Bangalore University 2007-5th Sem B.A Computer Science Iester ./B.Sc, /e - Question Paper

IV Semester B.A./B.Sc. Examination, May/June 2007
(Semester Scheme)
COMPUTER SCIENCE
Computer Networks (Special Paper)
(Only for the Students of B.A./B.Sc. Offering Computer Science as Optional)


Time: three Hours Max. Marks: 90

Instructions: ans all parts.

SECTION-A

ans any ten questions: (2x10=20)

1. Mention any 2 advantages of computer networks.

2. What is Network topology?

3. List any 2 factors on which network performance depends.

4. Mention any 2 features of LAN.

5. What is serial transmission of data?

6. What is packet switching?

7. provide any 2 applications of ATM.

8. What is Token Ring?

9. What is Multiplexing?

11. List any 2 functions of Transport Layer.

12. What is firewall?

SECTION-B

ans any 5 questions: (5x5=25)

13. discuss classification of networks.

14. Compare and contrast Synchronous and Asynchronous transmission.

15. discuss TCP/IP model.

16. Write a note on FDDI.

17. discuss Link State Routing.

18. discuss any 2 Network devices.

19. discuss the services offered by session layer.

20. Write a note on Digital signatures.

SECTION-C

ans any 3 questions: (15x3=45)

21. discuss the OSI reference model with a neat diagram showing different layers. 15

22. a) Write a note on fault correction 8

b) discuss the X-21 Interface standard. 7

23. a) discuss TDM and FDM 10

b) Write a note on ISDN 5

24. a) Write a note on Congestion control 8

b) discuss any 2 Network devices. 7

25. a) discuss Data Encryption. 8

b) Write a note on RPC. 7


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Earning:   Approval pending.