Download GTU BE/B.Tech 2019 Summer 8th Sem Old 181101 Data Communication And Networking Question Paper

Download GTU (Gujarat Technological University) BE/BTech (Bachelor of Engineering / Bachelor of Technology) 2019 Summer 8th Sem Old 181101 Data Communication And Networking Previous Question Paper

1
Seat No.: ________ Enrolment No.___________

GUJARAT TECHNOLOGICAL UNIVERSITY

BE - SEMESTER ?VIII (OLD) EXAMINATION ? SUMMER 2019
Subject Code: 181101 Date: 13/05/2019

Subject Name:Data Communication And Networking

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) Compare and contrast OSI reference model and TCP/IP reference model. 07
(b) Differentiate between unguided and guided transmission media and explain
guided transmission media in detail.
07

Q.2 (a) Differentiate between Hub, Switches and Routers. Also define active hub and
passive hub.
07
(b) Write a short note on PSTN. 07
OR
(b) Write a short note on Bluetooth. 07

Q.3 (a) Explain the channel allocation problem and its solution in detail. 07
(b) Enlist the multiple access protocol used in wireless network. Explain any two of
them in detail.
07
OR
Q.3 (a) Explain Link state routing algorithm in detail. 07
(b) Explain Vertical Redundancy Check, Longitudinal Redundancy Check and
Cyclic Redundancy Check with example.
07

Q.4 (a) Give the cause of congestion in the network. Explain leaky bucket algorithm and
token bucket algorithm.
07
(b) Explain SMTP and HTTP protocols in detail. 07
OR
Q.4 (a) Write a short note on UDP. 07
(b) Differentiate between IPv4 and IPv6. 07

Q.5 (a) With the help of a neat diagram explain how ARP and RARP work. 07
(b) Write a short note on Digital Signature. 07
OR

Q.5 (a) Discuss various social issues related to security over Internet. 07
(b) Write a short note on Domain Name System. 07

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