula: input kahan se aaya, auth/validation kaunsa, DB ya cache ya Celery, kya return.

    Related mix mat karo — cache ≠ Celery, authentication ≠ authorization, v-if ≠ v-show, Beat ≠ Worker. Follow-up ke liye ek difference ready rakho.

    Project example: Admin applications table.

    Project example: Admin applications table.

  87. 87
    Remove department matching criteria from the code.
    Times asked 1
    Official solution

    SimplePehle task repeat karke confirm, smallest diff, run, 2 line explain.

    Model? API? sirf CSS? Edge case ek. Docs if they allow.

    Examiner 2 cheezein: simple desi line + tumhare project ki exact file.

    Pehle ID, GitHub, portal ZIP. Phir run: Redis + Flask + worker + beat + Vue. Feature demo: login, RBAC, cache hit/miss, Celery mail, search.

    Line pe ungli: input kahan, kaunsa check, query/cache/task, JSON/UI. Copilot band. Jo nahi kiya honestly bolo + kaise add karte.

    Suggested flow1) Confirm
    2) Layer choose
    3) Change → demo
    4) Edge

    Example

    @app.route('/api/hello')
def hello():
    return jsonify(message='Hello World')

    Project example: Jo feature domain (parking/jobs/tickets) usi language mein variable names.

  88. 88
    Modify UI elements (button, color, card/table view, etc.).
    Times asked 1
    Official solution

    SimpleLive CSS/Vue: sabse chhota change jo dikhe. Logic/API mat todo unless poochhein.

    Inspect element se class dhoondo. btn-success, navbar bottom fixed, center flex.

    Save, refresh, dikhao. Break mat karo layout poora.

    Example

    <button class="btn btn-success">Login</button>
nav { position: fixed; bottom: 0; width: 100%; }
.wrap { min-height: 100vh; display: flex; align-items: center; justify-content: center; }

    Project example: Jo button/navbar poocha usi file (Navbar.vue / App.vue / css).

    Viva tipDevTools se element inspect. Logic/API mat todo unless poochhein.

  89. 89
    Debug and fix an existing bug.
    Times asked 1
    Official solution

    SimpleConsole/terminal padho, reproduce, smallest fix, regression na todo.

    Examiner patience. Think aloud. Copilot band.

    Pehle 1-line definition, phir related MAD2 layer (Vue SFC / Flask route / models.py / tasks.py / Redis).

    4-line formula: input kahan se aaya, auth/validation kaunsa, DB ya cache ya Celery, kya return.

    Related mix mat karo — cache ≠ Celery, authentication ≠ authorization, v-if ≠ v-show, Beat ≠ Worker. Follow-up ke liye ek difference ready rakho.

    Project example: F12 / celery log / flask traceback.

  90. 90
    Explain why you did not implement ticket cancellation.
    Times asked 1
    Official solution

    SimpleTime. Design: status cancelled, seats restore, refund none in course.

    Why not ticket cancellation.

    Pehle 1-line definition, phir related MAD2 layer (Vue SFC / Flask route / models.py / tasks.py / Redis).

    4-line formula: input kahan se aaya, auth/validation kaunsa, DB ya cache ya Celery, kya return.

    Related mix mat karo — cache ≠ Celery, authentication ≠ authorization, v-if ≠ v-show, Beat ≠ Worker. Follow-up ke liye ek difference ready rakho.

    Project example: Would add PATCH status + available++.

    Project example: Would add PATCH status + available++.

  91. 91
    Explain why some project features were not implemented.
    Times asked 1
    Official solution

    SimpleJo nahi kiya sach + reason + kaise add (model API Vue). Bluff worse.

    Core feature not implemented? Milestone vs code.

    Pehle 1-line definition, phir related MAD2 layer (Vue SFC / Flask route / models.py / tasks.py / Redis).

    4-line formula: input kahan se aaya, auth/validation kaunsa, DB ya cache ya Celery, kya return.

