Download GTU B.Tech 2020 Summer 6th Sem 2161103 Telecommunication Switching Systems And Networks Question Paper

Download GTU (Gujarat Technological University Ahmedabad) B.Tech/BE (Bachelor of Technology/ Bachelor of Engineering) 2020 Summer 6th Sem 2161103 Telecommunication Switching Systems And Networks Previous Question Paper

Seat No.: ________
Enrolment No.___________
GUJARAT TECHNOLOGICAL UNIVERSITY
BE - SEMESTER? VI EXAMINATION ? SUMMER 2020
Subject Code: 2161103 Date:04/11/2020
Subject Name: TELECOMMUNICATION SWITCHING SYSTEMS AND
NETWORKS
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.


MARKS
Q.1 (a) Define the following terms.
03
(i) Grade of Service (ii) Trunks line (ii) Erlang

(b) Differentiate between Manual Switching & Automatic Switching.
04
Switching

(c) Describe Birth-Death process with the help of state transitions in
07
contest of telephone traffic.


Q.2 (a) Compare micro-programmed control and hard wired control.
03

(b) Draw and explain simplex and half-duplex telephone circuits with
04
necessary equations.

(c) Explain Enhanced Services of Electronic Space Division Switching.
07


OR


(c) Explain Three Stage Network in detail.
07
Q.3 (a) Explain BRI and PRI in detail.
03

(b) Explain 3?3 and 6?6 crossbar switching.
04

(c) Explain Signaling Techniques used in Telephone Networks.
07


OR

Q.3 (a) Compare Inchannel and Common Channel Signaling
03

(b) Draw and explain Working of EPABX in brief.
04

(c) Explain Time Multiplexed Space Switching.
07
Q.4 (a) Draw any four Signaling tones in automatic exchange.
03

(b) Explain Subscriber Loop Systems.
04

(c) Explain Store and Forward Data Switching Architecture.
07

OR

Q.4 (a) What do you mean by Blocking Probability?
03

(b) Explain Stored Program Control in brief.
04

(c) Explain Time Multiplexed Time Switching.
07
Q.5 (a) Explain Bit stuffing related to data Link Layer.
03

(b) Explain Input controlled time division space switching with necessary
04
diagram.

(c) Explain ISDN in detail.
07


OR
Q.5 (a) Explain Synchronous duplex mode of Dual processor with necessary
03
diagram.
(b) Differentiate between Circuit switching & Packet Switching.
04
(c) Explain OSI Model in detail.
07

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