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Proctor APPDEV_LEVEL1_VIVA20@STUDY.IITM.AC.IN

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10 Questions
1 Sets
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Tips for this examiner: Please be well known about the basics u may master the hard topics but if the basics slips from your mind than you may fall very badly.

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  1. 1
    Viva proctor 20:
    Times asked 1
    Official solution

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

  2. 2
    Be sure to turn off your co-pilot!!
    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
    Overall the proctor asked easy questions (i was expecting him to write some code in the notepad but he didn't give any questions regarding that)
    Times asked 1
    Official solution

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

  4. 4
    First 10 min went into opening and setting up the project.
    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
    Then the questions were ÷
    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. 6
    1-difference b/w Authorization 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)
  7. 7
    2-difference b/w put and patch
    Times asked 1
    Official solution

    SimplePOST naya janam (har baar naya id). PUT poori photo replace. PATCH sticker chipkao.

    POST create, not idempotent. PUT full update, idempotent. PATCH partial.

    POST ki jagah PUT se REST semantics toot. GET typically no body.

    CRUD map: POST create, GET read, PUT/PATCH update, DELETE delete.

    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

    POST /api/venues
    PUT  /api/venues/1   {all fields}
    PATCH /api/venues/1 {only name}

    Project example: POST /api/venues create. PUT /venues/1 saari fields. PATCH sirf name.

  8. 8
    3-Asked me what is dom.
    Times asked 1
    Official solution

    SimpleDOM HTML tree. JS nodes change. Vue Virtual DOM ke through, direct kam.

    Manipulation innerHTML vs Vue data. Remove CSS class = rules gone layout may collapse.

    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: Inspect Elements. Vue devtools.

  9. 9
    4-code change to disable a button.
    Times asked 1
    Official solution

    SimpleLive UI change: relevant CSS/HTML template kholo — color, margin, flex, bootstrap class. Save + hard refresh.

    Example

    /* button red */
    .btn-primary { background: red; }
    
    /* center navbar item */
    .navbar { justify-content: center; }

    Viva tipDevTools se pehle try, phir file mein permanent change.

  10. 10
    5-changing the port
    Times asked 1
    Official solution

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

Advice: Please be well known about the basics u may master the hard topics but if the basics slips from your mind than you may fall very badly.
Created for educational purposes only. Questions are based on students' personal experiences and may not reflect actual exam content.