2010 Anna University Chennai B.E Computer Science and Engineering Cs 2302 — computer networks - november/december 2010 Question paper

B.E./B.Tech. DEGREE EXAMINATION, NOVEMBER/DECEMBER 2010
Fifth Semester

Computer Science and Engineering
CS 2302 — COMPUTER NETWORKS

(Common to Information Technology)
(Regulation 2008)

Time : Three hours Maximum : 100 Marks
Answer ALL questions
PART A — (10 × 2 = 20 Marks)

1. What are the two types of line configuration?
2. What do you mean by error control?
3. What are the functions of Bridges?
4. What is the advantage of FDDI over a basic Token Ring?
5. What is meant by circuit switching?
6. What is multicasting?
7. What is the function of a router?
8. What are the advantages of using UDP over TCP?
9. What is SMTP?
10. What is PGP?

PART B — (5 × 16 = 80 Marks)

11. (a) Explain in detail the error detection and error corrections. [Marks 16]
Or
(b) Discuss in detail about the layers of OSI model. [Marks 16]

12. (a) Name the four basic network Topologies and explain them giving all the
relevant features. [Marks 16]
Or
(b) Explain the functioning of wireless LAN in detail. [Marks 16]

13. (a) Write notes on the following :
(i) Internet protocol
(ii) Routers. [Marks 16]
Or
(b) Discuss in detail the various aspects of IPv6. [Marks 16]

14. (a) With neat architecture, explain TCP in detail. [Marks 16]
Or
(b) Explain adaptive flow control in detail and its uses. [Marks 16]

15. (a) Explain the SMTP and HTTP. Give their uses, state strengths and
weaknesses. [Marks 16]
Or
(b) Explain the role of a DNS on a computer network. [Marks 16]