Search – Lazy IITians Viva Prep

Aug 16, 2026

Copy set link

1

Level 2 (LEVEL3_47)

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
Explain all models in models.py.

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

Explain all database constraints.

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
Add a new attribute (e.g., emergency phone) to the entire system.(I explained that my current project doesn't use Flask-Migrate, so I would recreate the SQLite database after updating the model. The examiner accepted this approach.)

Times asked 1
Official solution

SimpleSQLite file-based DB — setup easy, MAD1 ke liye perfect. Production heavy traffic pe Postgres better.
Example
```
SQLALCHEMY_DATABASE_URI = 'sqlite:///app.db'
```
5
Difference between Cell Padding and Cell Spacing.

Times asked 3
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

Explain CSRF with a real-life example.

Times asked 1

Official solution

SimpleCSRF: attacker tumhari logged-in browser se unwanted POST. CSRF token form mein proof hai request genuine hai.
Viva tipFlask-WTF CSRF protect karta hai. Token bina POST reject.
7
What is Secret Key?

Times asked 1
Official solution

SimpleSECRET_KEY Flask ka secret jisse session cookies sign/encrypt hoti hain.
```
app.config['SECRET_KEY'] = os.getenv('SECRET_KEY', 'dev-key')
```
Iske bina session/flash unreliable ya insecure. Key leak = attacker session forge kar sakta hai.
Hardcode mat karo production mein — .env / environment variable. Flash messages bhi session use karti hain, isliye SECRET_KEY se related hain.
Hataane pe session kaam nahi / warning. Change karne pe purane sessions invalid.
8
Explain how the Jinja template engine works.

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 %}
 No lots
{% endfor %}
```
9

Explain {{ }} ( Expression Delimiters ) and {% %} ( Statement Delimiters).

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.
10
Explain Template Inheritance.

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: Friendly examiner. Be ready to explain your project and make small code changes on the spot (e.g., adding a field or changing Bootstrap styles). Understanding your code is more important than memorizing definitions. And duration: ~30-35 minutes.

See reviews Level3_47 MAD1 Level 3

Aug 16, 2026

Copy set link

1

Viva ends in 28 min

Times asked 1

Official solution

SimpleViva wrap-up hai. Short thanks + confirm submission ZIP latest hai.
2
First show me the db diagram and tell me about the models.py in your app and all constraints

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

Explain the entire controller how it works from one to different routes

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

In user registration page add an extra attribute "phone" to the entire frontend and backend system. (Without deleting existing data and all the existing row contains Null values is phone attributes)

Times asked 1

Official solution

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

Advice: Viva ends in 28 min The proctor was very nice. My experience was: "You have to prepare for explaining every line of your code."

See reviews Level3_45 MAD1 Level 3

Aug 16, 2026

Copy set link

1

5 Ask to do changes in the user dashboard in the username she asked me to do username as a clickable link

Times asked 1

Official solution

SimpleViva wrap-up hai. Short thanks + confirm submission ZIP latest hai.
2
7 What is overflow in the css

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
8 Write a piece of code using jinja2 and show the list= ["a", "b", "c"] which shows the output 1a, 2b, 3c

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 %}
 No lots
{% endfor %}
```
4

9 Create a route which takes number from the url as an input and returns square of that number

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

10 Write a python sql query where you show all the bookings for the logged in user

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.
6

12 What is render template

Times asked 1

Official solution

SimpleViva wrap-up hai. Short thanks + confirm submission ZIP latest hai.
7

14 Explain the login and logout 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

15 Explain book trek route

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.
9
16 What is the use of url_for()

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')
```
10
18 Difference between backref and back-populates

Times asked 1
Official solution

Simplebackref reverse attribute auto banata hai. back_populates dono sides explicitly naam dete ho — clearer.
Example
```
# backref
spots = db.relationship('Spot', backref='lot')
# spot.lot available

# back_populates
spots = db.relationship('Spot', back_populates='lot')
# Spot.lot = db.relationship('Lot', back_populates='spots')
```

Advice: She is very calm and helping proctor she gave the time to think and to write the code mostly she asked the questions which is present in the sheet. Stay calm and confident and know the every line of your code.

See reviews Level1_2 MAD1 Level 1

Aug 16, 2026

Copy set link

1
My Level 1 Viva was on 24th July.🫠 (Too late to post I know, I was too packed up in my schedule lol,just got free so thought to share atleast ) Proctor ID : level1_2 Slot: 9:30 to 10 PM Look the proctor was very chill, no need to get nervous at all. He is very calm and asks easy and basic questions, know your project well both the code and the front end part(especially) he asks mainly from here only what feature you have implemented and how is it working, what is your logic in this project, just tell yours what you have implemented in your project. Here are some questions which I remember :

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')
```
2
Show your Github repo and collaborators

