Data Communication and Networking Questions

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61.

Which of the following TCP/IP protocol is used for transferring electronic mail messages from one machine to another?

A

FTP

B

SNMP

C

SMTP

D

RPC

E

None of the above

Correct Answer: C

None.

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62.

Which of the following device is used to connect two systems, especially if the systems use different protocols?

A

hub

B

bridge

C

gateway

D

repeater

E

None of the above

Correct Answer: C

None.

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63.

The synchronous modems are more costly than the asynchronous modems because

A

they produce large volume of data

B

they contain clock recovery circuits

C

they transmit the data with stop and start bits.

D

they operate with a larger bandwidth

E

None of the above

Correct Answer: B

None.

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64.

A distributed network configuration in which all data/information pass through a central computer is

A

bus network

B

star network

C

ring network

D

Point-to-point network

E

None of the above

Correct Answer: B

None.

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65.

Which of the following TCP/IP protocol allows an application program on one machine to send a datagram to an application program on another machine?

A

UDP

B

VMTP

C

X.25

D

SMTP

E

None of the above

Correct Answer: A

None.

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66.

A remote batch-processing operation in which data is solely input to a central computer would require a:

A

telegraph line

B

simplex lines

C

mixedband channel

D

All the above

E

None of the above

Correct Answer: B

None.

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67.

ICMP (Internet Control Message Protocol) is

A

a TCP/IP protocol used to dynamically bind a high level IP Address to a low-level physical hardware address

B

a TCP/IP high level protocol for transferring files from one machine to another

C

a protocol used to monitor computers

D

a protocol that handles error and control messages

E

None of the above

Correct Answer: D

None.

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68.

If you get both local and remote echoes, every character you type will appear on the screen

A

once

B

twice

C

three times

D

never

E

None of the above

Correct Answer: B

None.

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69.

What part of 192.168.10.51 is the Network ID, assuming a default subnet mask?

A

192

B

192.168.10

C

0.0.0.5

D

51

E

None of the above

Correct Answer: B

None.

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70.

The slowest transmission speeds are those of

A

twisted-pair wire

B

coaxial cable

C

fiber-optic cable

D

microwaves

Correct Answer: A

None.

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