DISTANCE EDUCATION
M.Sc. (Computer Science) DEGREE EXAMINATION,
MAY 2016.
COMPUTER NETWORKS
(2007 onwards)
Time Three hours Maximum 100 marks
SECTION A — (10 3 30 marks)
Answer ALL questions.
1. Name the layers in a network model.
2. Give the expansion for ISDN.
3. What SLIP and PPP stands for?
4. Mention the design issues related in Data Link Layer.
5. Define Fragmentation.
6. Give the expansion for ICMP, RARP and ATM.
7. Mention the elements of Transport Protocol.
8. What is Internet?
9. What is web?
10. Give the expansion for SNMP, DNS.
Sub. Code
21
DE-3678
2
Ws2
SECTION B — 10 40 marks)
Answer any FOUR questions.
11. Discuss the Hardware needed for computer Networks.
12. How communication satellite can be used as transmission
media?
13. Explain the working concept of finite state models.
14. Discuss on Internet Multicasting.
15. Mention the performance issues related in Transport
Layer.
16. Explain the concept of Data compression.
SECTION C — 15 30 marks)
Answer any TWO questions.
17. Compare and contrast Broad band ISDN with Narrow
band ISDN.
18. Describe the congestion control algorithm in Network
Layer.
19. How secret and public key algorithms provides Network
Security?