Data Communication and Networking Questions

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251.

Devices on one network can communicate with devices on another network via a

A

file server

B

utility server

C

printer server

D

gateway

E

None of the above

Correct Answer: D

None.

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252.

After coding a document into a digital signal, it can be sent by telephone, telex or satellite to the receiver where the signal is decoded and an exact copy of the original document is made. What is it called?

A

Telex

B

Word processor

C

Facsimile

D

Electronic mail

E

None of the above

Correct Answer: C

None.

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253.

Which file transfer protocol uses UDP?

A

NFS

B

TELNET

C

TFTP

D

FTP

E

None of the above

Correct Answer: C

None.

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254.

You are working with a class C network. You are required to configure it for five subnets, each of which will support 25 nodes. What subnet should you use?

A

255.255.255.0

B

255.255.255.224

C

255.255.255.240

D

255.255.255.248

E

255.255.255.252

Correct Answer: B

None.

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255.

A network designer wants to connect 5 routers as point-to-point simplex line. Then the total number of lines required would be

A

5

B

10

C

20

D

32

E

None of the above

Correct Answer: B

None.

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256.

Which of the following medium access control technique is used for bus/tree?

A

token ring

B

token bus

C

CSMA

D

MAC

E

None of the above

Correct Answer: B

None.

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257.

A distributed data processing configuration in which all activities must pass through a centrally located computer is called a:

A

ring network

B

spider network

C

hierarchical network

D

data control network

E

None of the above

Correct Answer: B

None.

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258.

The size or magnitude of a voltage or current waveform is

A

Amplitude

B

Aloha

C

Angle Modulation

D

Attenuation

E

None of the above

Correct Answer: A

None.

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259.

Which of the following network access standard is used for connecting stations to a circuit-switched network?

A

X.3

B

X.21

C

X.25

D

X.75

E

None of the above

Correct Answer: B

None.

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260.

Which of the following is not a transmission medium?

A

telephone lines

B

coaxial cable

C

modem

D

microwave systems

E

satellite systems

Correct Answer: C

None.

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