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Posted By: Mala Member Level: Diamond Posted Date: 07 Jan 2008
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2007 Bangalore University Computer Science IV Semester B.A./B.Sc. Examination, May/June 2007 Question paper
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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: 3 Hours Max. Marks: 90
Instructions: Answer all sections.
SECTION-A
Answer any ten questions: (2x10=20)
1. Mention any two advantages of computer networks.
2. What is Network topology?
3. List any two factors on which network performance depends.
4. Mention any two features of LAN.
5. What is serial transmission of data?
6. What is packet switching?
7. Give any two applications of ATM.
8. What is Token Ring?
9. What is Multiplexing?
11. List any two functions of Transport Layer.
12. What is firewall?
SECTION-B
Answer any five questions: (5x5=25)
13. Explain classification of networks.
14. Compare and contrast Synchronous and Asynchronous transmission.
15. Explain TCP/IP model.
16. Write a note on FDDI.
17. Explain Link State Routing.
18. Explain any two Network devices.
19. Explain the services offered by session layer.
20. Write a note on Digital signatures.
SECTION-C
Answer any three questions: (15x3=45)
21. Explain the OSI reference model with a neat diagram showing various layers. 15
22. a) Write a note on Error correction 8
b) Explain the X-21 Interface standard. 7
23. a) Explain TDM and FDM 10
b) Write a note on ISDN 5
24. a) Write a note on Congestion control 8
b) Explain any two Network devices. 7
25. a) Explain Data Encryption. 8
b) Write a note on RPC. 7
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