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January 2026 term · Computer Networks · BSCS4024

Computer Networks Quiz 1: 15 March 2026 (January 2026 term)

The IIT Madras BS Computer Networks (Computer Networks) Quiz 1 paper sat on 15 Mar 2026, in the January 2026 term: 18 questions for 50 marks in 120 minutes. Every question is below with its answer. Take it as a timed mock test to be marked, or read it through first.

Questions
18
Marks
50
Duration
120 min
MCQ
7
MSQ
1
Numerical
9
Written
1
Take as mock testPractise with answers

Updated

Official paper: Computer Networks 15 Mar 26 · No negative marking.

Question 1

+1 markOne correct option

In computer networks, a client-server model allows multiple clients to request services from a single server.

  1. A

    True

  2. B

    False

Show answer

Correct answer

  • A

    True

Question 1 on its own page

Question 2

+1 markOne correct option

An IP address is used to identify a device’s location in the network rather than its hardware.

  1. A

    True

  2. B

    False

Show answer

Correct answer

  • A

    True

Question 2 on its own page

Question 3

+1 markOne correct option

In circuit-switched networks, resources are reserved for the entire duration of the communication session.

  1. A

    True

  2. B

    False

Show answer

Correct answer

  • A

    True

Question 3 on its own page

Question 4

+1 markOne correct option

UDP provides reliable, in-order delivery of packets similar to TCP.

  1. A

    True

  2. B

    False

Show answer

Correct answer

  • B

    False

Question 4 on its own page

Question 5

+1 markOne correct option

If packet #6 is lost in Selective Repeat ARQ with a window size of 4, only 4 packets must be retransmitted.

  1. A

    True

  2. B

    False

Show answer

Correct answer

  • B

    False

Question 5 on its own page

Question 6

+3 marksOne correct option

A switch needs to transmit a packet of size 10,000 bits over a link with a transmission rate of 100 Mbps. What is the transmission delay?

  1. A
  2. B
  3. C
  4. D
Show answer

Correct answer

  • B
Question 6 on its own page

Question 7

+5 marksOne correct option
  1. A
  2. B
  3. C
  4. D
Show answer

Correct answer

  • B
Question 7 on its own page

Question 8

+3 marksOne or more correct options

Consider the undirected network graph shown below:

Which of the following is/are a critical nodes?

Select all that apply.

  1. A

    P

  2. B

    Q

  3. C

    R

  4. D

    T

Show answer

Correct answers

  • B

    Q

  • C

    R

Question 8 on its own page

Question 9

+3 marksNumerical answer

A download completes in 2 seconds with an average throughput of 180 KB/s using curl. Calculate the size of the downloaded file (in KB).

Show answer

Correct answer: 360

Question 9 on its own page

Question 10

+3 marksNumerical answer
Show answer

Correct answer: 3.25

Question 10 on its own page

Question 11

+3 marksNumerical answer
Show answer

Correct answer: 62.5

Question 11 on its own page

Question 12

+3 marksNumerical answer
Show answer

Correct answer: 0.15

Question 12 on its own page

Question 13

+3 marksNumerical answer

In a Selective Repeat ARQ protocol, the sender uses a window size of 10. What is the minimum number of bits required for the sequence number field?

Show answer

Correct answer: 5

Question 13 on its own page

Question 14

+3 marksNumerical answer
Show answer

Correct answer: 1

Question 14 on its own page

Question 15

+3 marksNumerical answer
Show answer

Correct answer: 4.00

Question 15 on its own page

Question 16

+5 marksWritten answer
Show answer

Correct answer: 0x2C94

Question 16 on its own page

Question 17

+4 marksNumerical answer
Show answer

Correct answer: 200

Question 17 on its own page

Question 18

+4 marksNumerical answer
Show answer

Correct answer: 6

Question 18 on its own page