Discussion
______ is used to optimize the use of the channel capacity available in a network, to minimize the transmission latency and to increase robustness of communication.
Answer: D
The technique is packet switching.
Packet switching breaks data into small packets that share the links with other traffic. Because no capacity is reserved and left idle, the channel is used efficiently; small packets reduce delay; and since each packet can take any available route, communication survives the failure of a link.
Circuit switching reserves a fixed path for the whole call, wasting capacity when it is idle. Message switching stores and forwards whole messages, adding delay, and 'linear switching' is not a standard technique.
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