Download GTU BE/B.Tech 2018 Winter 5th Sem Old 150702 Computer Network Question Paper

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GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER-V (OLD) EXAMINATION - WINTER 2018

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Subject Code:150702 Date: 27/11/2018
Subject Name: Computer Network
Time: 10:30 AM TO 01:00 PM Total Marks: 70

Instructions:
1. Attempt all questions.

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2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.

Q.1 (a) Give basic functionalities of TCP/IP and OSI reference models. Differentiate them [07]
(b) What is network topology? Give its types and explain them. [07]

Q.2 (a) What do you understand by Guided and Unguided media? Explain with examples. [07]

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(b) Explain TCP for network layer of OSI [07]
OR
(b) Explain UDP for network layer of OSI [07]

Q.3 (a) How sessions are created and terminated? Explain with respect to Transport layer functionality. [07]
(b) What is Ad-hoc network? List MANET protocols and explain any one. [07]

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OR
Q.3 (a) What is Hamming Code? Explain how it is useful in error correction. [07]
(b) Explain Leaky bucket algorithm. [07]

Q.4 (a) What is ALOHA protocol? Differentiate ALOHA and slotted ALOHA. [07]
(b) Explain modulation of binary signals for Phase, Frequency and Amplitude. [07]

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OR
Q.4 (a) When tunneling is used? How it is useful in communication? [07]
(b) What is congestion? Explain its control in virtual circuit and datagram subnets. [07]

Q.5 (a) What is CSMA? Explain persistent and non-persistent CSMA. [07]
(b) What is the use of DNS? How it is useful in internet browsing? [07]

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OR
Q.5 (a) What is CDMA? Explain with timing diagram and example. [07]
(b) What is an E-mail server? Explain its functionalities. [07]

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