Kerala PSC Previous Years Question Paper & Answer
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Below are the scanned copy of Kerala Public Service Commission (KPSC) Question Paper with answer keys of Exam Name ' Instructor Gr I (Engineering Colleges) in Information Technology & Computer Engineering' And exam conducted in the year 2022. And Question paper code was '091/2022'. Medium of question paper was in Malayalam or English . Booklet Alphacode was 'A'. Answer keys are given at the bottom, but we suggest you to try answering the questions yourself and compare the key along wih to check your performance. Because we would like you to do and practice by yourself.
091/22
. Suppose there are ten signals, each requiring 4,000 Hz, are multiplexed onto a single
channel using FDM. What is the minimum bandwidth required for the multiplexed
channel ? Assume that the guard bands are 400 Hz wide.
A) 4,000 Hz
B) 40,000 Hz
C) 42,600 Hz
D) 43,600 Hz
. What is the size of ARP request and ARP reply packet ?
A) 18 bytes
B) 20 bytes
C) 28 bytes
D) 53 bytes
. Which of the following specifies WLAN security standard ?
A) IEEE 802.11
B) IEEE 802.11 g
C) IEEE 802.11 i
D) IEEE 802.11 b
. Which of the following switching services are appropriate for setting up :
1. a voice communication, and
Il. internet service respectively ?
(1) Packet Switching, (Il) Message Switching
(!) Packet Switching, (Il) Circuit Switching
(1) Circuit Switching, (Il) Packet Switching
(1) Circuit Switching, (Il) Message Switching
. In cryptography, the following uses transposition ciphers and the keyword is LAYER.
Encrypt the following message. (Spaces are omitted during encryption) WELCOME TO
NETWORK SECURITY !
A) WMEKREETSILTWETCOOCYONRU !
8) EETSICOOCYWMEKRONRU!ILTWET
©) EETSIWMEKRONRU!ILTWETCOOCY
0) ONRU!COOCYLTWETEETSIWMEKR
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