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

Seat No.: ________
Enrolment No.___________
GUJARAT TECHNOLOGICAL UNIVERSITY
BE- SEMESTER?VI (NEW) EXAMINATION ? WINTER 2020
Subject Code:2161103 Date:27/01/2021
Subject Name:Telecommunication Switching systems and Networks
Time:02:00 PM TO 04:00 PM Total Marks: 56
Instructions:
1. Attempt any FOUR questions out of EIGHT questions.

2. Make suitable assumptions wherever necessary.

3. Figures to the right indicate full marks.
Q.1
(a) Explain Birth-Death process.
03

(b) Describe the terms of GOS (Grade of Service) and blocking probability.
04

(c) Define the following terms. (i) Trunks (ii) Side tone (iii) ISDN
07
(iv) Grade of service (v) DHCA (vi) Erlang (vii) centum call second.


Q.2
(a) Compare Strawger switching system and crossbar switching system.
03

(b) Compare Ring and Star Topology.
04

(c) Explain different signaling techniques in telecommunication network.
07




Q.3
(a) Compare circuit switching and Packet switching.
03

(b) Explain Concept of Cellular Mobile Telephony.
04

(c) Explain Enhanced service of stored program control.
07




Q.4
(a) Discuss Markov Process in brief.
03

(b) Compare: Micro-programmed control vs. Hard-wired control.
04

(c) Explain basic Time division time switching in detail with necessary
07
diagram.
Q.5
(a) Compare Analog and Digital Telecommunication.
03

(b) Explain the steps involved in conference calling among 3 users with
04
block diagram.

(c) Describe Distributed Store Programmed Control switching with Level-
07
1, Level-2 and Level-3 processing.



Q.6
(a) Explain Rotary Switch in Brief.
03

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

(c) Explain Time-Space(TS) and Space Time (TS) combinational
07
switching system.
Q.7
(a) Briefly describe Common Channel Signaling.
03

(b) Explain the load sharing mode of centralized SPC.
04

(c) Explain (1)Space Diversity (2) Frequency Diversity (3)Polarization
07
Diversity.



Q.8
(a) Discuss SS7 architecture in brief.
03
(b) Derive the blocking probability for Lost Call Cleared [LCC] system for
04
infinite sources.
(c) Explain ISDN.
07
****************
1

---