Download JNTUH MCA 3rd Sem R15 2019 December 823AE Computer Networks Question Paper

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Code No: 823AE R15

JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD

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MCA III Semester Examinations, December - 2019

COMPUTER NETWORKS

Time: 3hrs Max.Marks:75

Note: This question paper contains two parts A and B.

Part A is compulsory which carries 25 marks. Answer all questions in Part A. Part B consists of 5 Units. Answer any one full question from each unit. Each question carries 10 marks and may have a, b, c as sub questions.

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PART - A

5 x 5 Marks =25

1. What are the design issues of Data link layer? [5]
2. Write the uses of bridges. [5]
3. Define Flooding. [5]

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4. What is Packet Fragmentation? [5]
5. List the applications of application layer. [5]

PART -B

5 x 10 Marks =50

1. Explain about Sliding Window Protocols.

   OR

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   What is TCP/IP Model? Explain the functions and protocols and services of each layer. Compare it with OSI Model. [10]
2. Explain about the INTERNET history. [5+5]

   OR

   Write a short note on a) l-persistent CSMA b) Non-persistent CSMA c) P-persistent CSMA [10]
3. Explain about the Standard Ethernet.

   OR

   Write about learning bridges and spanning tree bridges. [5+5]

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4. Explain the count-to-infinity problem.

   OR

   Describe about the optimality principle. [5+5]
5. Explain about shortest path algorithm.

   OR

   What are the network layer design issues? [5+5]
6. What is Tunneling? Explain in detail.

   OR

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   Explain about the IP Version 6 Protocol. [5+5]
7. Explain in detailed about the Transport Layer. [10]

   OR

   Differentiate between FTP and HTTP.
8. Explain about UDP protocols. [5+5]

   OR

   Discuss in detail TCP segment header.

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9. Explain about TELNET and SSH. [5+5]

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