Lazy IITians – Viva Prep

Aug 14, 2026

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1

Show id

Times asked 3

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
Install and do the setup

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
What is Rest api

Times asked 1
Official solution

SimpleAPI = Application Programming Interface — do systems predefined rules se baat karti hain. REST API HTTP + JSON use karti hai.
Controller/route HTML bhi return kar sakta hai. REST API generally JSON return karti hai, frontend alag ho (Vue/Postman).
Example
```
@app.route('/api/users/<int:id>')
def get_user(id):
    u = User.query.get_or_404(id)
    return jsonify(id=u.id, name=u.name)
```
MAD1 HTML apps mein 'API' kabhi-kabhi routes ko hi keh dete hain. Agar Vue nahi to bolo: server-rendered Flask, JSON APIs optional.
Boolean return: technically jsonify(True) ho sakta hai, lekin meaningful JSON object better. Flask view None return kare to error.
Test: Postman se GET/POST.
Parsing: request.get_json() body se, request.args query se.
4
Opened worker and 3 lines in that describe 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.
5

Composition api and optional ai

Times asked 2

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.
6

If students cgpa is not greater than 7.5 disabled him to apply for job ( which i didn't) Mixed mood of proctor Thankyou

Times asked 2

Official solution

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

Advice: See the javascript code a little bit and enjoy I asked him for passed or failed he said he can't disclose that.

See reviews Level1_91 MAD1 Level 1

Aug 14, 2026

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1

He asked for demo (He himself told me the flow , like login as company , then approve as admin , ...)

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
Then he asked me to show the code for sending the approval mail (after a company is successfully approved by admin)

Times asked 2
Official solution

SimpleSMTP = Simple Mail Transfer Protocol — email bhejne ka standard. Flask-Mail / smtplib se reminders/reports.
Example
```
from flask_mail import Message
msg = Message('Subject', recipients=[user.email])
msg.body = 'Hello'
mail.send(msg)
```
Viva tipViva mein MailHog/inbox dikhao. Port 587 TLS common; local pe MailHog 1025.
3

Then he asked many pieces of code like where is this , that etc...

Times asked 2

Official solution

SimpleViva wrap-up hai. Short thanks + confirm submission ZIP latest hai.
4

Then he asked me ports like what is 400, 401 , 200 , 403 etc....

Times asked 2

Official solution

SimpleViva wrap-up hai. Short thanks + confirm submission ZIP latest hai.
5
Then he asked me to show the sent mail( he also approves if you show him already sent mails that you've tested and you can show that from your inbox)

Times asked 2
Official solution

SimpleSMTP = Simple Mail Transfer Protocol — email bhejne ka standard. Flask-Mail / smtplib se reminders/reports.
Example
```
from flask_mail import Message
msg = Message('Subject', recipients=[user.email])
msg.body = 'Hello'
mail.send(msg)
```
Viva tipViva mein MailHog/inbox dikhao. Port 587 TLS common; local pe MailHog 1025.
6
Have you used ai ( I coded the blueprint and routes myself and used ai to refine the code and generate the messages to be send in the mail) and he said ok

Times asked 2
Official solution

SimpleBlueprint se app ko modules mein todte ho — auth, admin, user alag files. Scale + clean structure.
Example
```
auth_bp = Blueprint('auth', __name__, url_prefix='/auth')

@auth_bp.route('/login')
def login(): ...

app.register_blueprint(auth_bp)
```
Viva tipViva: 'kyun blueprint?' → separation of concerns, badi app maintainable.
7

He asked me to code the route to display all unapproved drives

Times asked 2

Official solution

SimpleViva wrap-up hai. Short thanks + confirm submission ZIP latest hai.
8
Then he asked me to change the color and size of a button

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.
9

Finaly he asked...

Times asked 2

Official solution

SimpleViva wrap-up hai. Short thanks + confirm submission ZIP latest hai.
10

What is MVC

Times asked 4

Official solution

SimpleMVC = Model-View-Controller. Code ko 3 hisson mein baant ta hai taaki mix na ho.
Model: data + DB. models.py — User, Trek, Booking classes.
View: jo user dekhta hai. templates/*.html + Jinja.
Controller: beech ka logic. routes / app.py — request lo, model se data, view ko do.
Example flow (register):
Browser form POST → Controller register() → User model save → redirect → View dashboard.html
Draw: Browser → Controller → Model → DB, phir Controller → View → Browser.
ORM na ho to bhi MVC ho sakta hai — Model raw SQL functions ho sakte hain. Structure matter karta hai, library nahi.
MVP/MVVM doosri architectures hain; MAD1 mein MVC expected hai.

