Question: What is the output state of a D flip-flop when the clock signal transitions from low to high?

Options:

1. It holds the previous state
2. It resets to zero
3. It takes the value of the D input
4. It toggles its state

Correct Answer: It takes the value of the D input

Solution:

A D flip-flop captures the value of the D input on the rising edge of the clock signal and holds that value until the next clock transition.