Practice Quiz in Congestion Control and Quality of Service Part 3

Question 21. 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.

Question 22. In Frame Relay, the user can never exceed the_________.

Question 23. In the ______ bucket algorithm, bursty chunks are stored in the bucket and sent out at an average rate.

Question 24. In ATM, the _________ class delivers cells at a minimum rate. If more network capacity is available, this minimum rate can be exceeded.

Question 25. In Frame Relay, the ___________ is the maximum number of bits in excess of Bc that a user can send during a predefined time.

Question 26. In a network, when the load is below the capacity of the network, the throughput ______________.

Question 27. In ATM, the _________ class is designed for customers who need real-time audio or video services. The service is similar to that provided by a dedicated line such as a T line.

Question 28. In _________, we try to create an appropriate environment for the traffic.

Question 29. In _______ congestion control, mechanisms are used to alleviate congestion after it happens.

Question 30. In the ________ traffic model, the rate of the data flow changes in time, with the changes smooth instead of sudden and sharp.