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TAMIL NADU OPEN UNIVERSITY MCA - II (SEM 3) JUN 2008 : Computer Networks

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Wk 6 MCA 655 MCA-15 M.C.A. DEGREE EXAMINATION JUNE 2008. Second Year/Third Semester COMPUTER NETWORKS Time : 3 hours Maximum marks : 75 Answer for 5 marks questions should not exceed 2 pages. Answer for 10/15 marks questions should not exceed 5 pages. PART A (5 5 = 25 marks) Answer any FIVE questions. 1. Define signal to noise ratio. Then discuss the maximum data rate of a noisy channel as stated by Shannon. 2. Distinguish between the broadcasting, and multicasting. terms unicasting, 3. With relevant examples discuss oriented and connectionless services. connection Wk 6 4. Distinguish between adaptive and non adaptive routing algorithms. Give relevant examples. 5. Distinguish between circuit switching and packet switching. 6. Explain the principle of working of stop and wait protocol. 7. What is a router? Which layer device is a router? Discuss. PART B (5 10 = 50 marks) Answer any FIVE questions. 8. Diagrammatically ISO OSI model. illustrate and discuss the 9. With relevant diagrams explain the working of an Optical Transmission System. Also discuss the different types of optical fibres. 10. Explain the working of a Token Bus. Give diagrammatic illustration. 11. Explain the working of ALOHA, SLOTTED ALOHA, and CSMA protocols. 12. With an example discuss shortest path routing algorithm. 2 MCA 655 Wk 6 13. Tabulate the states in the TCP connection management FSM and discuss the same. 14. Diagrammatically illustrate and discuss the ATM architecture. 3 MCA 655

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Additional Info : Mca - II (sem 3) June 2008 Question Paper - Computer Networks
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