Test Paper - Communication and Networks - Cochin University - Electrical and Electronics Engineering - 7th Semester - 2008, Study notes of Communications Engineering

Download Test Paper - Communication and Networks - Cochin University - Electrical and Electronics Engineering - 7th Semester - 2008 and more Study notes Communications Engineering in PDF only on Docsity! BTS (C}~ VIT—(S) - 08- 017-E B. Tech Degree VII Semester (Supplementary) Examination June 2008 EB/EVEE 701 COMPUTER COMMUNICATION AND NETWORKS (2002 Scheme) Time : 3 Hours Maximum Marks : 100 L . (a) Explain the different network topologies. 5 (10) (b) Explain the concept of internet and intemet services. (10) OR I With the help of a diagram explain each and every function performed by each layer : in OSI reference model. (20) It. (a) Differentiate between base band and broad band transmission. (5) (b) Expiain full duplex and half-dupiex links. G6) (©) What are the functions of MODEM? Explain the working of one MODEM in detail. (10) OR Vv. fa) Explain stop and wait sliding window protocol. (10) (b) Explain X — 21 digital interface. . (10) vy. (a) Explain the difference between virtual circuits and datagram. (8) (b) Explain any two congestion control algorithm, (12) OR VL @ Explain CSMA/CD, . (8) (b) Explain the different IEEE 802 standards. . (2) VIL (a) Explain client-server model. 7" (10) (b) Explain multiplexing and crash recovery qd) ‘ OR Vi. (a) Explain flow control and buffering. (10) (b) ‘With the help of a diagram explain the implementation of RPC. (10) Ix, (a) Explain the different data compression techniques. (10) (b) Explain the functions of presentation layer. (10) : OR x. Write short notes on : w@ Virtual terminal (ii) FTP {iii) Electronic mail {iv} Distributed system (vy) Cryptography. {20) ae