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Q.

. _______ happens in any system that involves waiting.

A

Congestion

B

Jamming

C

Error

D

none of the above

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MCQ

1.

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

B

priority

C

weighted fair

D

none of the above

Discussion

MCQ

2.

. In Frame Relay, the _____________ defines an average rate in bits per second

A

access rate

B

committed burst size

C

committed information rate

D

excess burst size

Discussion

MCQ

3.

In the ___________ algorithm of TCP, the size of the threshold is dropped to one-half, a multiplicative decrease

A

slow-start

B

congestion avoidance

C

congestion detection

D

none of the above

Discussion

MCQ

4.

. ________ is the variation in delay for packets belonging to the same flow.

A

Reliability

B

Delay

C

Jitter

D

Bandwidth

Discussion

MCQ

5.

In _______ congestion control, mechanisms are used to alleviate congestion after it happens

A

open-loop

B

closed-loop

C

either (a) or (b)

D

neither (a) nor (b)

Discussion

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