Download GTU BE/B.Tech 2019 Winter 6th Sem New 2161704 Analog And Digital Communication Question Paper

Download GTU (Gujarat Technological University) BE/BTech (Bachelor of Engineering / Bachelor of Technology) 2019 Winter 6th Sem New 2161704 Analog And Digital Communication Previous Question Paper

1
Seat No.: ________ Enrolment No.___________

GUJARAT TECHNOLOGICAL UNIVERSITY

BE - SEMESTER ? VI (New) EXAMINATION ? WINTER 2019
Subject Code: 2161704 Date: 09/12/2019

Subject Name: Analog and Digital communication

Time: 02:30 PM TO 05:00 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 RS 232 standard with RS 422 03
(b) Define: (a) Metropolitan Area (b) Noise (c) Pulse code modulation (d) Cyclic
Redundancy check


(d)Cyclic cyclic Red
04
(c) Describe V-Series modems V.34 and V.90.

07
Q.2 (a) Compare Wideband FM with narrowband FM. 03
(b) Compare synchronous and Asynchronous Data format. 04
(c) Explain phase shift keying and application of it in detail 07
OR
(c) Discuss the troubleshooting of Fiber optic 07
Q.3 (a) Explain Null Modem 03
(b) How does return to zero and non-return to zero binary data forms differ? 04
(c) Explain SDLC/ HDLC protocol with their frame format and address and control
field
07
OR
Q.3 (a) Give difference between Frequency Modulation and Phase Modulation 03
(b) Explain Thermal Noise. 04
(c)
Describe system network architecture and basic SNA network.
07
Q.4 (a) Describe Data Topologies. 03
(b) Explain Pulse width Modulation. 04
(c) Write a short-note on data correction using longitudinal redundancy check and
vertical redundancy check.
07
OR
Q.4 (a) Describe Power relation in AM wave. 03
(b) Explain Time division multiplexing. 04
(c) Explain Pulse code Modulation in details. 07
Q.5 (a) Explain Noise figure. 03
(b) What are the main transmit and receive block of a FSK modulator? 04
(c) Which are the main purpose of an Instrumentation and Control system in an
Industrial environment?
07
OR

Q.5 (a) Explain Shot Noise in details 07
(b) Write a note on optical fiber cable and how it useful in industrial communication. 07
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