Download JNTUA MBA 2018 May 4th Semester 14E05406 Data Communication and Network Analysis Question Paper

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Code: 14E05406

Time: 3 hours

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MBA IV Semester Regular & Supplementary Examinations May 2018

DATA COMMUNICATION & NETWORK ANALYSIS

(For students admitted in 2014, 2015 & 2016 only)

All questions carry equal marks

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SECTION -A

Answer the following: (05 X 10 = 50 Marks)

Max. Marks: 60

1. Explain OSI protocol stack briefly.

   OR

   Explain Time Division Multiplexing in detail.

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2. Explain any two network layer protocols in detail.

   OR

   Explain two popular approaches to packet switching.
3. Explain Classful addressing in detail.

   OR

   Explain how flow control achieved in transport layer.
4. Explain File transfer protocol in detail.

   OR

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   Explain symmetric key cryptography in detail.
5. Explain how quality of service is provided by ISDN.

   OR

   Explain any two protocols associated with application layer.

SECTION -B

(Compulsory Question) 01 X 10 = 10 Marks

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Case study:

It is necessary to formulate the Hamming code for four data bits D3, D5, D6 and D7 together with three parity bits P1, P2 and P4.

Questions:

1. Evaluate the 7-bit composite code word for the data word 0110.
2. Evaluate the three check bits C1, C2 and C4 assuming no error.

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3. Assume an error in bit D5 during storage into memory. Show how the error in the bit is detected and corrected.

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