Q. In asynchronous serial communication the physical layer provides
✅ Correct Answer: (C)
both start & stop signalling and flow control
Explanation: in asynchronous serial communication, the communication is not synchronized by clock signal. instead of a start and stop signaling and flow control method is followed. unlike asynchronous serial communication, in synchronous serial communication a clock signal is used for communication, so the start and stop method is not really required.