Question # 1

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

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bus

WAN

gateway

LAN

When all hardware, software, storage, and processing is housed in one location it is called.

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a time-sharing system

centralized processing

a DDP system

a host computer system

The charts, graphs and pictures are examples of:

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Image

Audio

Video

Text

Who invented the modem?

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IBM

DEC

AT&T information System, USA

Apple computers Inc

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

The music and speech represent the:

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Image Data

Audio Data

Video Data

Text Data

The electromagnetic or light waves representing data are called:

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Reraction

Information

Signals

None

The information that is to be transferred from one location to another is called:

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Signals

Data

Sender

Message

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

Which of the following access methods listens to the cable for network traffic before sending data?

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Token passing

Polliing

CSMA/CA

CSMA/CD

Terminal is a.

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device to give power supply to computer

point at which data enter or leaves the computer

the last instruction in a program

any input/output device

Software to persue the Internet.

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gateway

EFT

browser

teleconferencing

Which of the following topologies is passive?

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Star topology

Ring topology

Bus topology

Hybrid topology

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

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Amplitude

Oscillation

Frequency

Pulses

Communication between a computer and a keyboard involves

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Simplex

half-duplex

Full-duplex

automatic

___________ code systems can represent upto 65536 symbols

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ASCII-7

EBCDIC

ASCII-8

Unicode

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

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