DISTANCE EDUCATION
M.Sc. Years Integrated) (Software Engineering) DEGREE
EXAMINATION, DECEMBER 2017.
COMPUTER NETWORKS
Time Three hours Maximum 100 marks
SECTION A — x 8 40 marks)
Answer any FIVE questions.
1. Describe the uses of computer networks.
2. Write about ISDN.
3. Describe any four framing methods.
4. Describe the bit-map protocol and the problem associated
with the protocol.
5. Compare virtual circuit with datagram subnets.
6. Describe the address resolution protocol.
7. How can you establish a connection using a three-way
handshake?
8. Describe the different categories of encryption methods.
SECTION B — x 15 60 marks)
Answer any FOUR questions.
9. Explain the different guided media that are used for
transmission.
10. With suitable examples, explain error-correcting and
error-detecting codes.
Sub. Code
31
DE-3038
2
Ws9
11. Describe the Dijkstra's algorithm to compute the shortest
path through a graph.
12. Write about transmission control protocol in detail.
13. What are the issues related to network performance?
Explain.
14. Give an overview of what e-mail systems can do and how
they are organized.
15. Discuss about MPEG standard.
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