    Related mix mat karo — cache ≠ Celery, authentication ≠ authorization, v-if ≠ v-show, Beat ≠ Worker. Follow-up ke liye ek difference ready rakho.

    Project example: If complete, polish only. If missing export, plan celery csv.

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  1. 1
    What is Vue.js?
    Times asked 5
    Official solution

    SimpleVue.js frontend framework — reactive UI components. MAD2 mein common, MAD1 optional.

    Component: reusable UI (Navbar.vue) + data + template.
    Props: parent → child data. Child → parent: $emit('update', val).
    Slots: parent child ke andar extra HTML daal sakta hai.
    Lifecycle: created (data setup), mounted (DOM ready — API call), updated, unmounted.
    v-model two-way bind. Vue Router SPA routes (routes.js). Vuex/Pinia global state; mutations sync change, actions async.
    Standalone component: khud ke saath compile, parent register kam.

  2. 2
    Are you using Vue CLI or Vue CDN?
    Times asked 1
    Official solution

    SimpleCDN se Vue script tag, CLI se full project (webpack/vite, SFC).

    CDN: <script src='https://unpkg.com/vue@3'></script> — setup 1 minute, MAD2 proto ke liye theek, offline toot sakta hai.
    CLI (vue create / Vite): .vue files, components, router, build step. Production apps ke liye better.
    Standalone/SFC components CLI/Vite mein milte hain.

  3. 3
    Difference between Vue CLI and Vue CDN.
    Times asked 5
    Official solution

    SimpleCDN se Vue script tag, CLI se full project (webpack/vite, SFC).

    CDN: <script src='https://unpkg.com/vue@3'></script> — setup 1 minute, MAD2 proto ke liye theek, offline toot sakta hai.
    CLI (vue create / Vite): .vue files, components, router, build step. Production apps ke liye better.
    Standalone/SFC components CLI/Vite mein milte hain.

  4. 4
    What are Vue Lifecycle Hooks? Explain each.
    Times asked 1
    Official solution

    SimpleVue.js frontend framework — reactive UI components. MAD2 mein common, MAD1 optional.

    Component: reusable UI (Navbar.vue) + data + template.
    Props: parent → child data. Child → parent: $emit('update', val).
    Slots: parent child ke andar extra HTML daal sakta hai.
    Lifecycle: created (data setup), mounted (DOM ready — API call), updated, unmounted.
    v-model two-way bind. Vue Router SPA routes (routes.js). Vuex/Pinia global state; mutations sync change, actions async.
    Standalone component: khud ke saath compile, parent register kam.

  5. 5
    Difference between v-if and v-show.
    Times asked 10
    Official solution

    Simplev-if element DOM se hataata/jodata hai, v-show sirf CSS display toggle karta hai.

    v-if='isAdmin' → false ho to element exist hi nahi. Costly toggle, lekin hidden data DOM mein nahi.
    v-show='open' → display:none. Fast toggle, element hamesha DOM mein.

    Rare condition: v-if. Bar-bar toggle (dropdown): v-show.

  6. 6
    Difference between v-model and v-bind.
    Times asked 4
    Official solution

    Simplev-bind one-way data → view, v-model two-way (input ke saath sync).

    <img v-bind:src='url'> ya <img :src='url'>  — url change to image change, image se url nahi.
<input v-model='email'> — type karo to email variable turant update.

    v-model = :value + @input ka shortcut. Forms mein v-model, attributes mein v-bind.

  7. 7
    What are Props in Vue?
    Times asked 5
    Official solution

    SimpleVue.js frontend framework — reactive UI components. MAD2 mein common, MAD1 optional.