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.
3

Screenshare and asked to run my project

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.
4

Asked some tasks to do like register as new trekker , login and show the trekkers dashboard, book treks, cancel booking, show trekking history

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.
5

Then he said to login as admin and show me admin dashboard, the tables there , do you have implemented search filter there can admin search for staff, trekker by using the id or their registered name on the website. I showed him that admin even have filter to show only staff lists or trekkers lists, he can also see all the bookings made by trekkers and if they cancel it , then it is not shown in admin dashboard, it will remove immediately from there

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.
6

Then in admin dashboard only he told me to create new treks, edit treks, edit the date, he asked me one imp thing if the date is passed then will admin be able to create trek on past date? I told him "yes" and then one logic will work there, cur date will be checked in the backend and if the date is already passed then the status in the database and the admin dashboard table will change to "completed " and if it is completed then it won't show in available treks to book option for trekkers.

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

He asked me one more imp thing that if there are 1000 treks lets say then do you have some thing kind of populates pages i dont remember the term exactly but he meants that if the list is big then will it shift to another page itself or it will be shown in same page only it wil get lined up below..i said yes sir, that is what will happen, it will just get added one below after below in single page only, admin need to scroll below to see al those 1000 treks, he will found. Then he said okay, perfect

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

Then in the start of admin dashboard I had a section of staff approval, he told me to register as staff and login

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

I showed him that staff to have option to self register but they can't login to staff dashboards until and unless admin verifies and approved their data

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.
10

He told me to show , I showed the red flash was coming "Admin approval pending"

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.
11

Then he told me to approve staff if and then login and show me the staff 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.
12

Then he again told me to move on to admin dashboard and assign one trek to this newly created staff

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.
13

Show in the staff dashboard how is it showing there

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.
14

Then told me to show what staff can do he can edit trek status and change the slots he asked me what happens when slots become 0 I said , then the status will automatically change to "closed or completed " and it wont show in available treks to book section in trekkers dashboard

Times asked 1

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.
15
He told me to go in Edit Profile section and change the name , keep the password same, and try login

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.
16
Then he asked is that name showing above in navbar in user dashboard is it clickable? I said no

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.
17
He said to make the text clickable and on clicking it the edit profile page gets opened

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.
18

I did it,altho i was unsure if I will be able to do ,I said I will try sir he said ok do it, then i did

Times asked 1

Official solution

SimpleViva wrap-up hai. Short thanks + confirm submission ZIP latest hai.
19

Then he said blacklist some user or staff and try login I said he wont be able to the red flash will come then he said what will happen then, i said his id will be removed from the database and he again have to create id and relogin after admin approval (in case of staff)

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.
20

Then he said can it be undone i said yes i had a restore button just beside blacklist button

Times asked 1

Official solution

SimpleBlacklist/block: user.status='blocked' check login/booking pe. Temporary flag vs hard delete permanent.
21

Finally he moved to theory questions

Times asked 1

Official solution

SimpleTheory = concepts: ORM, MVC, auth vs authz, Jinja inheritance, sessions. 1-line def + project example.
22
He asked me what is ORM and what are its adv I explained ORM and told some adv blindly which I mugged up but i understood one adv deeply and how it works behind I told him that I can recall one adv nicely rn he told me to explain it with an example, i explained , he listened paitently, i explained using my models.py file, i showed him in code how it will work if it was RAW SQL( it was the sql injection part, which hacker can try, if we won't have used ORM)

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
```
23
He asked me have u used any ORM here , i said yes its flask sqlalchemy he told me to explain it

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()
```
24

Next, he said open models.py file and explain the whole thing. I did

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.
25
Then at the end , he asked one very easy qn to change the port no. To 5413 and show the project in diff port how will u do it, i said umm umm..may be in terminal sir🥹 he laughed ok can u open app.py file and check last line there in app.run you can add one parameter then i recalled o yes sir i recall then I did it, this was the only qn where I got stuck and may be couldnt ans 100%

