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Question sets

  1. 1
    gave one coding question (too hard) _ make change to DB (show no of openings) - > take input -> create backend -> create frontend route (messed up in panic - project bursted - cooked)
    Times asked 1
    Official solution

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

  2. 2
    theory - around 20 Theory questions
    Times asked 1
    Official solution

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

  3. 3
    - explain your architechture
    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.

  4. 4
    •⁠ ⁠explain ye route, vo route
    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.

  5. 5
    •⁠ ⁠⁠explain search functionality - explain route in detail
    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()
  6. 6
    •⁠ ⁠⁠how is blackisted button backend works
    Times asked 1
    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.

  7. 7
    •⁠ ⁠⁠and some 10 theory questions more, as compensation of my performance in coding questions
    Times asked 1
    Official solution

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

  8. 8
    allowed to use cheat materials like notepad content , commands etc.
    Times asked 1
    Official solution

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

Advice: gave advice to work on debugging skills, more on implementation side, said concepts are good. guy is patient, calm, helped in between where stuck. advice, just say no if you dont know, dont keep attempting. keep strong hold of theory and your project, if you are sure, you gonna fuck up in coding part. all the best to anyone facing this guy. better than any so called POD guys
  1. 1
    Level 1 -
    Times asked 1
    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
    1)Download project from portal and demonstrate according to her instructions
    Times asked 1
    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

  3. 3
    2)Explain response , session from import statement
    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().

  4. 4
    3)Show the route which is used by students to apply for drives
    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.

  5. 5
    4)Explain how data is sent from backend to frontend
    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.

  6. 6
    5)Open Notepad - write simple route to accept data from backend
    Times asked 1
    Official solution

    SimpleLive Flask coding: chhota route likho, save, browser/curl se test. Syntax error terminal mein padho.

    Example

    @app.route('/ping')
    def ping():
        return jsonify(ok=True)
    
    @app.route('/even/<int:n>')
    def even(n):
        return 'even' if n % 2 == 0 else 'odd'
  7. 7
    6)Write html code for simple button
    Times asked 1
    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: She was supportive and prepare basic questions for level 1
  1. 1
    - Crazy viva
    Times asked 1
    Official solution

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

  2. 2
    asked what did you built?
    Times asked 1
    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
    write one whole page again like the base.html
    Times asked 1
    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
    what is the difference between PostgreSQL and SQL Lite
    Times asked 1
    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.

  5. 5
    around 20 different code changes
    Times asked 1
    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
    viva lasted 75 minutes
    Times asked 1
    Official solution

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

Advice: save your souls. the proctor was Shri Krishna Sir himself.
  1. 1
    First asked to show IITM ID verification.
    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
    Then asked for complete project demo.
    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
    How are controllers communicating/interacting with each other?
    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.

  4. 4
    I explained all tables and relationships between tables.
    Times asked 1
    Official solution

    Simpledb.relationship se object graph: lot.spots, booking.user. backref reverse side auto deta hai.

    Example

    spots = db.relationship('Spot', backref='lot', cascade='all, delete-orphan')
  5. 5
    Types of CSS and which one is better?
    Times asked 1
    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.

  1. 1
    He came 5-7 mins late
    Times asked 1
    Official solution

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

  2. 2
    Asked for my id and demo
    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
    He went off for 4 mins cuz he got a call ig
    Times asked 1
    Official solution

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

  4. 4
    No coding tasks. Very chill. The viva was only 15 mins or less than that. Go through the ques he asked previously
    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.

Advice: He's super chill. And he will repeat his questions if you didn't hear it properly. Focus on SPA. Just go through the questions he asked prev and there u go~
  1. 1
    Do some modification in code so that if company have a one active place when drive he cannot create another drive
    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
    Create flask app and write a function so that it show all the unapprove drive
    Times asked 1
    Official solution

    SimpleLive Flask coding: chhota route likho, save, browser/curl se test. Syntax error terminal mein padho.

    Example

    @app.route('/ping')
    def ping():
        return jsonify(ok=True)
    
    @app.route('/even/<int:n>')
    def even(n):
        return 'even' if n % 2 == 0 else 'odd'
  3. 3
    What is rest full and restless API
    Times asked 1
    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
    What is https http difference
    Times asked 1
    Official solution

    SimpleHTTP postcard (koi padh le). HTTPS envelope (TLS lock).

    Same headers, encrypted channel. MITM se password/token bachao. Local viva HTTP OK.

    HTTP/1.1 version keep-alive. TCP neeche, TLS security layer, SMTP mail alag.

    Browser + API ke beech extra darwaze: CORS origin allow, HTTPS encrypt transit, CSRF cookie-auto-send attack, XSS HTML inject, SQL injection raw query.

    MAD2 SPA: Vue :8080 Flask :5000 → Flask-CORS. JWT localStorage XSS se chori ho sakta — v-html user input pe avoid. Password Network tab localhost pe dikhega; prod HTTPS, response mein password echo nahi.

    401 unauthenticated, 403 unauthorized, 400 validation. Hash one-way — SHA decrypt nahi hota. Secret key .env, GitHub pe nahi.

    Project example: Dev localhost http. Production https:// + cert.

    Viva tipProtocols: HTTP/HTTPS app, TCP transport, TLS security, SMTP mail. HTTP/1.1 version — persistent connections.

  1. 1
    Asked whether I would like to do checksum or download from portal
    Times asked 1
    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
    Application Introduction and how it works
    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.
  3. 3
    GET vs POST
    Times asked 2
    Official solution

    SimpleGET data read/show karta hai (idempotent). POST create/submit karta hai (form).