    Component: reusable UI (Navbar.vue) + data + template.
    Props: parent → child data. Child → parent: $emit('update', val).
    Slots: parent child ke andar extra HTML daal sakta hai.
    Lifecycle: created (data setup), mounted (DOM ready — API call), updated, unmounted.
    v-model two-way bind. Vue Router SPA routes (routes.js). Vuex/Pinia global state; mutations sync change, actions async.
    Standalone component: khud ke saath compile, parent register kam.

  8. 8
    What are Slots in Vue?
    Times asked 2
    Official solution

    SimpleVue.js frontend framework — reactive UI components. MAD2 mein common, MAD1 optional.

    Component: reusable UI (Navbar.vue) + data + template.
    Props: parent → child data. Child → parent: $emit('update', val).
    Slots: parent child ke andar extra HTML daal sakta hai.
    Lifecycle: created (data setup), mounted (DOM ready — API call), updated, unmounted.
    v-model two-way bind. Vue Router SPA routes (routes.js). Vuex/Pinia global state; mutations sync change, actions async.
    Standalone component: khud ke saath compile, parent register kam.

  9. 9
    How do you pass data from Child Component to Parent Component?
    Times asked 1
    Official solution

    SimpleVue.js frontend framework — reactive UI components. MAD2 mein common, MAD1 optional.

    Component: reusable UI (Navbar.vue) + data + template.
    Props: parent → child data. Child → parent: $emit('update', val).
    Slots: parent child ke andar extra HTML daal sakta hai.
    Lifecycle: created (data setup), mounted (DOM ready — API call), updated, unmounted.
    v-model two-way bind. Vue Router SPA routes (routes.js). Vuex/Pinia global state; mutations sync change, actions async.
    Standalone component: khud ke saath compile, parent register kam.

  10. 10
    What is ORM?
    Times asked 49
    Official solution

    SimpleORM = Object Relational Mapping. Database tables ko Python classes/objects se map karta hai, raw SQL kam likhni padti hai.

    Bina ORM: cursor.execute('SELECT * FROM user WHERE id=?', [5])
    ORM se: User.query.get(5) ya db.session.get(User, 5)

    Example model

    class User(db.Model):
    id = db.Column(db.Integer, primary_key=True)
    email = db.Column(db.String(120), unique=True)

    FaydePython mein soch sakte ho, SQL injection se protection (parameterized), relationships easy, DB switch thoda aasan.

    Nuksaancomplex queries slow/abstract, seekhne ki layer extra, kabhi raw SQL phir bhi chahiye.

    MAD1: SQLAlchemy (Flask-SQLAlchemy). Tables db.create_all() ya migrations se banti hain.

  11. 11
    Are you using ORM?
    Times asked 1
    Official solution

    SimpleORM = Object Relational Mapping. Database tables ko Python classes/objects se map karta hai, raw SQL kam likhni padti hai.

    Bina ORM: cursor.execute('SELECT * FROM user WHERE id=?', [5])
    ORM se: User.query.get(5) ya db.session.get(User, 5)

    Example model

    class User(db.Model):
    id = db.Column(db.Integer, primary_key=True)
    email = db.Column(db.String(120), unique=True)

    FaydePython mein soch sakte ho, SQL injection se protection (parameterized), relationships easy, DB switch thoda aasan.

    Nuksaancomplex queries slow/abstract, seekhne ki layer extra, kabhi raw SQL phir bhi chahiye.

    MAD1: SQLAlchemy (Flask-SQLAlchemy). Tables db.create_all() ya migrations se banti hain.

  12. 12
    Advantages of ORM.
    Times asked 5
    Official solution

    SimpleORM = Object Relational Mapping. Database tables ko Python classes/objects se map karta hai, raw SQL kam likhni padti hai.

    Bina ORM: cursor.execute('SELECT * FROM user WHERE id=?', [5])
    ORM se: User.query.get(5) ya db.session.get(User, 5)

    Example model

    class User(db.Model):
    id = db.Column(db.Integer, primary_key=True)
    email = db.Column(db.String(120), unique=True)

    FaydePython mein soch sakte ho, SQL injection se protection (parameterized), relationships easy, DB switch thoda aasan.

