Mahatma Gandhi University (MGU) 2006 B.Tech Computer Science and Engineering Datacommunication - Question Paper

2006 Mahatma Gandhi University B.Tech Computer Science and Engineering Datacommunication paper may-june2006 ques. paper

B.TECH. DEGREE EXAMINATION, MAY/JUNE 2006 Fifth Semester

Branches ; Computer Science and EngineeringInfon&a.tion'Ileclinology DATA COMMUNICATION (R, T)

(New Scheme2002 admission onwards)

Time : Three Hours    Maximum : 100 Marks

Answer all questions.

Part A    ,

Each question carries 4 marks.'

1.    Explain each term of the equation e = A sin + ~_sin w_mt j, of FM wave.

2.    Explain Sampling theorem, with an example. What is aliasing ?

3.    With a sketch, explain simplex and half-duplex modes of data transmission.

4.    Explain the principle of message switching in digital communication.

5.    Explain the significance of Shannons channel capacity theorem.

6.    Explain Statistical TDM. What are its advantages ?

7.    Explain a method of detecting two-bit error and correcting 1-bit error.

8.    Discuss the Go-back-n ARQ retransmission technique used for error correction in data communication.

9.    With sketch, explain multidrop line in data communication. Give its advantages.

10.    Briefly explain GSM service.

(10 x 4 = 40 marks)

Part B

Each question carries 12 marks.

11.    With the help of block diagram, explain the generation of PCM.

Or

12.    Compare and contrast different analog modulation schemes.

13.    Explain frequency division multiplexing technique, with diagram.

Or

14.    Compare and contrast PSK and DPSK. List advantages and disadvantages of both.

15.    Explain serial and parallel data transmission in digital communication.

Or    

16.    List various noises present and its effects in data transmission. How noises can be minimized ?

17.    Explain the use of Block codes. Describe its structure. Discuss its structure. Describe in detail the generation of Block codes.    -

Or

18.    Give detailed explanation of any three transmission codes. Explain its uses.

19.    Explain different parts of computer communication system.

Or

20.    Discuss the different guided media in data communication. Compare all in terms of speed/data rate, distance covered, efficiency and cost.

'    (5 x 12 = 60 marks)

Attachment: mahatma-gandhi-university--mgu--2006-b-tech-computer-science-and-engineering-34493-1.pdf

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