Saturday, April 2, 2016

Madras University SAE6A Data Communication and Networking 2011 Question Paper

University Name : Madras University
Name of the Degree : B.Sc Computer Science
Title of the Paper : Data Communication and Networking
Month & Year of Examination: April & 2011
Subject Code : SAE6A
Semester : VI
Year : Third Year

Time : Three hours
Maximum : 75 marks

PART A - (10 * 2 = 20 marks)
Answer any TEN questions.
All questions carry equal marks.
Each answer should not exceed 30 words.

1. What are the goals of a network?

2. What is an interface?

3. What do you mean by bit stuffing?

4. Distinguish between LAN and WAN.

5. What do you understand by flooding?

6. What do you mean by congestion?

7. State any one of the difference between the network service and transport service.

8. What are bridges?

9. Define firewalls and gateways.

10. What are functions of applications layer?

11. What is meant by virtual circuit?

12. Mention the uses of data compression.

PART B - (5 * 5 = 25 marks)
Answer any FIVE questions.
All questions carry equal marks.
Each answer should not exceed 200 words.

13. Write a note on error detection and correction.

14. Write a short note on Transparent Bridges.

15. Explain the design issues of network layer.

16. Explain briefly the Distance Vector Routing.

17. Explain about Transport Layer Services.

18. Explain how connections are established using three-way handshake.

19. Explain about Electronic mail.

PART C - (3 * 10 = 30 marks)
Answer any THREE questions.
All questions carry equal marks.
Each answer should not exceed 500 words.

20. Explain the OSI Network architecture specifying the functions of each layer.

21. Explain the various transmission media for data communication.

22. Write in detail about Transport Service Primitives.

23. Explain in detail any four multiple access protocols.

24. Define adaptive and non-adaptive algorithm. Explain in detail any two routing algorithm. 
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