CSC263 Computer Networks

Computer Networks TU Board 2078 question paper

12 questionsSit this paper (timed)

Tribhuvan University

Bachelor of Science in Computer Science and Information Technology

Semester 4 · TU Board 2078

Course Title: Computer Networks (CSC263)

Full Marks: 60Pass Marks: 24Time: 3 hours

Candidates are required to give their answers in their own words as far as practicable. The figures in the margin indicate full marks.

Attempt any two questions (2 x 10 = 20)(2 × 10 = 20)

  1. 1.

    What is transmission media? How do guided media differ from unguided media? Explain different types of guided media in detail.

    10
  2. 2.

    What is flow control? Explain Stop-and-Wait ARQ with suitable example. How is it different from G-Back-N ARQ?

    10
  3. 3.

    Explain link state routing with example.

    10
  4. 4.

    Explain client/server network. How is it different from peer to peer network?

    10
  5. 5.

    What is CSMA/CD? Why is there no need for CSMA/CD on a full-duplex Ethernet LAN?

    10
  6. 6.

    What subnet ID and broadcast address of each subnet if you divide a class B network (150.10.0.0 – 150.10.255.255) in 4 different subnets. What is the new subnet mask?

    10
  7. 7.

    Explain the structure of IPv6 address. Compare IPv6 address with IPv4 address.

    10
  8. 8.

    What is virtual circuit network? Explain ATM as a virtual circuit wide area network.

    10
  9. 9.

    What is routing table? Differentiate static routing table with dynamic roting table.

    10
  10. 10.

    What is open-loop congestion control? Compare it with closed-loop congestion control.

    10
  11. 11.

    What are the different approaches for multimedia streaming? Explain.

    10
  12. 12.

    Write short note on (any two):

    1. Blackbone network
    2. ISDN
    3. ALOHA
    10

Attempt any Eight questions (8 x 5 = 40)(8 × 5 = 40)

  1. 1.

    What is transmission media? How do guided media differ from unguided media? Explain different types of guided media in detail.

    10
  2. 2.

    What is flow control? Explain Stop-and-Wait ARQ with suitable example. How is it different from G-Back-N ARQ?

    10
  3. 3.

    Explain link state routing with example.

    10
  4. 4.

    Explain client/server network. How is it different from peer to peer network?

    10
  5. 5.

    What is CSMA/CD? Why is there no need for CSMA/CD on a full-duplex Ethernet LAN?

    10
  6. 6.

    What subnet ID and broadcast address of each subnet if you divide a class B network (150.10.0.0 – 150.10.255.255) in 4 different subnets. What is the new subnet mask?

    10
  7. 7.

    Explain the structure of IPv6 address. Compare IPv6 address with IPv4 address.

    10
  8. 8.

    What is virtual circuit network? Explain ATM as a virtual circuit wide area network.

    10
  9. 9.

    What is routing table? Differentiate static routing table with dynamic roting table.

    10
  10. 10.

    What is open-loop congestion control? Compare it with closed-loop congestion control.

    10
  11. 11.

    What are the different approaches for multimedia streaming? Explain.

    10
  12. 12.

    Write short note on (any two):

    1. Blackbone network
    2. ISDN
    3. ALOHA
    10

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