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Q.

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)

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

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2.

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

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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

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_________ is a characteristic that a flow needs. Lack of it means losing a packet or acknowledgment, which entails retransmission.

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A _________ traffic model has a data rate that does not change.

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constant bit rate

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