COMPUTER NETWORKS (CN) DECEMBER 2012 SEMESTER 5
Con. 9854-12 KR-5231(3 Hours) [Total Marks :- 100]
N.B.: (1) Question No.1 is compulsory.
(2) Attempt any four questions out of remaining six questions.
(3) Assume suitable data wherever required.
1. (a) Explain the following with example : - [10 Marks]
(i) Repeater
(ii) Hubs
(iii) Bridges
(iv) Switches
(v) Router
(b) Explain the layers details of OSI and TCP/IP Models. [10 Marks]
2. (a) Explain the major components of telephone networks. [10 Marks]
(b) Explain the error detection and error correction algorithms. [10 Marks]
3. (a) What is CRC? Write the algorithm for computing check sum and explain with suitable
example. [10 Marks]
(b) Explain the following with examples :- [10 Marks]
MAC address, IP address, socket, Baud rate, Latency.
4. (a) Differentiate between the following: -[10 Marks]
(i) Protocol and Interface
(ii) Connectionless and connection oriented service.
(b) Explain and compare the following :-
Ethernet, Token Bus and Token Ring.
5. (a) Explain CSMA/CD. [10 Marks]
(b) List the features of bluetooth and explain the network formation process. [10 Marks]
6. (a) Explain : FDMA, TDMA and CDMA. [10 Marks]
(b) What are different types of routing? Explain distance vector routing. [10 Marks]
7. (a) What are the congestion prevention policies? Explain the congestion control in virtual circuits
and datagram subnets. [10 Marks]
(b) Write note on : -SONET. [10 Marks]
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