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MCQ

Q.

In ________ congestion control, policies are applied to prevent congestion before it happens

A

open-loop

B

closed-loop

C

either (a) or (b)

D

neither (a) nor (b)

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MCQ

1.

In Frame Relay, a ___________ is the maximum number of bits in a predefined time that the network is committed to transfer without discarding any frame or setting the DE bit.

A

access rate

B

committed burst size

C

committed information rate

D

excess burst size

Discussion

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2.

In the ______ traffic model, the data rate changes suddenly in a very short time.

A

constant bit rate

B

variable bit rate

C

bursty

D

none of the above

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3.

In ________ we try to avoid traffic congestion.

A

congestion control

B

quality of service

C

either (a) or (b)

D

both (a) and (b)

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4.

In _________ queuing, the packets are assigned to different classes and admitted to different queues. The queues, however, are weighted based on the priority of the queues; higher priority means a higher weight. The system processes packets in each queue in a round-robin fashion with the number of packets selected from each queue based on the corresponding weight

A

FIFO

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priority

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weighted fair

D

none of the above

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5.

In a network, when the load is much less than the capacity of the network, the delay is _________

A

at a maximum

B

at a minimum

C

constant

D

none of the above

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