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

Download GTU (Gujarat Technological University) BE/BTech (Bachelor of Engineering / Bachelor of Technology) 2018 Winter 5th Sem Old 150702 Computer Network Previous Question Paper

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Seat No.: ________ Enrolment No.___________

GUJARAT TECHNOLOGICAL UNIVERSITY

BE - SEMESTER ?V (OLD) EXAMINATION ? WINTER 2018
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.

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
(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
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
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
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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