Data Communication and Networking Questions

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391.

A computer that handles resource sharing and network management in a local area network. Select the best fit for answer:

A

Network Server

B

Virtual Private Network

C

Network operating system

D

OSI

E

Three

Correct Answer: A

None.

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392.

Repeaters are often used on an 802.3 network to help strengthen the signals being transmitted. As with the length of segments and the number of segments, a limit exists as to how many repeaters can be used between any two nodes. What is the maximum number of repeaters that can be used?

A

Five

B

Two

C

Four

D

Six

E

Three

Correct Answer: C

None.

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393.

How much power (roughly) a light-emitting diode can couple into an optical fiber?

A

100 microwatts

B

440 microwatts

C

100 picowatts

D

10 milliwatts

E

None of the above

Correct Answer: A

None.

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394.

A modem that is attached to the telephone system by jamming the phone's handset into two flexible receptacles in the coupler?

A

gateway

B

bridge

C

acoustic coupler

D

time-division multiplexer

E

None of the above

Correct Answer: C

None.

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395.

With telecommunications and a personal computer you can

A

"download" free public domain programs

B

send letters to be printed and delivered by the post office

C

order goods at a substantial discount

D

All of the above

E

None of the above

Correct Answer: D

None.

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396.

Which of the following statement is correct?

A

Teleprinters are used for printing at remote locations, not for input.

B

Teleprinters are same as teletypes

C

Teleprinters are same as x400

D

Teleprinters have a printer for output and keyboard for input

E

None of the above

Correct Answer: D

None.

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397.

What does 224 translate to in binary?

A

11110000

B

11110

C

1111

D

11100000

E

None of the above

Correct Answer: D

None.

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398.

What can cause a problem with communication with a client by name but not by IP address?

A

The IP address

B

Static files such as an LMHOSTS file or a DNS database

C

Subnet mask

D

The default gateway

E

None of the above

Correct Answer: B

None.

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399.

Layer one of the OSI model is

A

physical layer

B

link layer

C

transport layer

D

network layer

E

None of the above

Correct Answer: A

None.

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400.

What is the term used to describe addresses available on a DHCP server?

A

Pools

B

Scopes

C

Ranges

D

Notes

E

None of the above

Correct Answer: B

None.

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