Viva Prep

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

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.

SimpleVue = UI ka smart assistant. Data badlo, screen khud update. MAD1 Jinja har click pe naya HTML.

Progressive frontend framework. Components, reactivity, directives.

MAD2 SPA: ek index.html, Vue Router pages, Flask sirf JSON.

Fayde: easy, SFC, docs. Vs React: templates HTML-like, course sikhata hai. Vs plain JS: baar-baar DOM mat chhedo.

Example

<!-- HelloWorld.vue -->
<template>
  <h1>{{ msg }}</h1>
</template>
<script>
export default { data() { return { msg: 'Hello' } } }
</script>

Project example: Navbar.vue + views (Login, Dashboard). data() / setup() reactive. fetch APIs.

Viva tipFayde: easy, SFC, reactivity. Vs React: chhota learning curve. Vs plain JS: UI state auto-update.

SimplePinia naya store: mutations nahi, seedha state. Vue 3 recommended.

defineStore. Vuex vs Pinia: naya project Pinia. Purana Vuex valid.

Component = reusable UI block (Navbar, Card). Props parent→child data, emit child→parent event. Slots parent HTML inner content.

computed cache + reactive derive (filtered list). watch side-effect (query change pe API). methods events. ref() primitive, reactive() object. Vuex/Pinia global store; localStorage persist, store nahi.

SFC: template + script + style ek .vue file. Parent-child exam favourite: list parent, row child :item + @delete.

Project example: stores/user.js. Agar Vuex hai to Pinia ka naam mat lo unless used.

SimpleVue.js frontend framework — reactive UI components. MAD2 mein common, MAD1 optional.

Component: reusable UI (Navbar.vue) + data + template.
Props: parent → child data. Child → parent: $emit('update', val).
Slots: parent child ke andar extra HTML daal sakta hai.
Lifecycle: created (data setup), mounted (DOM ready — API call), updated, unmounted.
v-model two-way bind. Vue Router SPA routes (routes.js). Vuex/Pinia global state; mutations sync change, actions async.
Standalone component: khud ke saath compile, parent register kam.

SimpleType coercion = auto type convert (JS '5'+1 → '51'). Strict === prefer karo. TypeScript types coercion kam karta hai.

SimpleSQLAlchemy Python ka sabse popular ORM hai. MAD1 mein Flask-SQLAlchemy wrapper use hota hai.

db = SQLAlchemy(app)

class Book(db.Model):
    id = db.Column(db.Integer, primary_key=True)
    title = db.Column(db.String(80), nullable=False)

Operations: db.session.add(obj), .commit(), .delete(obj), Model.query.all(), .filter_by(), .get_or_404(id).
db.Model ek class hai (function nahi). db object engine + session + metadata hold karta hai.

SQLALCHEMY_TRACK_MODIFICATIONS=False extra signals band karta hai, performance warning hatati hai.

SimpleLive coding: notepad/editor mein chhota Flask route / Jinja loop / model field. Calm raho, run karke dikhao.

SimpleLive coding: notepad/editor mein chhota Flask route / Jinja loop / model field. Calm raho, run karke dikhao.

SimpleCode explain formula: input kya aaya → auth/validation → DB change → response/UI.

Viva tipFunction signature + 3-4 important lines + edge case.

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.

SimpleDemo 5–7 min ki kahani: saari roles, koi milestone skip nahi, bolte-bolte dikhao.

Examiner list tick karta hai. Crash ho to panic nahi — terminal error padho.

Code tab kholna jab poochhein. Extra uncommitted features mat dikhana agar portal ZIP mein nahi.

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

Project example: Jo statement/parking/jobs/tickets hai uske user+admin journeys.

Viva tipBol: 'Yahan overbooking rokta hoon'. Mandatory features pehle, polish baad.

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

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

Viva tip1 minute elevator pitch ready rakho, phir demo.

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.

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

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

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)

SimpleLive jobs: Redis, worker, beat, crontab abhi, logs + email/CSV.

Scheduled vs user-triggered dono dikhao. Missing feature honestly.

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) redis
2) worker
3) beat
4) crontab now
5) logs + MailHog

Example

CELERY_BEAT_SCHEDULE = {
  'daily-reminder': {
    'task': 'jobs.daily_reminder',
    'schedule': crontab(hour=18, minute=0),
  },
}

Project example: Change schedule current time. MailHog. Export button 202.

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.

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

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

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.

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.

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().

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

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

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

Viva tip1 minute elevator pitch ready rakho, phir demo.

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

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.

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

Viva tip1 minute elevator pitch ready rakho, phir demo.

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

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

SimpleCode explain formula: input kya aaya → auth/validation → DB change → response/UI.

Viva tipFunction signature + 3-4 important lines + edge case.

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

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

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

Simpledata() local diary. Store school notice board.

Search query local. Logged-in user store. Persist: store + localStorage together.

state vs data: similar concept, scope alag.

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

// local
data() { return { q: '' } }
// global
this.$store.state.user

Project example: Login.vue local form fields. this.$store.state.user Navbar.

Simplev-if ghar se nikaal deta hai (DOM se). v-show sirf light band karta hai (display:none).

v-if false → element exist hi nahi — costly create/destroy, lekin secret HTML DOM mein nahi.
v-show → hamesha DOM, CSS hide, toggle tez.

Rare / permission UI: v-if (admin panel). Dropdown bar-bar: v-show.

