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SIXTH SEMESTER B.AJB.Sc. DEGREE EXAMINATION, MARCH 2020
(CUCBCSS—UG)
Computer Science
BCS 6B 14—COMPUTER NETWORKS

(2014 Admissions)

: Three Hours Maximum : 80 Marks

Section A

Answer all questions.
Each question carries 1 mark.

is the protocol suite for the current Internet.

A is a set of rules that governs data communication.

The hamming distance between equal codewords is

ARQ stands for

Which topology is used in Ethernet ?

The protocol data unit for the application layer in the Internet stack is

In the IPv4 addressing format, the number of networks allowed under Class C addresses

is

Checksum is used for
If routing information are automatically updated by routers when changes are made to network

configuration are called

The loss in signal power as light travels down the fiber is called
(10 x 1 = 10 marks)

Section B (Short Answer Questions)

Answer all the questions.
Each question carries 2 marks.

What are the features provided by layering ?
What is the difference between Single bit error and Burst error ?

What are the functions of MAC ? turn over