Give me question paper for Cochin University B.Tech in Computer Science Engineering 6th Semester Data Communications Examination ?

Here I am giving you question paper for Cochin University B.Tech in Computer Science Engineering 6th Semester Data Communications Examination..

I. (a) Explain any two basic types of communication networks in service. (10)
(b) With diagrams, explain the different topological configurations of computer
communication networks. . (10)
OR
11. (a) Explain any four routing procedures used in a computer netwolk. (10)
(b) Write notes on : (i) LAN (ii) ISDN (10)
111. (a) Explain any two pulse modulation techniques.
(b) Compare digital communication and analog communication.
(c) What are the functions of a modem? List any two types of modem.
OR

IV. (a) Explain the functioning of a synchronous voice grade modem.
(b) Explain the features of optical fiber communication.
(c) Define: channel capacity, band rate, band width and WAN.
V. (a) Explain selective repeat ARQ implenientation. (5)
(b) Write notes on : (i) ~ i n ' ~ l e parity checks
(ii) Code generation in convolutional coding
3 c (iii) Error recovery in network layer (15)

OR
VI. (a) Explain any two types of ARQ implementation. (10)
(b) Write notes on : (i) Cyclic Redundancy Code
(ii) Hamming Code (10)

Differentiate between TDM and FDM.
Briefly explain: (i) Positioning remote multiplexers
(ii) Packet switching