Lazy IITians – Viva Prep

See reviews Level3_24 MAD1 Level 3

Aug 16, 2026

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1
Change background colour of student dashboard to red.

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.
2
Change block color to yellow.

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.
3
Change navbar position to bottom of page.

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: Prepare from viva sheet, know your code line to line, revise database concepts.

See reviews Level1_119 MAD1 Level 1

Aug 16, 2026

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1

Same as earlier vivas

Times asked 1

Official solution

SimpleViva wrap-up hai. Short thanks + confirm submission ZIP latest hai.
2
New question asked between impude and extends in Jinja

Times asked 1
Official solution

SimpleJinja2 Flask ka template engine — HTML ke andar {{ }} variables, {% %} logic.
Example
```
{% for lot in lots %}
  <li>{{ lot.name }} — {{ lot.spots }}</li>
{% else %}
  <p>No lots</p>
{% endfor %}
```
3
Asked me to sort

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
Also asked me to change to upper case

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: No normal guy

See reviews Level3_12 MAD1 Level 3

Aug 16, 2026

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1

Viva Lvl 1---- More or less like previous responses in this sheet except for these questions ----

Times asked 1

Official solution

SimpleViva wrap-up hai. Short thanks + confirm submission ZIP latest hai.
2
What is Flask WTF?

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.
3
What is CORS?

Times asked 8
Official solution

SimpleDifferent origin Vue vs Flask — browser CORS check. Server Allow-Origin.
Failed = frontend error even if curl works. Examiner curl vs browser.
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.
Example
```
from flask_cors import CORS
CORS(app, resources={r'/api/*': {'origins': 'http://localhost:8080'}})
```
Project example: Flask-CORS localhost:8080.
4

Viva Lvl 2 ---- nothing newer than his previous questions from this sheet ----

Times asked 1

Official solution

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

Advice: he was in rush but humble enough to ask the same old questions so you dont have to study everything...just follow what what he already asked as mentioned here by previous students and study the relevent stuff around it from this pdf to ensure full confidence around that topic: https://drive.google.com/file/d/1nsi9TrBXF03Akz5WrJQ8M53NhBLn-XfG/view?usp=sharing I prepared this way and it went so hell above my expectation XD

See reviews Level3_43 MAD1 Level 3

Aug 16, 2026

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1

Level-2:

Times asked 1

Official solution

SimpleViva wrap-up hai. Short thanks + confirm submission ZIP latest hai.
2

(3) Styling that you have used?

Times asked 1

Official solution

SimpleBootstrap CSS framework — grid, navbar, buttons jaldi. CDN ya downloaded files.
3

(5) Code changes for UI (I made the changes and it worked too but I think the proctor wasn't satisfied with it)

Times asked 1

Official solution

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

(6) What is Database schema and how have you implemented it in your code?

Times asked 1

Official solution

SimpleDatabase = organized data store. Example: SQLite file app.db with users, lots, bookings tables.
5
(9) How to move from one controller to another?

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
(10) Have you used session or token in you project?

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().
7
(13) How session is used in browser?

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().
8

At last I asked for the feedback?

Times asked 1

Official solution

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

Advice: Explain your application in detail. The proctor was chill and cool but asked a lot of questions. My viva went around 45-50 minutes. Have full confidence in yourself and remain calm.

See reviews Level3_43 MAD1 Level 3

Aug 16, 2026

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1

How subject, chapters, quizzes etc working

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.
2
Gave a leadership board scenario and asked how will you make database schema? Do you need to make separate table for it or not.

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.
3

In the end I asked for feedback

Times asked 1

Official solution

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

Advice: Overall he was good, calm, and chill (but asked lots of questions🥱). Total duration around 45 mins

See reviews Level3_12 MAD1 Level 3

Aug 16, 2026

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1

Everything that is present in this sheet for proctor id 3_12. Go through all the question.

