DISTANCE EDUCATION
M.Sc. (Information Technology) DEGREE EXAMINATION,
MAY 2017.
COMPUTER NETWORKS
(2002 onwards)
Time Three hours Maximum 100 marks
SECTION A — (10 3 30 marks)
Answer ALL questions.
1. Define Network.
2. What is meant by multicasting?
3. Give the expansion for ATM, ISDN.
4. Mention any three design issues in physical layer.
5. List the importance of Error detection code.
6. Give the purpose of collision free protocols.
7. Define Internet.
8. What is meant by fragmentation?
9. Define Multiplexing.
10. Give the importance of data compression.
Sub. Code
22
DE-482
2
wk 3
SECTION B — 10 40 marks)
Answer any FOUR questions.
11. Mention the uses of Computer Networks.
12. Discuss on Narrow band ISDN.
13. Explain the concept of
SLIP
PPP.
14. Give the purpose of Firewalls.
15. Discuss the protocols for Gigabit Networks.
16. How to provide privacy in Electronic Mails?
SECTION C — 15 30 marks)
Answer any TWO questions.
17. Explain the working concept of Telephone system.
18. Describe the routing algorithm.
19. Discuss the following standards in Multimedia
JPEG
MPEG.