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Question

Start and stop bits do not contain an "information", but are used in serial communication for"

A
Error detection
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B
Error Correction
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C
Synchronization
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D
Slowing down the communication
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Solution

The correct option is C Synchronization

Start and stop bits do not contain an "information", but are used in serial communication for synchronization.

The stop bit is used to signal the end of a frame. The data is contained in the data bits and the parity bit is an extra bit that is often used to detect transmission errors. Asynchronous serial protocols usually require that information bits be transmitted at regular time intervals.

The start and stop bits are used in asynchronous communication as a means of timing or synchronizing the data characters being transmitted. Without the use of these bits, the sending and receiving systems will not know where one character ends and another begins.

Serial communicationis the process of sending data one bit at a time, sequentially, over a communication channel or computer bus. This is in contrast to parallel communication, where several bits are sent as a whole, on a link with several parallel channels.


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