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C 20116 (Pages : 2) வி... ௮ ಸ...

SIXTH SEMESTER (CUCBCSS-UG) DEGREE EXAMINATION, MARCH 2022

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Computer Science
BCS 6B 13—COMPUTER NETWORKS
(2017 and 2018 Admissions)
: Three Hours Maximum : 80 Marks
Part A

Answer all questions.
Each question carries 1 mark.

Expand the term OSI.

DTE stands for

In ——————_—— a block of bits is divided into rows and a redundant row of bits is added to the
whole block.

VRC means———————_.

IPv4 address scheme uses———-————_ bits.

Repeater operates in ——————-—— layer of OSI reference model.

protocol provides aconnection-oriented reliable service for sending messages.
In transport layer, a message is normally divided into transmittable

In cryptography ——-————— function takes an arbitrary block of data and returns a fixed size
bit string.
DES means ————-_——_.
(10 x 1=10 marks)
Part B

Answer all questions.
Each question carries 3 marks.

What are the different categories of networks ?
What wireless LAN ?
Explain the functions of Gateways.
What is SNMP ? Explain
What do you mean by hash function ? Give its use.
(5 x 3 = 15 marks)

Turn over

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