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Q.

Which of the following allows devices on one network to communicate with devices on another network?

A

multiplexer

B

gateway

C

t-switch

D

modern

E

None of the above

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MCQ

1.

Switching at the network layer in the Internet uses the datagram approach to:

A

Message switching

B

Circuit switching

C

IP switching

D

Packet switching

Discussion

MCQ

2.

What is the number of separate protocol layers at the serial interface gateway specified by the X.25 standard?

A

4

B

2

C

6

D

3

E

None of the above

Discussion

MCQ

3.

Which of the following does not allow multiple users or devices to share one communications line?

A

doubleplexer

B

multipplexer

C

concentrator

D

controller

E

None of the above

Discussion

MCQ

4.

When a host knows its physical address but not its IP address, it can use _____.

A

RARP

B

ARP

C

IGMP

D

ICMP

E

None of the above

Discussion

MCQ

5.

HDLC (High-level Data Link Control) is

A

a method of determining which device has access to the transmission medium at any time

B

a method access control technique for multiple-access transmission media

C

a very common bit-oriented data link protocol issued by ISO.

D

network access standard for connecting stations to a circuit-switched network

E

None of the above

Discussion

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