Q. Explain the working of CSMA/CA and its two implementation.
Answer =
With CSMA/CA, a device listens for an opportunity to transmit its data, i.e., CARRIER SENSE. If the carrier is free, the sending device does not immediately transmit data. Rather, it first transmits a signal notifying other devices (i.e., a warning packet) that it is transmitting for so much time before actually sending the data. The other device refrains from transmitting data for the specified time limit. This means data packets will never collide, although warning packets might.
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