Advice: He was very nonchalant , he will ask a question and won't ask any cross question until you answer it or directly tell him you don't know... Viva was exactly for 30 minutes One thing that can impress him is , whatever functionality he asks , know where that part of code is , in your project . He won't talk much , but he is not very strict too.... The coding questions are repeated . So make sure to go through the spreadsheet..Btw mine was level 1 He is very patient and waits for you to search your file . Just don't stay silent

See reviews Viva18 MAD1 Level 1

Aug 14, 2026

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1
1)Asked to run the project in the portal

Times asked 2
Official solution

SimpleMAD2 orchestra: Redis, Flask, Vue, worker, beat — 5 terminals.
Ports: Flask 5000, Vite 8080/5173, Redis 6379. CORS isliye.
Order: Redis first. Worker bina Redis fail. Beat bina worker queue bharti.
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
```
redis-server
flask run --port 5000
npm run serve
celery -A app.celery worker -l info
celery -A app.celery beat -l info
```
Project example: README local_run. Dikhao 5 processes + browser two roles.
Viva tipPorts batao: Flask 5000, Vite 8080/5173, Redis 6379. CORS isi liye chahiye.
2

Asked to explain the front-end file

Times asked 2

Official solution

SimpleMAD1 frontend usually Jinja templates + HTML/CSS/Bootstrap (+ thoda JS). MAD2 pe Vue ho to clearly bolo.
3

Asked to write the api roots where trekkers booking regarding

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.
4

Asked to explain database columns

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

Asked that have u stopped the trekkers count for booking it

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.
6
Asked csl or CdS which one u have used

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.
7

Asked to explain the users dashboard in the admin dashboard

Times asked 2

Official solution

SimpleRoutes/controllers URLs handle karte hain. app.py app banata hai, models.py data, templates/ views, static/ CSS-JS.
Typical structure:
app.py / __init__.py → Flask app, db.init, register blueprints
models.py → tables
routes.py / views → @app.route functions
templates/ → Jinja HTML
static/ → css, images
instance/*.db → SQLite
Ek route explain karne ka template:
1) URL + methods 2) Auth/role check 3) Form/query se data 4) Business rule (duplicate, slots) 5) db.session 6) render ya redirect
Example GET+POST same route: GET form, POST save.
Data HTML se: form name= → request.form. Data HTML ko: render_template(..., items=query).
Nayi .py file: import karke use karo, warna Flask ko pata nahi. Folder rename: imports/paths/templates check.
8

Asked how much ai percentage have u used in particular in front-end, backend etc

Times asked 2

Official solution

SimpleSach % + kahan + kaise verify + kya seekha. Report se contradict mat.
Boilerplate vs business logic. Examiner process poochta. 'Sab ChatGPT' red flag.
Verify: docs, run, edge case. Seekha: CORS, JWT exp, beat vs worker.
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: Jo number form/PDF mein hai wahi. Example file jo AI se start kiya, khud debug kiya.
Viva tipExaminer 'kya seekha / kaise check kiya' pe marks. 'Sab ChatGPT' red flag. Jo khud debug kiya woh story ready rakho.

Advice: Go through Overall of your code

See reviews LEVEL1_VIVA7 MAD1 Level 1

Aug 14, 2026

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1

HE asked for the 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
Then told me to write a route to connect the frontend and the backend

Times asked 2
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
Asked me where I have created a specific functionality,

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
Asked 1 2 thoery questions very easy

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.
5

Said to leave

Times asked 2

Official solution

SimpleViva wrap-up hai. Short thanks + confirm submission ZIP latest hai.
6

He was in a hurry just know your code and functionalities he is just checking if youuu know your own code

Times asked 2

Official solution

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

Advice: Chill proctor just know your code

See reviews Level1_130 MAD1 Level 1

Aug 14, 2026

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1

There was no project demo in my case. The examiner directly started asking questions from my codebase. He went through the project line by line and asked why I had written certain things, what they do, and whether I had actually implemented those features.

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

Some of the questions I remember are:

Times asked 2

Official solution

SimpleViva wrap-up hai. Short thanks + confirm submission ZIP latest hai.
3

Explain the configuration files you have used.

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

What is the purpose of the JWT secret key?

Times asked 1

Official solution

SimpleHMAC key. Private. Purpose: signature, not encrypt payload.
algo none attack libraries reject.
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_SECRET_KEY config.
5

Explain router.js.

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.
6
Create a router object and write the routing code.

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
Why are you using arrow functions in route components? Couldn't you import the components normally?

