Question

The term synchronous means ____________

(a) The output changes state only when any of the input is triggered

(b) The output changes state only when the clock input is triggered

(c) The output changes state only when the input is reversed

(d) The output changes state only when the input follows it

I have been asked this question at a job interview.

My query is from Master-Slave Flip-Flops in chapter Flip-Flops of Digital Circuits

Answer 1

Right answer is (b) The output changes state only when the clock input is triggered

The explanation is: The term synchronous means the output changes state only when the clock input is triggered. That is, changes in the output occur in synchronization with the clock.