Question # 1

Data communication requires only a :

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Sender

Receiver

Transmission Medium

All of the above

A connection for similar networks.

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satellite

gateway

bridge

fax

In______________communication modes the data communication can take place in only one direction

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Simplex

Half-duplex

Full-deplex

None

BIT stands for:

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Binary integer

Binary Digit

Binary Interval

None of the above

Which of the following topologies is passive?

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Star topology

Ring topology

Bus topology

Hybrid topology

What layer of the OSI model does data compression?

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Network

Data Link

Presentation

Physical

The charts, graphs and pictures are examples of:

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Image

Audio

Video

Text

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

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bus

WAN

gateway

LAN

A device that receives messages is called:

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Transmitter

Receiver

Source

Sender

Centralized processing but with access from terminals is known as.

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DDP

a ring network

telecommuting

a teleprocessing system

The media Access Control sublayer resides in which OSI layer?

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Physical

Data Link

Network

Transport

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

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Protocol

Medium

Single

All

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

The electromagnetic or light waves representing data are called:

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Reraction

Information

Signals

None

A computer based system in which a telephone message is recorded in digital form and then forwarded to others is

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a teleconferencing

voice mail

a bulletin board

telecommuting

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

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