Q. In ________ queuing, packets are first assigned to a priority class. Each class has its own queue.

View solution

Q. 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.

View solution

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

View solution

Q. The _______ bucket algorithm allows idle hosts to accumulate credit for the future in the form of tokens.

View solution

Q. In _________, when a source makes a reservation, it needs to define a flow specification.

View solution

Q. _________ is a class-based QoS model designed for IP.

View solution

Q. In Frame Relay, the user can never exceed the_________.

View solution

Q. 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.

View solution

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

View solution

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

View solution

Q. 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.

View solution

Q. In ATM, the _________ class is divided into two subclasses: real-time (VBR-RT) and non-real-time (VBR-NRT). VBR-RT is designed for those users who need real-time services (such as voice and video transmission) and use compression techniques to create a variable bit rate. VBR-NRT is designed for those users who do not need real-time services but use compression techniques to create a variable bit rate.

View solution

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

View solution

Q. In ATM, the _________ class is a best-effort delivery service that does not guarantee anything.

View solution

Q. The service of closed loop congestion control technique is ..................

View solution

Q. The solution to increase the capacity when congestion occurs is .....................

View solution

Q. When routers are being inundated by packets that they cannot handle, they just throw them away is known as ...................

View solution

Q. Upon receipt of a bad segment, UDP ..............

View solution

Q. When the source host receives the choke packet, then the source ..................

View solution

Q. If the buffer fills and a packet segment is dropped, then dropping all the rest of the segments from that packet, since they will be useless anyway is called ....................

View solution