    Example

    @app.route('/login', methods=['GET', 'POST'])
    def login():
        if request.method == 'POST':
            # validate + session
            ...
        return render_template('login.html')
  4. 4
    Asked to paste the link in any other Browser and asked why is it asking for log in again. Asked to show that part of code where I implemented that feature.
    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.

  5. 5
    Change the button color in Company Dashboard
    Times asked 1
    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.

  6. 6
    Write a route for admin to see any unapproved drives
    Times asked 1
    Official solution

    SimpleLive Flask coding: chhota route likho, save, browser/curl se test. Syntax error terminal mein padho.

    Example

    @app.route('/ping')
    def ping():
        return jsonify(ok=True)
    
    @app.route('/even/<int:n>')
    def even(n):
        return 'even' if n % 2 == 0 else 'odd'
  7. 7
    Locate the code where admin can see companies
    Times asked 1
    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: Know your Code Well
  1. 1
    Explain your project , models.py, what is flask, Jinja, Authentication vs Authorization. CODING changes - Make button color green, create route to search approved companies.
    Times asked 1
    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)
Advice: Proctor was polite. Gives u time to answer .
  1. 1
    After that as I created a new student so he asked me to go on to the registration page back and asked me to add the same email, username which I just created for the previous question so I did that but could not be able to take that registration as I defined unique username and email so it gave a flash (user exists)so he said ok
    Times asked 1
    Official solution

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

  2. 2
    Then he asked me to go to the company dashboard again and asked to see in the application section of that drive to view if that students application is there or not.
    Times asked 1
    Official solution

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

  3. 3
    Then he asked that in that table in company_dashboard where I stored the ongoing drive details, add another column for the No. Of Application for each drives I started but forget how to count the application so he asked first of to use Google for syntax but I was trying so he told to use( | length) the. It worked.
    Times asked 1
    Official solution

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

  4. 4
    Then he asked to go to code and explain how I connected my flask app to database so I showed all the steps
    Times asked 1
    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.

  5. 5
    Then he asked to explain Authorization and Authentication in my code
    Times asked 1
    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)
  6. 6
    Then he asked from the login route, what is the http method when we are displaying the flash message
    Times asked 1
    Official solution

    Simpleredirect dusre URL pe bhejta hai. flash one-time message session mein rakh ke next page pe dikhata hai.

    Example

    flash('Login successful', 'success')
    return redirect(url_for('user.dashboard'))
  7. 7
    Then he asked go to any other route for authorisation I used manually checking like for each route(if user_email is in session and whether the role is assigned to access the page details) for this he asked whether we can replace it with any simpler alternative I told for this we can use the flask-login and using decorator function @login-required then he said ok
    Times asked 1
    Official solution

    Simplelogin_required jaisa decorator protected routes pe: session nahi to login redirect.

    Example

    def login_required(fn):
        @wraps(fn)
        def wrapper(*a, **k):
            if 'user_id' not in session:
                return redirect(url_for('auth.login'))
            return fn(*a, **k)
        return wrapper
  8. 8
    Then he asked difference between POST, PUT, PATCH
    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.

  9. 9
    Then he asked whether I used bootstrap I said yes then he asked how so I showed the link which I used in base.html
    Times asked 1
    Official solution

    SimpleBootstrap CSS framework — grid, navbar, buttons jaldi. CDN ya downloaded files.

  10. 10
    He asked what is bootstrap why I used this
    Times asked 1
    Official solution

    SimpleBootstrap CSS framework — grid, navbar, buttons jaldi. CDN ya downloaded files.

  11. 11
    Then he asked as I have used the link so if there is weak internet or not internet connection so still this bootstrap will work or not, app will work or not. I said yes but then he said are you sure so I said I didn't tried it yet so he said ok
    Times asked 1
    Official solution

    SimpleBootstrap CSS framework — grid, navbar, buttons jaldi. CDN ya downloaded files.

  12. 12
    Then he asked go to company_dashboard on browser -> create drive option and he asked if I want to add another field for location or any other field so what will happen to other previously created drives
    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.

  13. 13
    Then he asked have you heard of catching I said no
    Times asked 1
    Official solution

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

Advice: He was kind and friendly. He was mainly interested in knowing whether the student has completed the project independently and know their own project whatever they have used and if used the AI or some tool so just know what you are using and what that line of code is doing.
  1. 1
    Give a brief demonstration of your 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.

  2. 2
    After I explained he asked to go back again to student_dashboard and asked to align the flash message to center as it was on the top-left so I did that.
    Times asked 2
    Official solution

    Simpleredirect dusre URL pe bhejta hai. flash one-time message session mein rakh ke next page pe dikhata hai.

    Example

    flash('Login successful', 'success')
    return redirect(url_for('user.dashboard'))
  3. 3
    After this in navbar I used the links and Pipe symbol instead of buttons for [Profile | Edit Profile | Logout] so he asked to change these links into a buttons so I did that.
    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
    Then he asked me to go on database file, I thought he is asking for database.py (but it was models.py ) so he asked me from database.py only that what is the use of this file, why I used ORM ?
    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
  5. 5
    Then he asked http methods for CRUD operations but I thought he is asking me to explain what are CRUD operations so I started but then he said methods so I explained the GET, POST, PUT, DELETE then he asked have you heard of PATCH then I explained it then he said ok, Thank you, That's all from my side
    Times asked 1
    Official solution

    SimpleGET data read/show karta hai (idempotent). POST create/submit karta hai (form).

    Example

    @app.route('/login', methods=['GET', 'POST'])
    def login():
        if request.method == 'POST':
            # validate + session
            ...
        return render_template('login.html')
Advice: Very kind proctor, tries to be humble and friendly with students so that we can answer correctly. Don't get nervous take your time and explain everything, he listens everything patiently.
Maintaine By Lazy IITians Team + IITM BS students Regualr for More data you have