Computer Networks Question Paper for Fourth Semester Bsc. Computer Science Exam

Full Question Paper of subject Computer Networks in Fourth Semester Bsc. Computer Science Degree Examination conducted in colleges under Kerala University held during the period May 2009. Computer science is a credit and semester Course and Bsc. Computer Science includes Six Semesters and the fourth semester contains the Subject Computer Networks.

Reg.No. : .......................

Name : ...........................

Fourth Semester Bsc.(Computer Science) Degree Examination, May 2009

(2004 Scheme)


Time: 3 Hours Max.Marks:75


Answer any ten questions. Each question carries 3 marks.

1. What is channel capacity? How is it related to bandwidth?

2. What is meant by simplex, half duplex, full duplex communication system?

3. What is bandwidth compression?

4. What are the main functions of transport layer?

5. Differentiate between connection oriented service and connectionless service?

6. How is routing different from bridging?

7. What are the characteristics of "Flooding", a routing technique used in packet switching?

8. Briefly explain the ethernet frame features?

9. Explain the function of protocols in Computer Networks?

10. Both DNS and the IP address identify a host computer. Are both identifications necessary? Explain your answer?

11. What are the advantages of UDP over TCP?

12. Write short notes on IPV6 or datagram?


Answer any five questions. Each question carries 6 marks.

1. Describe the operation of satellite/ radio access control methods and their underlined technique?

2.Discuss the features of Data Link Layer?

3. Write short notes on Balanced vs Unbalanced transmission?

4. Compare the following transmission media with examples?

a) Twisted pair and Coaxial cable

b) Coaxial Cable and Optical Fiber

5. Describe the difference between synchronous and asynchronous transmission?

6. Explain in brief the network layer of the OSI reference model?

7. Discuss the implications of a single cable fault in Mesh, Star, Bus and Ring network Topologies?

8. What are the assumptions made by IP about individual networks in order to
achieve interconnection across networks?


Answer any one question. It carries 15 marks.

1. Describe the principle of packet collision detection and avoidance protocols?

2. Explain the various addressing models used in internet?


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