Times asked 1
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
```
8
Write a database query to fetch all treks belonging to a particular manager.

Times asked 2
Official solution

SimpleSQLAlchemy filter examiner ke hisaab se. Role/status/date. .all() list, .first() one.
ilike search. join roles. timedelta days. Empty = []. Password strip serialize.
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
```
User.query.filter_by(id=1).first()
User.query.filter(User.roles.any(Role.name=='admin')).all()
Booking.query.filter(Booking.created_at > datetime.utcnow() - timedelta(days=5)).all()
```
Project example: flask shell ya naya route. Dikhao result JSON.
9

My experience

Times asked 2

Official solution

SimpleViva wrap-up hai. Short thanks + confirm submission ZIP latest hai.
10

Some questions I answered well, some only partially, and a few I couldn't answer. I didn't try to bluff or make things up. Whenever I genuinely didn't know something, I told him honestly.

Times asked 2

Official solution

SimpleViva wrap-up hai. Short thanks + confirm submission ZIP latest hai.
11

At one point, he gave feedback saying that my answers were okay-ish, but I should understand my own code much better. He specifically said that using AI is not an excuse for not being able to explain or write the code yourself. If you've used AI to build something, you should still understand every part of it.

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
That honestly made me feel much better.

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.
13

Biggest lesson

Times asked 2

Official solution

SimpleViva wrap-up hai. Short thanks + confirm submission ZIP latest hai.
14
Know every single line of your own code.

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.
15
If you've imported a library:

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.
16

What problem does it solve?

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.
17

Could you have done it another way?

Times asked 2

Official solution

SimpleImprove ideas: caching, better validation, tests, pagination, email reminders, accessibility, mobile UI, logging.
Viva tip1-2 concrete features bolo jo time milne pe add karte — vague 'AI' mat.
18
If you've used a function:

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.
19
What does it return?

Times asked 2
Official solution

Simple.all() list of rows. .first() pehli row ya None. .get(id) PK se ek row / None.
Example
```
User.query.filter_by(role='admin').all()
User.query.filter_by(email=e).first()
```
20

Why is it needed?

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.
21

What happens if you remove it?

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.
22
If you've copied something from documentation or AI:

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.
23

Read it.

Times asked 2

Official solution

SimpleViva wrap-up hai. Short thanks + confirm submission ZIP latest hai.
24
Be able to write it again without looking.

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.
25
The examiner doesn't care whether the project works. He wants to know whether you understand what you've written.

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: My advice for everyone Go through your project line by line. Understand every import, configuration, and dependency. Be able to write important snippets (like router configuration or common database queries) without looking. Learn the concepts behind whatever you've used (JWT, Vue Router, computed, watch, Axios, Pinia, SQLAlchemy, etc.). If you haven't implemented a feature, be honest. Don't try to fake it. Revise common Vue concepts like props, emits, computed, watch, routing, conditional rendering, lifecycle hooks, and API calls. Revise backend concepts like JWT authentication, database relationships, SQLAlchemy queries, and why each package is used. Final takeaway The viva is less about whether your project runs and more about whether you truly understand your project. If you know your own code well, you'll do much better than someone who simply copied everything and hoped it wouldn't be asked. That's all from my side. I hope this helps. Best of luck to everyone appearing for the viva—you've got this!

See reviews Level2_134 MAD1 Level 2

Aug 14, 2026

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1

Which Vue version ae you using

Times asked 2

Official solution

Simple2 or 3 from package.json + 1 difference Composition/filters.
Which version are you using.
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 field.
Project example: package.json vue field.
2
Difference between vue CLI and Vue CDN and which one are you using.

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
```

<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
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.
4
What is Blueprint and where have you used it.

Times asked 2
Official solution

SimpleBlueprint se app ko modules mein todte ho — auth, admin, user alag files. Scale + clean structure.
Example
```
auth_bp = Blueprint('auth', __name__, url_prefix='/auth')

@auth_bp.route('/login')
def login(): ...

app.register_blueprint(auth_bp)
```
Viva tipViva: 'kyun blueprint?' → separation of concerns, badi app maintainable.
5

Where have you implemented caching.

Times asked 2

Official solution

SimpleGET lists/stats @cache.cached. Mutations pe delete. CACHE_TYPE Redis.
Why each route: public repeated reads. User-private careful.
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: File+line decorator. redis-cli get key optional.
6
Write a route to show the list of blacklisted companies. Also write frontend code for the same.

Times asked 2
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'
```

Advice: Know everything about your code. He can ask from anywhere.

See reviews level1_viva30 MAD1 Level 1

Aug 14, 2026

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1
Similar to the other responses here, seems like he follows a rigid format

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

- Asked me for a demo of the application

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.
3

- Did NOT let me open the code for some reason

Times asked 2

Official solution

SimpleViva wrap-up hai. Short thanks + confirm submission ZIP latest hai.
4

- Asked me to write Python code to fetch all students in notepad

Times asked 2

Official solution

SimpleViva wrap-up hai. Short thanks + confirm submission ZIP latest hai.
5
- Asked me where JWT is stored

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.
6
- Asked me what are lifecycle hooks in Vue

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.

Advice: Didn't feel very friendly, his mic quality was very bad. I had to ask him to repeat his questions multiple times. But his format is rigid, just study the responses given in the sheet and you'll do well.

See reviews APPDEV_LEVEL1_VIVA1 MAD1 Level 1

Aug 14, 2026

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1

- Show ID

Times asked 3

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

- Detailed codes

Times asked 2

Official solution

SimpleCode dikhao to pehle related file: models → route → template. Flow explain karte hue lines padho.
3

- questions, files, show api,

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
- write all the vue codes you know or used in notepad.

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
```

<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.
5

- Explain your codes, all modules from the start,

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.
6

- explain each functions that are being used.

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

Some personal questions,

Times asked 2

Official solution

SimpleViva wrap-up hai. Short thanks + confirm submission ZIP latest hai.
8
- like what I'm doing currently and

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.
```
9
- where I see myself in 5 years.

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

- grades in every other project

Times asked 2

Official solution

SimpleViva wrap-up hai. Short thanks + confirm submission ZIP latest hai.
11

Didn't let me show the application, or explain 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.

Advice: Be confident, Know your codes, know your file and know basic coding

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