Data Communication and Computer Network Basics Questions

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21.

Data flow between two devices can occur in a _______ way.

A

simplex

B

half-duplex

C

full-duplex

D

all of the above

Correct Answer: D

None.

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22.

In a ______ connection, two and only two devices are connected by a dedicated link.

A

multipoint

B

point-to-point

C

(a) and (b)

D

none of the above

Correct Answer: B

None.

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23.

In a ________ connection, three or more devices share a link.

A

multipoint

B

point-to-point

C

(a) and (b)

D

none of the above

Correct Answer: A

None.

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24.

______ refers to the physical or logical arrangement of a network.

A

Data flow

B

Mode of operation

C

Topology

D

None of the above

Correct Answer: C

None.

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25.

Devices may be arranged in a _____ topology

A

mesh

B

ring

C

bus

D

all of the above

Correct Answer: D

None.

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26.

A _______ is a data communication system within a building, plant, or campus, or between nearby buildings.

A

MAN

B

LAN

C

WAN

D

none of the above

Correct Answer: B

None.

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27.

A ______ is a data communication system spanning states, countries, or the whole world.

A

MAN

B

LAN

C

WAN

D

none of the above

Correct Answer: C

None.

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28.

________ is a collection of many separate networks

A

A WAN

B

An internet

C

a LAN

D

None of the above

Correct Answer: B

None.

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29.

There are ______________ Internet service providers.

A

local

B

regional

C

national and international

D

all of the above

Correct Answer: D

None.

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30.

. A ________ is a set of rules that governs data communication.

A

forum

B

protocol

C

standard

D

none of the above

Correct Answer: B

None.

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