MU Information Technology (Semester 4)
Computer Networks
December 2012
Total marks: --
Total time: --
INSTRUCTIONS
(1) Assume appropriate data and state your reasons
(2) Marks are given to the right of every question
(3) Draw neat diagrams wherever necessary


1 (a) Explain the following with example:-
(i) Repeater
(ii) Hubs
(iii) Bridges
(iv) Switches
(v) Router
10 M
1 (b) Explain the layers details of OSI and TCP/IP Models.
10 M

2 (a) Explain the major components of telephone networks.
10 M
2 (b) Explain the error detection and error correction algorithms.
10 M

3 (a) What is CRC? Write the algorithm for computing checksum and explain with suitable example.
10 M
3 (b) Explain the following with examples: - MAC address, IP address, Socket, Baud Rate, Latency.
10 M

4 (a) Differentiate between the following:-
(i) Protocol and Interface
(ii) Connectionless and connection oriented service.
10 M
4 (b) Explain and compare the following:- Ethernet, Token Bus and Token Ring.
10 M

5 (a) Explain CSMA/CD.
10 M
5 (b) List the features of bluetooth and explain the network formation process.
10 M

6 (a) Explain FDMA, TDMA and CDMA.
10 M
6 (b) What are the different types of routing? Explain Distance Vector Routing.
10 M

7 (a) What are the congestion prevention policies? Explain the congestion control in virtual circuit and datagram subnets.
10 M
7 (b) Write note on SONET.
10 M



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