Times asked 1

Official solution

SimpleViva wrap-up hai. Short thanks + confirm submission ZIP latest hai.
2

And for frontend and backend changes, he asked me

Times asked 1

Official solution

SimpleViva wrap-up hai. Short thanks + confirm submission ZIP latest hai.
3
to restrict the user to enter only 10 Chars for username

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
to store the subject name in database in capital format

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
```
5
to change the colour when we hover cursor on register/login 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: Proctor is calm, suggests changes in between viva for future purposes, if asked for review or remarks, he will guide you and suggest desirable changes. He'll interrupt you in between,while answering some ques because he gets the answer because of the way of you answering, some expected points you mentioned. Whatever he says, nod in yes like "Yes sir, you are right, will try to improve in next one ". And that's all. All the very best for Viva 2.

See reviews Level3_24 MAD1 Level 3

Aug 16, 2026

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1

Then i downloaded file infornt of so no need of checksum

Times asked 1

Official solution

SimpleExaminer wohi ZIP chahta hai jo tumne submit kiya, local extra magic nahi.
Portal download → extract → redis, venv, pip, npm, flask, worker, beat.
Checksum maange to hash. Uncommitted files mat dikhana.
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) ZIP
2) Extract
3) Redis + venv + pip
4) npm/vite
5) flask + celery worker + beat
Project example: Submitted zip run. README commands copy.
Viva tipChecksum maange to hash match karke dikhao. Extra uncommitted files mat dikhana.
2

He said me give detailed and elaborative demo of you app

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

Then i showed all the functionalities of my application

Times asked 1

Official solution

SimpleDemo script pehle se practice karo, 5-7 minute, saari roles.
Suggested flow
1) Register/login user 2) Admin login — CRUD 3) Approval/blacklist 4) Booking/apply 5) Search 6) Validation edge (slots 0, duplicate) 7) Logout
Bolte-bolte dikhao: 'Yahan overbooking rokta hoon'. Code tab kholna jab poochhein.
Crash ho to debug calmly: terminal error, typo, DB path.
Mandatory features skip mat karna — examiner list tick karta hai.
4
The procter was very nice he told me that where i could make my app better

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.
5
He told me that i was very confident about my code because i explain everything with example and all the edge cases

Times asked 1
Official solution

SimpleEdge cases: duplicate booking, full capacity, wrong role URL, empty search, invalid id.
Example
```
if Spot.query.get_or_404(spot_id).status != 'available':
    flash('Already taken')
    return redirect(...)
```

Advice: The procter was very chill and good very calm and polite Explain your code in very deep way explain each and every line so that he would not have any questions left with him You should know your code very well all the routes , models table frontend and backend Be confident for your code and just review this sheet for questions and topics Best of luck ! : )

See reviews Level3_12 MAD1 Level 3

Aug 16, 2026

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1
And Add. Delete, edit subjects

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.
2

Attempt a quiz

Times asked 1

Official solution

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

Show summary and explain

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.
4

Types of CSS styling

Times asked 1

Official solution

SimpleCSS 3 tarikon se lagti hai, priority Inline > Internal > External (same specificity pe).
Inline: style='color:red' element pe. Highest priority, lekin reuse nahi. Debugging mushkil.
Internal: <style> tag HTML head mein. Us page tak limited.
External: style.css file. Large project ke liye best — ek jagah change, saari pages update.
Example same button pe teeno:
/* external */ .btn { color: blue; }
/* internal */ .btn { color: green; }
 <button class='btn' style='color:red'> → red jeetega
ID (#box) class (.btn) se strong, class element (button) se strong.
!important sabko override karta hai — avoid karo.
Large project: external CSS preferred.
5
And what keywords we use to define CSS Styling

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

How we import to external CSS to html

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.
7
And what symbols we use to represent id and class in css

Times asked 1
Official solution

Simple:class object/array/string dynamic CSS.
Purpose dynamic class. Error red.
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
```
<div :class="{ 'text-danger': error, 'fw-bold': important }">Msg</div>
```
Project example: :class="{ 'text-danger': error }"
8

How we connect the database to the servee

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.
9

And some more, but all the questions are mentioned in this sheet from his proctor id!

Times asked 1

Official solution

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

Advice: It was like a rapid fire round, he repeats the same questions, just go through the questions asked by Level3_12 proctor alone. That's more than enough. You can survive. He rushes, expects to make things quickly. But he was cool, explained how could it have been done when we went wrong.

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