(ii) How is packet switching different from circuit switching?
Answer
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Circuit Switching |
Packet switching |
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In circuit switching, before a communication starts, a dedicated path is identified between the sender and the receiver |
No dedicated path is identified before , and each data unit knows only the final receiver’s address |
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Physical connection is established between sender and receiver |
No physical connection is established between sender and receiver |
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It does NOT follows store and forward concept to transmit data |
It follows store and forward concept to transmit data |
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All packets follow the same path established during the connection |
Different packets of the same message may take different routes depending on availability. |