: shorthand v-bind ka, v-if ka nahi.

Example

<div v-if="isAdmin">Admin panel</div>
<div v-show="open">Dropdown</div>

Project example: Admin links v-if="role==='admin'". FAQ accordion v-show="open".

Viva tipSecurity ke liye sirf v-if kaafi nahi — API 403 bhi chahiye.

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.

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

SimpleLive coding: notepad/editor mein chhota Flask route / Jinja loop / model field. Calm raho, run karke dikhao.

SimpleClick → Celery → worker CSV → email/download. Columns verify.

csv module. Auth required. Don't freeze UI — 202 + poll.

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

@celery.task
def export_venues_csv(user_id):
    rows = Venue.query.all()
    # csv.writer, mail.send
    return 'ok'

Project example: Admin export venues. MailHog attach ya file open.

Viva tipNetwork tab mein job trigger API dikhao, phir MailHog/file open karke columns verify karo.

SimpleLive jobs: Redis, worker, beat, crontab abhi, logs + email/CSV.

Scheduled vs user-triggered dono dikhao. Missing feature honestly.

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) redis
2) worker
3) beat
4) crontab now
5) logs + MailHog

Example

CELERY_BEAT_SCHEDULE = {
  'daily-reminder': {
    'task': 'jobs.daily_reminder',
    'schedule': crontab(hour=18, minute=0),
  },
}

Project example: Change schedule current time. MailHog. Export button 202.

SimpleDoosri booking same slot: unique constraint + query.exists + 400 message.

Frontend disable UX. Backend source of truth. Race: two users unique(slot).

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

if Booking.query.filter_by(user_id=uid, slot_id=sid).first():
    return jsonify(message='Already booked'), 400

Project example: Click book twice. Second 400 Already booked. DB unique.

SimpleCascade parent delete pe children pe kya ho: delete-orphan related rows hata deta hai.

Example

db.relationship('Spot', cascade='all, delete-orphan')

Viva tipParking lot delete → uske spots/bookings policy clear bolo.

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)

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.

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

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.

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.

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.

SimpleLifecycle = component ki zindagi ke stages. API call tab jab DOM ready ho — mounted.

created: instance bani, this data, DOM nahi. mounted/onMounted: page pe aa gaya — fetch, Chart.js, setInterval.
updated: data change ke baad. unmounted: cleanup (clearInterval) warna memory leak.

Dashboards onMounted isliye: canvas/API tab valid. created mein $el nahi.

Composition: onMounted(() => {}) setup ke andar.

Example

export default {
  async mounted() {
    const r = await fetch('/api/venues')
    this.venues = await r.json()
  }
}

Project example: Venues.vue mounted fetch list. Clock component unmounted pe interval clear.

Viva tipcreated: data setup, DOM nahi. mounted/onMounted: $el mil gaya — fetch yahi. Dashboards isliye onMounted use karti hain.

SimpleCache = pehli baar hisaab karke copy rakh lo, doosri baar copy dikha do.

Baar-baar same expensive kaam (DB query, counting bookings) mat karo. Result Redis jaise store mein timeout ke saath rakh do.

Cache hit: key mil gayi, DB skip. Cache miss: DB se lao, SET karo, return karo.

Tradeoff: speed vs stale data. Admin naya venue add kare aur cache 50s ka ho to user purani list dekh sakta hai — isliye write pe invalidation zaroori hai.

Browser cache, Flask-Caching, Redis alag layers hain. MAD2 examiner Redis + @cache.cached code dekhta hai.

Example

@cache.cached(timeout=50, query_string=True)
@app.route('/api/shows')
def shows():
    return jsonify([s.serialize() for s in Show.query.all()])

Project example: Admin dashboard counts / venues list cache. Create/update/delete ke baad cache.delete('venues').

Viva tipprint('DB queried') function ke andar laga ke miss/hit demo karo — hit pe print nahi chalega.

SimpleSync line pe ruk jao (2+2). Async I/O pe wait karte hue baaki kaam chalte (fetch, Celery).

JS async ≠ Celery async jobs. Context se bolo.

Why async jobs: slow/scheduled/bulk off request thread.

Pehle 1-line definition, phir related MAD2 layer (Vue SFC / Flask route / models.py / tasks.py / Redis).

4-line formula: input kahan se aaya, auth/validation kaunsa, DB ya cache ya Celery, kya return.

Related mix mat karo — cache ≠ Celery, authentication ≠ authorization, v-if ≠ v-show, Beat ≠ Worker. Follow-up ke liye ek difference ready rakho.

Project example: Login sync hash check fast. Email Celery async. Vue fetch async.

Simplev-if ghar se nikaal deta hai (DOM se). v-show sirf light band karta hai (display:none).

v-if false → element exist hi nahi — costly create/destroy, lekin secret HTML DOM mein nahi.
v-show → hamesha DOM, CSS hide, toggle tez.

Rare / permission UI: v-if (admin panel). Dropdown bar-bar: v-show.

: shorthand v-bind ka, v-if ka nahi.

Example

<div v-if="isAdmin">Admin panel</div>
<div v-show="open">Dropdown</div>

Project example: Admin links v-if="role==='admin'". FAQ accordion v-show="open".

Viva tipSecurity ke liye sirf v-if kaafi nahi — API 403 bhi chahiye.

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.

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.