Viva prep · Real questions · Student experiences Enroll in Bootcamp

Study workspace

Viva Prep

Prepare in structure for the Project Mentorship.

18841 Questions
267 Proctors

Lazy IITians

Who are we?

A student-built prep community for IITM BS — real viva questions, shared experiences, and structured practice so you walk into mentorship confident.

Fill the form and join us

Enroll in Bootcamp

Find questions

Search by question text across the whole library, then narrow with subject, level, and proctor.

Share your experience Add your viva experience here

Question sets

  1. 1
    Tell about your project Structure
    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. 2
    Show me your models and explain
    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)
  3. 3
    explain the login and how it works in your code
    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 about adding the lots in your code Coding Qs:
    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
    given [<Spot 1>,<Spot 2>,<Spot 3>] and a flag isOccupied, write in Jinja how to populate the spots in order
    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 %}
  6. 6
    given URL http://127.0.0.1:5000?name=xyz&course=appdev, write a flask endpoint that returns JSON data Theory Qs:
    Times asked 1
    Official solution

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

  7. 7
    If i remove method="post" in the HTML form, will it have any impact?
    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. 8
    If you remove url_for in redirect, what would you change to get same results?
    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'))
  9. 9
    what is name and id in 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.

Advice: proctor was Adarsh Madre sir himself, asked some basic questions, that test our understanding of our Code, ability to Code and basic theory Qs.
  1. 1
    -Download project from portal no 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. 2
    -Directly asked to create a template and a route to create a dropdown having options as lot names
    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
    -Asked to show each file
    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. 4
    -As i used wrap function from functools asked where it is implemented in code and purpose of the function
    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'
  5. 5
    -Template inheritance, cellpadding and cellspacing
    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 %}
Advice: no need to worry just be thorough with the code you have written
  1. 1
    sir came 10 minutes late
    Times asked 1
    Official solution

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

  2. 2
    asked me to show 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.

  3. 3
    simple ui changing of register button from login page bottom center to top right
    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. 4
    standard questions that he has asked previously mentioned in the viva responses sheet
    Times asked 1
    Official solution

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

  5. 5
    asked some questions on Blockchain technology too
    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: feedback need to work on OOPS and API theoretical knowledge
See reviews 106 MAD1 Level 1
  1. 1
    Open the ZIP File through the submission
    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. 2
    Demonstrate your project
    Times asked 3
    Official solution

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

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

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

  3. 3
    Show the admin and user dashboard
    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. 4
    How the booking and releasing of parking lot works
    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
    How did you get the summary chart
    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
    Show the GitHub
    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.

  7. 7
    What's the architecture of your project
    Times asked 1
    Official solution

    SimpleMAD1 typical: Browser → Flask routes → validate/auth → SQLAlchemy → SQLite → Jinja response.

    Suggested flowRequest → Route → Auth check → DB → render_template / redirect

  8. 8
    Where have you used Jinja 2 in your project
    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 %}
Advice: Chillest Examiner you could ever see. Asked very basic questions. Only 15 mins viva.
  1. 1
    Why used blueprints
    Times asked 1
    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.

  2. 2
    Make a html file and take user credentials
    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. 3
    Status code , assertion
    Times asked 1
    Official solution

    SimpleStatus code server ka result: 200 OK, 302 redirect, 400 bad input, 401/403 auth, 404 not found, 500 server error.

  4. 4
    app.py - login manager
    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
    app.config['SQLALCHEMY_TRACK_MODIFICATIONS'] = False , if we make this true
    Times asked 1
    Official solution

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

    Example

    user = User(email='a@b.com')
    db.session.add(user)
    db.session.commit()
    users = User.query.filter_by(role='admin').all()
  6. 6
    make a route to edit parking lot and spots
    Times asked 1
    Official solution

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

    Viva tip1 minute elevator pitch ready rakho, phir demo.

  7. 7
    There were more questions related to the backend
    Times asked 1
    Official solution

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

  8. 8
    Status code 305 - Do all the status codes
    Times asked 1
    Official solution

    SimpleStatus code server ka result: 200 OK, 302 redirect, 400 bad input, 401/403 auth, 404 not found, 500 server error.

Advice: He is nice , patient and gives time to try and explain. He will also let you ask and correct you where u get wrong. Don't rely on questions here , U need to have a proper understanding of the logics u put behind the project , For me i wasnt able to answer a lot of questions and he simply said me practice and to actually make the project next time for MAD2. Overall he only pointed me where i am weak at and thats good!
  1. 1
    download your project from the portal and explain
    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
    elaborate the use of each and every library used by you
    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
    demonstrate the core functionalities
    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 seemed very rude by his tone right from the beginning. After I initially explained my entire project in about 20 mins, I asked him if there was anything I missed out and he didn't even respond. So, I continued with the demonstration. After about 5 minutes, he asked to explain the models.py part (which I had already explained in detail). Overall, he didn't reciprocate much during the entire viva which made me feel like he was not even present or dissatisfied by my answers. At the end, surprisingly, he said that I explained very well and he left the meeting saying 'Thank you'. The entire viva lasted for 30 mins.
  1. 1
    -He asked the same questions as asked to the guy whose response is in 308 row number
    Times asked 1
    Official solution

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

  2. 2
    -even the code change was the same, so just learn the adding age thing to ur user code and displaying it in the manage users page(in admin)
    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: -He is chill, just know ur code, and just answer what u know -At the end he will ask if u have any questions -I asked about the feedback of my response
  1. 1
    1)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.

  2. 2
    Explain Search Funcnality
    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()
  3. 3
    diff btw like and ilke Operator Then asked anything you would want to ask i asked about feedback and Improving Some funcnalites in my application
    Times asked 1
    Official solution

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

Advice: Good chill Interview easily you can nail interview rember how u have implremented Search fn and database some basic concepts and params used in you code liken ilke lazy cascade_all backref if used
Maintaine By Lazy IITians Team + IITM BS students Regualr for More data you have