Online Test

Question # 1

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

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Single

Double

Protocol

Medium

Imaging used what devices to input data?

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scanner

barcode reader

icon

tablet

Assigning more sectors to outer disk tracks is called.

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zone recording

randomizing

data transfer

sectoring

If electrical power supply to a computer system is inadvertently disrupted ,the serious damage would occur to

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CPU

disk

CRT

printer

Which input device is often attached to laptop computers.

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trackball

inscriber

graphics display

wand reader

Microwave and Communication Satellite are example of

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Guided

Un-guided

Simplex

Router

Voice input devices convert voice input to.

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digital code

OCR-A

bar codes

optical marks

Which of the following cable is comprised of two separate insulated copper wires that are twisted?

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Fiber optics

Twisted pair wire

coax

Submarine

Data us transmitted block by block in

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Asynchronous mode

Synchronous mode

Communication mode

Satellite mode

The mechanism for reading or writing data in a disk is called

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track

rorational delay

access arm

seek time

A magnetized spot represents.

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cpi

MB

0 bit

1 bit

Abother word for printer

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monochrome

microfiche `

pixel

cursos

Which of the following does not support I/O devices

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OCR

joystick

ALU

speaker

Personal computer users may wish to increase their hard disk storage capacity with.

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higher density

DAT

read only media

removable hard disk cartridge

In a computer system, which of the following has largest number of mechanical components and thus most unreliable.

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magnetic tape

magnetic drum

floppy disk

printer

A digital computer system consists of a central processing unit interfaced with

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input devices

auxiliary storage

output devices

all of above

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