Lazy IITians – Viva Prep

Aug 16, 2026

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1
• Write a query for retriving students applications

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
• Write a route and home.html which take a parameter name from a form and show it on a browser

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
• why <name> is used in forms

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
```
4
• Realtionships between modals like one to one and one to many

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
• Retreive student with help of primary key

Times asked 1
Official solution

SimplePrimary key row ka unique identity — usually id Integer autoincrement.
Example
```
id = db.Column(db.Integer, primary_key=True)
```

Advice: She is very calm and supportive. If you are not able to answer then she will provide hints and help you. Just go through her previous questions and 90% questions will be the same

See reviews APPDEV_LEVEL1_VIVA1 MAD1 Level 1

Aug 16, 2026

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1
sessions vs tokens

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().
2
autherorization and authentication

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)
```
3
write basic form and button

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
```
4

query to fetch all blacklisted company

Times asked 1

Official solution

SimpleBlacklist/block: user.status='blocked' check login/booking pe. Temporary flag vs hard delete permanent.
5
flask login route and hello route then check functionality

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'
```

Advice: overall good proctor, don't panic. Do fast whatever he told either it is coding or theory question....he already mentioned in the beginning of viva don't explain theory question just tell me what it is bs.

See reviews Level1_92 MAD1 Level 1

Aug 16, 2026

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1
checked github collaborator

Times asked 1
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.

See reviews Level1_93 MAD1 Level 1

Aug 16, 2026

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1
1.url_for,session in Flask since I used them

Times asked 1
Official solution

Simpleurl_for endpoint name se URL banata hai — hardcode path mat likho.
Example
```
url_for('auth.login')
url_for('static', filename='css/style.css')
```
2
Code changes

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'))
```

See reviews Level1_93 MAD1 Level 1

Aug 16, 2026

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1

downloaded the proj from portal and opened in vs code

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
the first line of the code in app.py you have imported lot of things, what do u mean by request. (they can ask about other imported items as well so learn all)

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
what is the code of internal server error?? (answer 500)

Times asked 1
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
```
4
css styling priority? (answer: inline, internal(style tag), external(css file)

Times asked 1
Official solution

SimpleCSS look. Selectors element .class #id. Box model flex grid.
Inline vs internal vs external. Specificity inline high.
Look: Bootstrap utility classes (margin m-3, flex, grid) ya khud CSS. Responsive = media query / Bootstrap breakpoints se mobile.
Vue scoped style leak nahi. :class binding. Examiner colour/button live change maange to DevTools nahi, source class dikhao.
CSS ≠ Bootstrap. Bootstrap CSS+JS framework. Inline style last resort.
Example
```
.btn { background: green; }
.mt-2 { margin-top: .5rem; }  /* bootstrap */
.my-3 { margin-top+bottom }
```
Project example: style section SFC scoped + bootstrap.
Viva tipResponsive: Bootstrap grid / media queries. Bina CSS possible nahi really — browser default ugly. Flexbox 1D, Grid 2D.
5
open notepad and create a list (simply l= [1,2,3,4,5] ) and write the api route to display this list....first ask her do we need to also write the imports she'll say no and then ask get and post request also or just simple so shell say simple answer: @app.route('/display') def show(): return render_template('num.html" , 'l'); and then when we write the html file so there we will pass the list as : {{l}

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'
```
6
after logging in as admin she asked, can admin search the particular student and company? my app didnt had that feature so i said no i forgot to do that

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()
```
7

then she asked to login as a company and create a drive

Times asked 1

Official solution

SimpleCRUD = Create Read Update Delete. Admin pe ek resource ke 4 ops dikhao.
8

register as a student and apply to the drive. can a student apply to the same drive twice? (when a student has already applied so it should show a prompt as in already applied or something relative)

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.
9

thats all. she was reallyy reallyyy sweet and helpedd where i got stuck. dont be nervous and be confident on what you know

Times asked 1

Official solution

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

Advice: she was reallyy reallyyy sweet and helpedd where i got stuck. dont be nervous and be confident on what you know. level 1 viva usually gets over in not more than 20min. mine took 15min and it was over. if u r preparing at the end moment and u know literally nothing then just go through all the questions present in this sheet of that particular examiner and you will be good to go. (tried and tested method)

See reviews Level1_130 MAD1 Level 1

Aug 16, 2026

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1

Two options : download from portal or do the checksum

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
Brief Overview of the project (what files are there, how they are connected to each other)

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
Briefly explain all the models

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)
```
4

Explain the logic of creating a drive (Show through the code, both frontend and backend)

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

Add a field Age(dropdown) with two option Less than 30 and Greater than 30, in the Create Drive page. Then retrieve the value and print it on the terminal.

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: One of the best proctor, my viva was around 30 min. Just know the logic of what you've used in the project. All The Best 👍

See reviews Level3_24 MAD1 Level 3

Aug 16, 2026

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1

starts with demo(take as much time as you can in demonstrating 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
ask me to put navbar in the middle of the 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.
3

in how many types you can store data on client side

Times asked 1

Official solution

SimpleClient storage: cookies, localStorage, sessionStorage, IndexedDB. Tokens often localStorage; sessions often cookie.

Advice: with ctrl+f find the proctor you been assigned see all the question he/she asked they mainly ask the same questions chill proctor. just take as much time as you can on demo or he will tell you to explain all the code part

See reviews Level1_139 MAD1 Level 1

Aug 16, 2026

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1

- Explain what you've done

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
- Show where you've used 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
- What do you think is the advantage for using Jinja

Times asked 1
Official solution

SimpleJinja for loop list render karta hai. loop.index, else branch empty list pe.
Example
```
{% for u in users %}
  <tr><td>{{ loop.index }}</td><td>{{ u.email }}</td></tr>
{% endfor %}
```
4

- Show the app.py slowly, Explain the database.

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

- I used unique constraint with table args, so she asked what it is and asked to explain it.

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
- What is template inheritance? Show where you've done it.

Times asked 1
Official solution

SimpleBase template pe navbar/footer, child pages {% extends %} + {% block %} se content bharte hain. DRY.
Example
```
{# base.html #}
{% block content %}{% endblock %}

{# home.html #}
{% extends 'base.html' %}
{% block content %}
  <h1>Home</h1>
{% endblock %}
```
7

- Show the routes code and Explain the login route and register 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.
8

- Show the login.html and Explain how does it shift from one route to another, what happens in the route, ans it without seeing the route code, just explain it by seeing the login.html page itself.

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
- How does the code go to the database when you enter the details in the form?

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
```
10

- (I have more sections in the admin dashboard so she asked me to enter details into each section)

Times asked 1

Official solution

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

- How does blacklist button work and what happens to the drive created by those blacklisted companies?

Times asked 1

Official solution

SimpleBlacklist/block: user.status='blocked' check login/booking pe. Temporary flag vs hard delete permanent.
12

- Add a button near the drive name saying that the company is blacklisted in admin dashboard (I had a button near the company name which says that the company is blacklisted or not so she asked me to add a similar button in the ongoing drives section also)

Times asked 1

Official solution

SimpleBlacklist/block: user.status='blocked' check login/booking pe. Temporary flag vs hard delete permanent.

Advice: She helped me whenever I got stuck. She did even not see my whole app itself. She just saw the admin dashboard and asked more questions from the code only.

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