Why is packet switching more efficient than circuit switching?
a. In packet switching, packets are synchronized according to a timing mechanism in the switch.
b. In packet switching, two communicating nodes establish a channel first, then begin transmitting, thus ensuring a reliable connection and eliminating the need to retransmit.
c. In packet switching, small pieces of data are sent to an intermediate node and reassembled before being transmitted, en masse, to the destination node.
d. In packet switching, packets can take the quickest route between nodes and arrive independently of when other packets in their data stream arrive.
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