Madras University (UnOM) 2009 B.C.A Computer Application Data Communications and Networking - Question Paper

APRIL 2009 Maximum: 100 marks

Time three hours

PK6A DATA COMMUNICATIONS AND NETWORKING

Part A (10x3 = 30 marks)

ans any ten

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

2. Distinguish ranging from 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 fault.

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)

ans any five

13. Discuss about various categories of Network topology.

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

15. Distinguish ranging from Asynchronous and Synchronous Transmissions.

16. Write short notes on fault detection.

17. Discuss briefly about FDDI.

18. Explain about X.25 layers.

19. Write short notes on WWW.

Part C (4x10=40marks)

ans any four

20. Explain about various 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

Earning:   Approval pending.