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Posted Date: 15 Jan 2011      Posted By:: Janaki V    Member Level: Silver  Points: 5 (₹ 1)

2009 B.C.A. Computer Application University of Madras BCA Data Communications and Networking Question paper



Course: B.C.A. Computer Application   University/board: University of Madras





APRIL 2009 Maximum: 100 marks

Time 3 hours

PK6A DATA COMMUNICATIONS AND NETWORKING

Part A (10x3 = 30 marks)

Answer any ten

1. What are the components of a data communication system? List them.

2. Distinguish between point to point and multi point connections

3. What is the function of Network Layer?

4. Define Serial Transmission.

5. What is meant by FDM?

6. What are MODEMS?

7. Write a note on Single-bit error.

8. Define Switched Network.

9. What is ISDN?

10. Define ATM.

11. What are Gateways?

12. What is TCP/IP Network?

Part B(5x6=30marks)

Answer any five

13. Discuss about different categories of Network topology.

14. What are the responsibilities of the transport layer? Discuss briefly.

15. Distinguish between Asynchronous and Synchronous Transmissions.

16. Write short notes on Error detection.

17. Discuss briefly about FDDI.

18. Explain about X.25 layers.

19. Write short notes on WWW.

Part C (4x10=40marks)

Answer any four

20. Explain about different categories of computer networks.

21. Describe in detail Unguided Media.

22. Explain about Token Bus and Token Ring.

23. Discuss in detail Connection Oriented and Connectionless services.

24. Explain about ISDN Layers

25. Write short notes on: (a) Bridges (b)ATM protocol





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