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Exam 9: Wan Technology and Protocols

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Question 21

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Priorities cannot be used with packet switching.

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Question 22

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The function of the ________ is to provide a transparent signal path between any pair of attached devices.

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Question 23

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A ________ is a general purpose computer running specialized software that turns it into a smart phone switch.These cost significantly less than traditional circuit switches and can provide more functionality.

Analog data must be converted to digital before transmission for packet switching.

Circuit switching connections ________.

Each packet contains some portion of the user data plus control information needed for proper functioning of the network.

Flexibility,resource sharing,robustness,and responsiveness are all advantages of ________ switching.

Dynamic use of bandwidth is utilized with ________.

The ________ level deals with the physical interface between an attached station and the link that attaches that station to the packet switching node.

Communication via circuit switching involves three phases: circuit establishment,data transfer and ________.

A ________ switch is one in which the signal paths are physically separate from one another.Each connection requires the establishment of a physical path through the switch that is dedicated solely to the transfer of signals between the two endpoints.

________ switching involves the partitioning of a lower speed bit stream into pieces that share a higher speed stream with other bit streams.The individual pieces are manipulated by control logic to route data from input to output.

The term ________ refers to the logical connection between two stations through the network.

Node-node links are usually multiplexed using either frequency division multiplexing or time division multiplexing.

In the ________ approach in packet switching each packet is treated independently with no reference to packets that have gone before.

With ________ a dedicated path is established between two stations for communication.

Elaborate algorithms are used to cope with the time delay and overhead penalties of network operation in a packet switching network.

Circuit switching and packet switching are traditional approaches to wide area network design.

Circuit switching was developed to handle ________ traffic.

The ________ element represents the functions and hardware needed to connect digital devices such as data processing devices and digital telephones to the network.