Download JNTUA M.Tech 1st Sem 2017 Feb 9D06104 Advanced Data Communications Question Paper

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Code: 9D06104

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M.Tech I Semester Regular & Supplementary Examinations January/February 2017

ADVANCED DATA COMMUNICATIONS

(Digital Systems and Computer Electronics)

Time: 3 hours Max. Marks: 60

Answer any FIVE questions

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All questions carry equal marks

1. 1. Give the comparison of ASK, FSK and PSK.
   2. Discuss about DPSK generation, recovery and its bandwidth consideration in detail.
2. Discuss the consequences if a connection fails for the following type of network:
   1. Five devices arranged in mesh topology.

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   2. Five devices arranged in star topology.
   3. Five devices arranged in tree topology.
3. 1. Describe about the features, operations and benefits of LAN and WAN.
   2. Explain about DTE – DCE interface.

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4. The code 11110101101 was received. Using hamming encoding algorithm, what is the original code sent. How to correct the burst error?
5. Illustrate with example and explain the operation of stop and wait protocol.
6. What are the types of switches used in circuit switching? Explain each type in detail.
7. Illustrate with diagram and write down the procedure for carriers sense multiple access collision detection and collision avoidance.

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8. Name three channelization protocols. Give comparison of the same.

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