    Nuksaancomplex queries slow/abstract, seekhne ki layer extra, kabhi raw SQL phir bhi chahiye.

    MAD1: SQLAlchemy (Flask-SQLAlchemy). Tables db.create_all() ya migrations se banti hain.

  13. 13
    What is SQLAlchemy?
    Times asked 8
    Official solution

    SimpleSQLAlchemy Python ka sabse popular ORM hai. MAD1 mein Flask-SQLAlchemy wrapper use hota hai.

    db = SQLAlchemy(app)

    class Book(db.Model):
    id = db.Column(db.Integer, primary_key=True)
    title = db.Column(db.String(80), nullable=False)

Operations: db.session.add(obj), .commit(), .delete(obj), Model.query.all(), .filter_by(), .get_or_404(id).
db.Model ek class hai (function nahi). db object engine + session + metadata hold karta hai.

    SQLALCHEMY_TRACK_MODIFICATIONS=False extra signals band karta hai, performance warning hatati hai.

  14. 14
    Flask-Security vs JWT.
    Times asked 1
    Official solution

    SimpleJWT = JSON Web Token — signed string jisme user id/role hota hai. Har request header mein jaata hai. Session server pe store, JWT client pe.

    Login → server token deta hai → Authorization: Bearer <token>
    Payload: {sub: user_id, role: admin, exp: ...} — padha ja sakta hai, change nahi (signature).
    Session: browser cookie, server-rendered Flask ke liye simple.
    Token: mobile/Vue SPA, scaling (server memory nahi). Store: memory/httpOnly cookie, localStorage XSS risk.
    MAD1 mostly session. Flask-Security session+login, JWT APIs ke liye.

  15. 15
    What security mechanism have you used?
    Times asked 2
    Official solution

    SimplePassword DB mein plain text mat rakho — hash store karo jo reverse nahi hota.

    from werkzeug.security import generate_password_hash, check_password_hash
user.password = generate_password_hash(request.form['password'])
check_password_hash(user.password, form_password)

    Hashing ≠ encryption. Leak pe bhi original password nahi milta (easy passwords rainbow table se — isliye salt + strong hash).
    Column String(200) kyunki hash lamba hota hai. unique=True password pe mat lagao.

  16. 16
    What are Webhooks?
    Times asked 7
    Official solution

    SimpleWebSocket do-tarfa live connection, Webhook 'kisi event pe URL hit karo'.

    WebSocket: chat, live scores. Connection open rehti hai.
    Webhook: payment success pe Stripe tumhari /webhook URL POST karta hai. Connection nahi, ek HTTP call.
    MAD1 mein usually nahi hote; REST request-response hota hai.

  17. 17
    Show how Celery works in your project.
    Times asked 1
    Official solution

    SimpleCelery background tasks (email, CSV, reports) async chalaata hai. Redis broker/queue + cache.

    User 'Export' click → Celery task queue → Redis message → worker CSV banaata hai → user baad mein download.
    Saath isliye: Celery ko broker chahiye, Redis tez in-memory. MAD2 topic zyada, MAD1 mein optional.
    Priority: task queues/routing. Caching: Redis mein key-value, DB hits kam.
    Pub/Sub: publisher channel pe message, subscribers sunte hain — Redis yeh bhi karta hai.

  18. 18
    Replace a Card View with a Table View on a page.
    Times asked 1
    Official solution

    Simpleexaminer UI tweak maangta hai — CSS class ya inline, instantly dikhao.