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.
26

I did , and he said, okay that is all from my side

Times asked 1

Official solution

SimpleViva wrap-up hai. Short thanks + confirm submission ZIP latest hai.
27
All the best for your level 2 viva, he told me what qns to prepare what will be asked, MVC, auth vs authorizn, jinja loop, note pad thing, temple inheritance, show MVC in code , some basic coding qn, change color of button add button i was like sir this I thought u will ask me I prepared this for level 1😅 i said okay sir thank you

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 %}
```
28

He said okay all the best Bye Also in the sheet, u won't find this id properly in one response it was mam, it is a sir actually so I am pasting the response too from where I prepared one of the stu shared me who had same proctor on same day just diff slot *_PREVIOUS RESPONSES_* "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.
29
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 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'))
```
30
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 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.
31
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 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
```
32

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" "Asked me to download the project from the portal. Asked why I was using a virtual environment (venv). Asked me to give a demo of the project. Asked what cascade=""all, delete-orphan"" means in models.py. Asked me to change the position of the Edit Profile button. Asked me to replace Edit Profile text on the button with the name of the currently logged-in student. Asked what if __name__ == ""__main__"": means in app.py."

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

Advice: Overall very chill, sweet, responsive proctor, he doesn't ask any tough qns ,just the basic coding and theory only he asks only from your project , nothing from outside prepare from sheet everything was from there only he repeats most of the qns.

See reviews Level3_45 MAD1 Level 3

Aug 16, 2026

Copy set link

1

Show in route where u have implemented trek crud operations

Times asked 1

Official solution

SimpleCRUD = Create Read Update Delete. Admin pe ek resource ke 4 ops dikhao.
2

How have you prevented duplicate email creation

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.
3
Explain all the classes u have created and their relationships

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')
```
4

She was asking to explain particular lines of code in the project

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
What is z-index

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 to center a div using css

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

What is the difference between div and span tag

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
Asked to write a route to create a new trek

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'
```
9
Jinja code to display all the treks whose trek status is open

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 %}
 No lots
{% endfor %}
```
10
A single line of jinja code to display count of no of treks present

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 %}
 No lots
{% endfor %}
```
11
Explain difference between commit and rollback

Times asked 1
Official solution

Simplecommit changes save. rollback fail pe undo. Transaction consistency ke liye.
Example
```
try:
    db.session.add(obj)
    db.session.commit()
except Exception:
    db.session.rollback()
    raise
```
12

Asked demo of the 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.
13
Make changes in your code so that username should became a link but it should not redirect anywhere

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'))
```
14

I might have forgot some qs but mostly she is asking the same quesstions from sheet

Times asked 1

Official solution

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

Advice: Keep ur theory strong she will ask a lot of theory questions and know your code well

See reviews Level3_45 MAD1 Level 3

Aug 16, 2026

Copy set link

1

Show id. Checksum or Download. I chose downloading from the 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

Questions asked were mostly theoretical.

Times asked 1

Official solution

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

Explain MVC. How is it implemented in your app?

Times asked 1

Official solution

SimpleMVC: Model=data (SQLAlchemy), View=Jinja HTML, Controller=Flask routes/business logic.
Flask loosely MVC follow karta hai — routes controllers, templates views, models.py models.
4
Explain the models in your code. Explain the relationships. (Backref and Back_populates).

Times asked 1
Official solution

Simplebackref reverse attribute auto banata hai. back_populates dono sides explicitly naam dete ho — clearer.
Example
```
# backref
spots = db.relationship('Spot', backref='lot')
# spot.lot available

# back_populates
spots = db.relationship('Spot', back_populates='lot')
# Spot.lot = db.relationship('Lot', back_populates='spots')
```
5
Explain jinja. Write a code in jinja to show treks which have prices < 3000.

