Data Communication and Networking Questions

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211.

Interconnected networks need communication processors such as switches, routers, hubs, and gateways. Select the best fit for answer:

A

TCP/IP

B

Protocol

C

Open Systems

D

Internetwork processor

Correct Answer: D

None.

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212.

A decrease in magnitude of current, voltage, a power of a signal in transmission between points, is known as

A

Attenuation

B

Amplitude

C

Aloha

D

Carrier

E

None of the above

Correct Answer: A

None.

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213.

The term "remote job entry" relates to

A

batch processing

B

realtime processing

C

transaction processing

D

distributed processing

E

None of the above

Correct Answer: A

None.

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214.

Which of the following performs modulation and demodulation?

A

fiber optic

B

satellite

C

coaxial cable

D

modem

E

None of the above

Correct Answer: D

None.

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215.

Data communications monitors available on the software market include

A

ENVIRON/1

B

TOTAL

C

BPL

D

Telenet

E

None of the above

Correct Answer: A

None.

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216.

Which of the following statement is correct?

A

A spin stabilized satellite used solar cells mounted on a cylinder body that continuously rotates so that 40 a time and it also uses gyroscopic action of a spinning satellite to maintain its orientati

B

A spin stabilized satellite uses solar panels whose cells are continually oriented toward the sun

C

Satellite transponders use lower frequency reception of radiation from earth stations and higher frequency for transmission to earth stations.

D

satellite transponders use a single frequency for reception and transmission from one point on earth to another

E

None of the above

Correct Answer: A

None.

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217.

What is the default subnet mask for a class A network?

A

127.0.0.1

B

255.0.0.0

C

255.255.255.0.0

D

255.255.255.0

E

None of the above

Correct Answer: B

None.

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218.

When using the loopback address, if TCP/IP is installed correctly, when should you receive a response?

A

Immediately

B

Only if the address fails

C

After the next host comes online

D

Within two minutes

E

None of the above

Correct Answer: A

None.

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219.

Which of the following statement is correct?

A

Satellite transponders contain a receiver and transmitter designed to relay microwave transmissions from one point on earth to another.

B

Satellite transponders contain a device that echos the radiation without change from one point on earth to another.

C

Satellite transponder contains devices that transform the message sent from one location on earth to a different code for transmission to another location.

D

Satellite transponders use lower frequency reception of radiation from earth stations and higher frequency for transmission to earth stations

E

None of the above

Correct Answer: A

None.

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220.

The modern enterprise is interconnected internally and externally by the Internet, intranets, and other networks. Select the best fit for answer:

A

Internetworked enterprise

B

Information super highway

C

Business applications of telecommunications

D

Client/Server networks

E

None of the above

Correct Answer: A

None.

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