Data Communication and Networking Questions

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431.

Which utility is useful for troubleshooting NetBIOS name resolution problems?

A

NBTSTAT

B

Netstat

C

PING

D

Hostname

E

None of the above

Correct Answer: A

None.

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432.

The EIA-232 interface has _____ pins.

A

20

B

24

C

25

D

30

E

None of the above

Correct Answer: C

None.

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433.

In OSI model, which of the following layer transforms information from machine format into that understandable by user

A

application

B

presentation

C

session

D

physical

E

None of the above

Correct Answer: B

None.

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434.

The channel in the data communication model can be

A

postal mail service

B

telephone lines

C

radio signals

D

All of the above

E

None of the above

Correct Answer: D

None.

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435.

Which of the following is an important characteristic of LAN?

A

application independent interfaces

B

unlimited expansion

C

low cost access for low bandwidth channels

D

parallel transmission

E

None of the above

Correct Answer: A

None.

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436.

Which of the following is a wrong example of network layer:

A

Internet Protocol (IP) ARPANET

B

X. 25 Packet Level Protocol (PLP) - ISO

C

Source routing and Domain naming - Usenet

D

X.25 level 2 - ISO

E

None of the above

Correct Answer: D

None.

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437.

A 2000-character text file has to be transmitted by using a 1,200 baud modem. Can you tell how long will it take?

A

2 seconds

B

20 seconds

C

120 seconds

D

12 seconds

E

None of the above

Correct Answer: B

None.

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438.

Telecommunications networks come in a wide range of speed and capacity capabilities. Select the best fit for answer:

A

Bandwidth alternatives

B

Switching alternating

C

Inter organizational networks

D

Extranets

E

None of the above

Correct Answer: A

None.

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439.

Which of the following statements is correct?

A

characteristic of the hub architecture of ARC-net is alternative routing.

B

characteristic of LAN is unlimited expansion

C

characteristic of LAN is low cost access for low bandwidth channels

D

characteristic of the hub architecture of ARC-net is directionalized transmission

E

None of the above

Correct Answer: D

None.

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440.

A modem is connected in between a telephone line and a

A

network

B

computer

C

communication adapter

D

serial port

E

None of the above

Correct Answer: C

None.

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