Data Communication and Computer Network Basics Questions

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1.

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

A

Protocol

B

Medium

C

Signal

D

All the above

Correct Answer: B

None.

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2.

The information to be communicated in a data communications system is the _______.

A

Medium

B

Protocol

C

Message

D

Transmission

Correct Answer: C

None.

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3.

Frequency of failure and network recovery time after a failure are measures of the _______ of a network.

A

Performance

B

Reliability

C

Security

D

Feasibility

Correct Answer: B

None.

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4.

An unauthorized user is a network _______ issue.

A

Performance

B

Reliability

C

Security

D

All the above

Correct Answer: C

None.

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5.

Which topology requires a central controller or hub?

A

Mesh

B

Star

C

Bus

D

Ring

Correct Answer: B

None.

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6.

Which topology requires a multipoint connection?

A

Mesh

B

Bus

C

Ring

D

Star

Correct Answer: B

None.

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7.

Communication between a computer and a keyboard involves ______________ transmission.

A

simplex

B

half-duplex

C

full-duplex

D

automatic

Correct Answer: A

None.

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8.

A television broadcast is an example of _______ transmission.

A

simplex

B

half-duplex

C

full-duplex

D

automatic

Correct Answer: A

None.

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9.

_______ connection provides a dedicated link between two devices.

A

point-to-point

B

multipoint

C

primary

D

secondary

Correct Answer: A

None.

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10.

. In a _______ connection, more than two devices can share a single link.

A

point-to-point

B

multipoint

C

primary

D

secondary

Correct Answer: B

None.

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