COMPUTER NETWORKS (CN) MAY 2010 COMPUTER SCIENCE SEMESTER 5
Con. 3471-10 (REVISED COURSE) AN-4225(3 Hours) [Total Marks: 100]
N.B.: (1) Question No.1 is compulsory.
(2) Attempt any four out of remaining six questions.
(3) Figures to the right indicate full marks.
1. (a) What is the difference between protocol and service interface? Explain your answer in terms
of the OSI 7 layer model. [10 Marks]
(b) Describe any five functions of data link layer with suitable example. [10 Marks]
2. (a) Explain one-bit sliding window protocol i detail. [10 Marks]
(b) Explain ALOHA and slotted ALOHA in detail. [10 Marks]
3. (a) Explain Dijkstra's Algorithm as shortest path routing with example. [10 Marks]
(b) Explain the working of Leaky Bucket Algorithm. Why Leaky Bucket Algorithm is used in
Computer Network. [10 Marks]
4. (a) Draw and explain the structure of JP Frame Header. [10 Marks]
(b) Explain classful Addressing in IPU4. [10 Marks]
5. (a) What is count to infinity problem in distance vector routing? [10 Marks]
(b) Explain Three way Handshake Technique in TCP. [10 Marks]
6. (a) Explain working of following Network components and state in which layer they work.
Repeaters, Hubs, Bridgers, Routers, Switches, Gateways. [10 Marks]
(b) Differentiate between virtual circuit and datagram subnets. [10 Marks]
7. Write short notes on:- [20 Marks]
(a) AdHoc Networking
(b) Comparison of 802.3 and 802.11
(c) SONET
(d) Differentiate Data Link Layer and Transport Layer
(e) Quality of service (QOS) of Internetworking.
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