Alagappa University 2007 M.C.A COMPUTER NETWORKS - Question Paper

Time : 3 hours Maximum : 100 marks
ans any 5 ques..
All ques. carry equal marks.
(5*20 = 100)

1. (a) Explain ISO reference model.
(b) Discuss broadband and narrowband ISDN.

2. (a) Explain the design problems of Data Link Layer.
(b) Explain CSMA protocols.

3. (a) Explain the shortest path routing algorithm. explain its merits and demerits.
(b) Explain ARP.

4. (a) Explain Multiplexing with an example.
(b) Illustrate briefly on IP addresses and TCP.

5. (a) Explain Secret and Public key algorithms.
(b) Explain Data Compression and its advantages.

6. (a) Discuss the role of Communication satellites in computer networks.
(b) Explain PPP.

7. (a) Explain Firewalls in detail.
(b) Discuss the protocols for Gigabit networks.

8. Write short notes on :
(a) E-mail privacy
(b) Multimedia
(c) ALOHA
(d) ATM LAN’s.

Earning:   Approval pending.