To maintain synchronization in synchronous transmission __________(a) long strings of 1s and 0s must not be allowed(b) transmission must stop periodically(c) clock circuits must be precisely adjusted(d) channel must be noise freeThis question was addressed to me during a job interview.The query is from Variation Method in section Angle Modulation of Analog Communications

To maintain synchronization in synchronous transmission __________(a)

1.	To maintain synchronization in synchronous transmission __________(a) long strings of 1s and 0s must not be allowed(b) transmission must stop periodically(c) clock circuits must be precisely adjusted(d) channel must be noise freeThis question was addressed to me during a job interview.The query is from Variation Method in section Angle Modulation of Analog Communications
Answer» Right answer is (a) long strings of 1s and 0s must not be ALLOWED Easy explanation: In synchronous transmission both sender and receiver access the data according to same CLOCK. It has no start and stop bits and THUS it has more efficient. However, it is more expensive than asynchronous transmission and has HIGHLY complex CIRCUIT. To maintain synchronization long strings of 1s and 0s are not allowed.

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