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 %}
 No lots
{% endfor %}
```
6

Difference between div and span tags in html.

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
7

How are u tracking errors in the app? (debug = True). Why have u set debug=True?

Times asked 1

Official solution

SimpleDebug: terminal traceback padho, print/logging, Flask debug, browser Network/Console, reproduce minimum steps.
8
I had radio buttons for roles . Asked to make similar buttons for gender.

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.
9

How have u prevented booking for already booked treks.

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.
10
If end_date before start_date causes an error in your application.

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.
11
Write the python program to fetch all the bookings for the logged in user.

Times asked 1
Official solution

SimpleNaya Flask route: URL, method, auth if needed, query, jsonify. Postman pehle.
Examiner number/filter change easy rakhna. CORS. Frontend tabhi jab bole.
Status codes sahi. Password JSON mein nahi.
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
```
@app.route('/api/sum', methods=['POST'])
def sum_num():
    d = request.get_json()
    return jsonify(result=d['a'] + d['b'])
```
Project example: resources.py new Resource. Test Thunder. Optional Vue fetch.
12
Can flask return a boolean value?

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.
13
Can flask handle multiple users?

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.
14
Something about Responsive Layouts.

Times asked 1
Official solution

SimpleResponsive = alag screen pe layout adjust. Bootstrap grid / media queries / flex.
Example
```
@media (max-width: 768px) {
  .sidebar { display: none; }
}
```
15
Make the booking name in your html page a hyperlink but it doesnt redirect to anything.

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'))
```
16
What if no url_for is passed to redirect?

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'))
```
17

Demo. Asked to create a trek.

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: Prepare from the sheet questions. Make sure to know atleast something about all that is in your code. Viva was over in like 40 mins. Stay calm , most of the questions will be from the sheet and even the coding questions wont be too hard.(I was able to do the coding without her help)

See reviews Level3_45 MAD1 Level 3

Aug 16, 2026

Copy set link

1

Download project / Generate 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

How do you prevent duplicate email registration using database

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.
3

Why have you create a separate bookings table

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
What change should you make if you remove url_for()

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')
```
5
What is the difference between filter() and filter_by()

Times asked 1
Official solution

Simplefilter_by kwargs equality. filter expressions >, ilike, joins.
Difference filter and filter_by.
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
```
User.query.filter_by(email='a@b.com').first()
User.query.filter(User.age > 30, User.name.ilike('%ram%')).all()
```
Project example: email filter_by. age>30 filter.
6

How can you secure user password

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

What are CRUD operations

Times asked 1

Official solution

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

Show the route where the admin performs all CRUD operations on the trek and explain the route

Times asked 1

Official solution

SimpleCRUD = Create Read Update Delete. Admin pe ek resource ke 4 ops dikhao.
9

Show and explain the route for user booking and cancelling the trek

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.
10

Show and explain the template of booking history

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.
11
Explain all you know about Jinja2 templating

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 %}
 No lots
{% endfor %}
```
12

Write the code to add a new trek

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.
13
Write the Jinja2 to highlight all treks with price > 3000

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 %}
 No lots
{% endfor %}
```
14

Show 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.
15
What is the use of virtual environment

Times asked 1
Official solution

SimpleVirtualenv isolated Python env — project deps system Python ko nahi bigaadte.
Example
```
python -m venv .venv
source .venv/bin/activate
pip install -r requirements.txt
```
16
What all objects can flask return? Can it return JSON as well?

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.
17
Create a trek and show all validations done

Times asked 1
Official solution

SimpleValidation = input rules: required, email format, length, unique. Frontend UX, backend security — dono.
Example
```
if not email or '@' not in email:
    flash('Invalid email')
    return redirect(request.url)
if User.query.filter_by(email=email).first():
    flash('Email taken')
```
18
Explain the portion of code where you are validating and not accepting past dates

Times asked 1
Official solution

SimpleValidation = input rules: required, email format, length, unique. Frontend UX, backend security — dono.
Example
```
if not email or '@' not in email:
    flash('Invalid email')
    return redirect(request.url)
if User.query.filter_by(email=email).first():
    flash('Email taken')
```
19
Go to edit trek and add the validation for trek to not accept a description of more than 25 characters

Times asked 1
Official solution

SimpleValidation = input rules: required, email format, length, unique. Frontend UX, backend security — dono.
Example
```
if not email or '@' not in email:
    flash('Invalid email')
    return redirect(request.url)
if User.query.filter_by(email=email).first():
    flash('Email taken')
```
20
Login as user and bring the user dashboard heading to the centre of the page

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.
21

Login as staff and update their trek details

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.
22
Make the trek name as a clickable link, but it should not redirect to another page