    Button color: <button class='btn btn-success'> ya style='background:#22c55e;color:#fff'
    Navbar: navbar-dark bg-success / style='background:yellow' / fixed-bottom se neeche.
    Center: .wrap { display:flex; justify-content:center; align-items:center; min-height:100vh; }
    text-align:center heading ke liye. Bootstrap: d-flex justify-content-center, mx-auto, text-center.
    Hover: .btn:hover { opacity:0.8; transform:scale(1.02); }
    Half width: class='col-6' ya width:50%. Row→column: flex-direction:column / col-12 stack.
    Login card: card shadow p-4 mx-auto (max-width:400px).
    Table header green: th { background:green; color:white; } Bold column: td:nth-child(2){font-weight:bold}
    Box shadow: box-shadow: 4px 4px 12px rgba(0,0,0,.3);
    Background image: body { background: url('/static/bg.jpg') center/cover; }
    Reset button: <button type='reset'>Clear</button>
    Move button: ms-auto / position / flex order.
    Jinja dashboard heading: <h1>{{ user.name }}'s Dashboard</h1>

  19. 19
    Debug and fix a model issue.
    Times asked 1
    Official solution

    Yeh MAD-1 viva question tumhare project ke context se linked hai. Short answer is structure se do:

    Pehle 1 line definition/purpose, phir tumhare project ka example, phir chhota code/flow.

    Typical Flask flowBrowser request → @app.route controller → SQLAlchemy model/DB → Jinja template response.

    Auth: session['user_id'] + role check. CRUD: add/commit, query.all, field update, delete.
    Live change maange to: related model → route → template, phir browser refresh karke dikhao.

    Example (generic create):
    obj = Model(name=request.form.get('name'))

    db.session.add(obj); db.session.commit()
return redirect(url_for('list_view'))
  20. 20
    Perform a random code modification (project-specific).
    Times asked 1
    Official solution

    Yeh feature demo hai. Account ready rakho, steps bol ke dikhao.

    Role ke hisaab login → action (create/approve/book) → DB/UI pe result → edge case (fail when slots=0 / blacklisted).
    Do browser windows: admin + user. Search/filter alag se dikhao.
    Agar feature nahi hai to sach bolo aur 2 minute mein kaise add karoge (query + template) explain karo.

  21. 21
    Demonstrate Celery working.
    Times asked 1
    Official solution

    SimpleCelery background tasks (email, CSV, reports) async chalaata hai. Redis broker/queue + cache.

    User 'Export' click → Celery task queue → Redis message → worker CSV banaata hai → user baad mein download.
    Saath isliye: Celery ko broker chahiye, Redis tez in-memory. MAD2 topic zyada, MAD1 mein optional.
    Priority: task queues/routing. Caching: Redis mein key-value, DB hits kam.
    Pub/Sub: publisher channel pe message, subscribers sunte hain — Redis yeh bhi karta hai.

  22. 22
    Explain the Vue frontend implementation.
    Times asked 1
    Official solution

    SimpleVue.js frontend framework — reactive UI components. MAD2 mein common, MAD1 optional.

    Component: reusable UI (Navbar.vue) + data + template.
    Props: parent → child data. Child → parent: $emit('update', val).
    Slots: parent child ke andar extra HTML daal sakta hai.
    Lifecycle: created (data setup), mounted (DOM ready — API call), updated, unmounted.
    v-model two-way bind. Vue Router SPA routes (routes.js). Vuex/Pinia global state; mutations sync change, actions async.
    Standalone component: khud ke saath compile, parent register kam.

  23. 23
    Explain the backend implementation.
    Times asked 2
    Official solution

    Examiner code pe ungli rakh ke poochta hai — panic mat karo, 4-line formula bolo.

    1) Yeh file/line kya role hai (model / route / template / config)?
    2) Input kahan se aata hai (form, URL <id>, session, JSON)?
    3) DB pe kya query/write?
    4) Output kya (render_template / redirect / jsonify)?

    Example

    @app.route('/book/<int:id>', methods=['POST']) — logged-in user session se, trek id URL se, Booking add, slots--, redirect history.

    Unknown line: imports (request, url_for, flash), decorators, if checks, commit — har keyword ka reason ready rakho.

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