Download GTU BE/B.Tech 2019 Winter 5th Sem Old 150702 Computer Network Question Paper

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Subject Code: 150702

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GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER-V (Old) EXAMINATION — WINTER 2019
Subject Name: Computer Network
Date: 25/11/2019
Time: 10:30 AM TO 01:00 PM

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Total Marks: 70
Instructions:
1. Attempt all questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.

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Q.1 (a) Draw diagram of OSI reference model? What are the benefits of layering approach in OSI model? 07
Q.1 (b) Explain :LAN, WAN and internet 07
Q.2 (a) Explain the role of fiber optics in computer networks. How a fiber optic network is formed? 07
Q.2 (b) List demerits of unguided transmission media 07

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OR
Q.3 (a) List difference between Transport layer and Network layer 07
Q.3 (b) What do you mean by framing? List various framing techniques and explain any two of them. 07
Q4 (a) What is ALOHA? Explain variants of ALOHA protocol. 07
OR

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Q4 (b) Explain Sliding Window Protocol. 07
Q.5 (a) What is error control? Explain CRC with example 07
Q.5 (b) Explain IPv4 datagram format and importance of each filed. 07
OR
Q.5 (a) Explain Distance Vector Routing with example. 07

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OR
Q.5 (b) Discuss the working principle of TCP 07
Q.5 (a) Explain various versions of CSMA protocols. 07
Q.5 (b) Write a note on HTTP. 07
Q.5 (a) What is the need of Domain name service? Explain DNS architecture. 07

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OR
Q.5 (b) Explain: ATM, DNS and its use. 07
Q.5 (a) Explain in detail Virtual LANs. 07