Seventh Semester B.Tech Degree Examination,

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Seventh Semester B.Tech Degree Examination, 2012

(2003 Scheme)

03.701. COMPUTER NETWORKS (RF)

PART-A

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       Answer all questions

1.       Compare LAN, WAN and MAN.

2.       Write a short note on ATM networks.

3.       Explain broad band narrow band ISDN.

4.       What is meant by flow control? Which layers deal with it?

5.       Write notes on pure ALOHA and slotted ALOHA.

6.       Explain CSMA/CD.

7.       Compare adaptive and non adaptive routing.

8.       Explain differential Manchester encoding.

9.       Explain any one congestion control algorithm.

10.   What is the use of ICMP?

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PART-B

Answer any two questions from each Module

Module-I

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11. Explain briefly the functions of layers in OSI reference model.

   12. Write notes on optical fiber communication and wireless communication.

   13. Explain error detection and correction codes.

Module-II

14. Explain IEEE 802.5 token ring standard.

15. Explain IEEE 802.3 Ethernet LAN standard.

16. Explain sliding window protocol. Explain various ARQ techniques.

Module-III

17. Explain any three routing algorithms.

18. Explain TCP segment header.

19. Write notes on:

          i) DNS

        ii) SMTP