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Q. |
In asynchronous serial communication the physical layer provides |
A. | start and stop signalling |
B. | flow control |
C. | both start & stop signalling and flow control |
D. | only start signalling |
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. |
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