B.TechSemester 52022-23Electronics SwitchingKEC055

Electronics Switching (KEC055) - AKTU Question Paper 2022-23

B.Tech · Semester 5 · Free PDF Download

This is the official AKTU Electronics Switching Previous Year Question Paper for B.Tech Semester 5, academic session 2022-23. Published by Dr. A.P.J. Abdul Kalam Technical University (AKTU/UPTU), Lucknow. Free PDF download — no login required.

Course:B.Tech

Semester:Semester 5

Session:2022-23

University:AKTU / UPTU

Rate this paper

Questions Asked in 2022-23

Electronics Switching (KEC055) — complete question paper

Section AAttempt all questions in brief. 2x10 = 20

a
Enlist the component of telecommunication networks
b
Explain the need of register-translator senders
c
DiscussCombinational switching systems advantages over sing le stage switching systems
d
Explain the principle of Time division switching
e
Define the term GOS in Telecommunication Engineering
f
Compare loss system and delay system with appropriate example
g
Enlist different types of signaling
h
Define the term Reliability and Availability of Switching Systems. (i) Describe Statistical Multiplexing. (j) Discuss X.25 Protocol in brief

Section BAttempt any three of the following: 10x3 = 30

a
Differentiate between Circuit switching and Packet switchin g
b
Demonstrate the concept of analog time division switching & digital time division switching
c
Analyze the different terms related to Network traffic load . And find out the load offered to the network by the subscriber and the average s ubscriber traffic, when over a 20-minute observation interval, 40 subscriber initi ate calls. Total duration of the calls is 4800 seconds
d
Classify the various signaling techniques used in telecommu nication. List the purpose and features of SS7
e
Explain the layered mechanism of Transmission Control Proto col/Internet Protocol (TCP/IP)

Section CAttempt any one part of the following: 10x1 = 10

a
Describe a general Trunking sy stem with neat diagram. Also discuss electronic switching networks
b
Appraise the term switching system. With the help of diagra m explain various elements of switching system
a
Describe the concept of autom atic switching system. Also explain space division and time division switching
b
Evaluate the Implementation complexity of 3048 channel TST switch with 18 TDM links and 138 channels. Let the time slot of space switch is 25
a
Explain birth-death process. During a busy hour 1400 calls w e r e m a d e t o t h e group of trunks and 7 calls were lost. The average call duratio n was 2 minutes. Analyze traffic offere d, traffic carried, traffic lost, GOS, to tal duration for periods of congestion
b
Discussthe equation of Grade of service and blocking probab ility of lost call cleared service (LCC)
a
Describe the concept of reliability and availability condit ions of processors in telecommunication exchange. Given that MTBF (Mean Time Between Failure) = 1000 Hrs and MTTR (Mean Time to Repair) =5Hrs, calculate the un availability for single and dual processor system
b
Demonstrate the concept of c entralized SPC and distributed SPC
a
Describe Asynchronous Transfe r Mode (ATM) cell and ATM Service Categories
b
Explain Banyan network switc h. Also explain, why cell delay variation due to network is minimum in ATM

Question text is extracted from the official AKTU question paper PDF above. Hindi translations are omitted — every question is printed in English in the original paper. Last verified: 2026-08-23.