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ECAT Computer Science Chapter 6 Data Communication Online Test MCQs With Answers

Question # 1

ASCII 8 bit code can represent maximum

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256 character

128 character

64 character

65536 character

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Question # 2

The transfer if encoded information from one location to another by a communication channel is called

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data processing

data distribution

data communication

data encryption

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Question # 3

The media Access Control sublayer resides in which OSI layer?

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Physical

Data Link

Network

Transport

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Question # 4

The _______ is the physical path over which a message travels.

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Protocol

Medium

Single

All

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Question # 5

Now-a-day computers all over the world can talk to each other. Which is one of the special accessories essential for this purpose?

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Fax card

Modem card

Network Adapter card

DVD

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Question # 6

The number of times a wave repeats during a specific time interval is called

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Amplitude

Oscillation

Frequency

Pulses

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Question # 7

Light sound and radio waves are examples of :

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Analog Signals

Digital Signals

Simple Signals

None

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Question # 8

A network of geographically distant computers and terminals is called a.

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bus

WAN

gateway

LAN

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Question # 9

The charts, graphs and pictures are examples of:

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Image

Audio

Video

Text

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Question # 10

Which of the following statements best describes a star topology?

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Needs significantly less cabling than other topologies

Breaks in a single cable segment takes down entire network

More difficult to reconfigure than other topologies

Centralized monitoring and management

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Question # 11

The arrangement in which most of the processing is done by the server.

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simplex transmission

electronic data interchange

file server

client/server

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