Calicut University 2007 B.E Electronics and Instrumentation Engineering SEVENTH SEMESTER B.TECH.(ENGINEERING) - DATA AND COMPUTER COMMUNICATION - Question Paper

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SEVENTH SEMESTER B.TECH.(ENGINEERING) DEGREE EXAMINATION, DECEMBER 2007
AI 04 702 DATA AND COMPUTER COMMUNICATION

Time :Three hours. Maximum:100 marks

1.

a) What is meant by signal Encoding? discuss its significance.

b) Explain the advantages and importance of broadband networks.

c) What are the kinds of spread spectrum techniques? discuss the applications of spread spectrum?

d) Define and discuss CDMA and its kinds.

e) Give an account on wired LAN.

f) Differentiate circuit switching from packet switching.

g) Explain the protocol standards of Internet.

h) Explain the significance of network security.

(8x5=40 marks)

11.(a)

I. Differentiate ISDN from PSDN.(7 marks)

II. Explain the functions of multi-service networks.(8 marks)

Or

(b)

I. Define and discuss channel capacity.(7 marks)

II. Derive an expression for channel capacity.(8 marks)


111.(a)

I. Give an account on ‘Hamming codes’.(7 marks)

II. Explain the advantages and applications of CDMA.(8 marks)

Or

(b)

I. Explain the concept of TPM. discuss the principle of TDM with a neat block diagram.(7 marks)

II. Give an account on ‘XDSL’.(8 marks)


1V.(a) discuss in detail the principles of routine and congestion control in switched data networks.(15 marks)

Or

(b) Write notes on:
I. Wireless LANs.(7 marks)

II. Ethernet switching.(8 marks)

V.(a) define in detail the architecture of Internet Working.(15 marks)

Or

(b) define the subsequent

I. Application support protocol.(7 marks)
II. High speed LANs.(8 marks)


(4 x 15=60 marks)

Earning:   Approval pending.