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'))
```
23
Make a simple flask server that accepts the name from the user and displays "Hello" with the name

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: She's good, but she sounds a little firm and strict. She shoots questions like a rapid fire, so please be prepared with everything on your finger tips. If you do not answer in a few moments, she just moves on. If you learn everything from the sheet and know every line of your code well, you are good to go!

See reviews Level2_134 MAD1 Level 2

Aug 16, 2026

Copy set link

1

Checked for major functionality by himself do this do that while cross questioning where have you implemented this in code

Times asked 1

Official solution

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

Coding Q's Make an endpoint to list down all blacklisted companies in the admin dashboard

Times asked 1

Official solution

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

Advice: Very humble, Good proctor. You're lucky if you got him. He asks good questions. Do proper revision and go through all previously asked questions.

See reviews Level3_45 MAD1 Level 3

Aug 16, 2026

Copy set link

1

- Show your ID card

Times asked 1

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

- Either download the project from portal or do the checksum (I chose to 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
3
- Run the project

Times asked 1
Official solution

Simplevenv activate → dependencies → DB create/migrate → flask run. Browser pe localhost dikhao.
Example
```
python -m venv .venv
source .venv/bin/activate
pip install -r requirements.txt
flask run
```
4

- Show me the route for login and logout.

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

- What is CRUD operation?

Times asked 1

Official solution

SimpleCRUD = Create Read Update Delete. Admin pe ek resource ke 4 ops dikhao.
6

- Can only admin do CRUD operation related to trek?

Times asked 1

Official solution

SimpleCRUD = Create Read Update Delete. Admin pe ek resource ke 4 ops dikhao.
7
- Difference between GET and POST

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')
```
8

- Show me the route where admin can view, create, edit and update trek.

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.
9

- Show me the demonstration of 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.
10

- Create a trek, and create a user and make a booking for this new trek by this new user.

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.
11

- I had separate page for registering trekkers and staffs. She asked to add a dropdown list to select gender on trekker registration page. (She asked if I don't to add dropdown and want to add checkbox in its place. I said that I can add dropdown.)

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.
12
- In the table of active bookings in trekker page, she asked me to make the trek name as clickable, but it should not redirect anywhere.

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'))
```
13

- She aksed me to open the template of admin dashboard, and show where I have used the jina templating.

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.
14
- What does render_template() do?

Times asked 1
Official solution

Simplerender_template Jinja HTML file ko data deke final HTML banata hai.
Example
```
return render_template('dashboard.html', user=user, lots=lots)
```
15
- What is action attribute in a 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
```
16
- Write a piece of code in jinja, where the status of trek is open, it should display the name of the trek.

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 %}
 No lots
{% endfor %}
```
17
- Write a sqlalchemy query to find all the trek whose price is less than 3000.

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()
```
18
- Write a sqlalchemy query to count the total number of bookings.

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()
```
19

- Write a code to create a trek with name, location and price fields.

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.
20
- What is one to many, and many to many relationship. Explain me using the example of trekking management system.

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')
```

Advice: The meet lasted for around 37 mins. She said that overall the viva went good. I need to work on some part. The proctor was calm and supportive. She gave some time to speak, wherever I was not able to speak. Advice : Be calm. Prepare the questions that this proctor has asked before. Keep your theory good.

See reviews Level1_18 MAD1 Level 1

Aug 16, 2026

Copy set link

1
Open the repository and explain collaboration.

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.
2

Explain the application that I built.

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.
3
Write a Flask route to blacklist a user.

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'
```
4
Write a Jinja loop to display all usernames.

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 %}
```
5

Explain lazy=True.

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 the {% extends %} statement used in my HTML files. (But the proctor are very nice)

Times asked 1

Official solution

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

Advice: Same question repeat

Search viva questions

Question sets

Community answers

No community answers yet

My solution

Community answers

No community answers yet

My solution

Community answers

No community answers yet

My solution

Community answers

No community answers yet

My solution

Community answers

No community answers yet

My solution

Community answers

No community answers yet

My solution

Community answers

No community answers yet

My solution

Community answers

No community answers yet

My solution

Community answers

No community answers yet

My solution

Community answers

No community answers yet

My solution

Community answers

No community answers yet

My solution

Community answers

No community answers yet

My solution

Community answers

No community answers yet

My solution

Community answers

No community answers yet

My solution

Community answers

No community answers yet

My solution

Community answers

No community answers yet

My solution

Community answers

No community answers yet

My solution

Community answers

No community answers yet

My solution

Community answers

No community answers yet

My solution

Community answers

No community answers yet

My solution

Community answers

No community answers yet

My solution

Community answers

No community answers yet

My solution

Community answers

No community answers yet

My solution

Community answers

No community answers yet

My solution

Community answers

No community answers yet

My solution

Community answers

No community answers yet

My solution