Computer Networks 2018 – BSc Computer Science Part 3

Paper code: 13525
1525
B.Sc. (Computer Science) (Part 3)
Examination, 2018
Paper No. 3.1
COMPUTER NETWORKS

Time: Three Hours] [Maximum Marks: 50

Note: Attempt any five questions. All questions carry equal marks.

1. (a) Define Computer Network. What is the goal of Computer Network?

(b) Compare TCP/IP of OSI reference model.

2. (a) What do you mean by Transmission Media? Explain different types of transmission media.

(b) What is cross-talk? How is it minimized in case of twisted pair of wire?

3. (a) How is flow control performed in data link layer?

(b) Explain stop and wait protocols.

4. (a) Explain static and dynamic channel allocation in LANS and MAN.

(b) Differentiate between token bus and token ring.

5. (a) Explain feature of paging system, cordless telephones.

(b) Describe design issues of medium access sub-layer.

6. (a) Differentiate between shortest path routing and flow based routing.

(b) Explain the various protocol supported in the network layer.

7. (a) Describe the types of IP address.

(b) Explain tunnelling in the internet protocol.

8. (a) Explain design issues of transport layer.

(b) Explain Network Novell Netware.

9. Explain any five of the following terms:

1. PPP
2. SMTP
3. MIME
4. HUB
5. BRIDGE
6. One bit sliding window
7. Firewalls
8. IEEE standard 802.3

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