Computer Networks 2072

Group A

Long Answer Questions:

Attempt all questions.                                                                                                (2x10=20)

1.      Discuss the relationship between transport layer and network layer. Discuss TCP as a transport layer protocol along with its segment structure.

OR

What is transmission media? Discuss each transmission media in detail.

2.      Why do we need routing algorithm? Discuss distance vector routing algorithm in detail.

Group B

Short answer Questions:

Attempt any eight questions.                                                                                       (5x8=40)

3.      What is connection oriented service? Differentiate it with connectionless service.

4.      Discuss the working principle of DNS.

5.      Why do we need multiplexing in data communication? Discuss.

6.      What is subnetting? Assume a class C network and divide it into four subnets. What is the value of new subnet mask?

7.      How does the system correct error after error detection?

8.      Discuss multimedia networking application.

9.      Why is network management a challenging task?

10.      Discuss the importance of congestion control in data communication.

11.      Write short notes on:

a.       HTTP

b.      Backbone