Flip-Flops and Latches: Presentation Review Quiz

Which input(s) does a D Flip-Flop have according to the diagram?

• D and Q

• D and CLK

• Q and Q̅

• CLK and Q

What does the output Q of a D flip-flop do when the clock (CLK) signal rises and the input D is 1?

• Q becomes 0

• Q becomes 1

• Q remains unchanged

• Q toggles

What is the output Q of a J/K flip-flop when J=1, K=1, and a rising edge of the clock occurs?

• Q toggles

• Q is set to 1

• Q is cleared to 0

• Q remains unchanged

What is the main purpose of asynchronous inputs (Preset & Clear) in a flip-flop circuit?

• To synchronize the outputs with the clock signal

• To override the clock/data inputs and force the outputs to a predefined state

• To increase the speed of the circuit

• To reduce power consumption

What does "EN" stand for in the context of a Transparent D-Latch?

• Enable

• End

• Enter

• Energy

Given the truth table for a Transparent D-Latch, which of the following statements is correct when EN = 1 and D = 1?

• Q = 0, Q̅ = 1

• Q = 1, Q̅ = 0

• Q = Q₀, Q̅ = Q̅₀

• Q = X, Q̅ = X

When the EN (Enable) signal is HIGH in a Transparent D-Latch, what happens to the output Q?

• Q follows D.

• Q is always zero.

• Q is always one.

• Q toggles randomly.

If the EN signal transitions from HIGH to LOW while D is HIGH, what will happen to Q in a Transparent D-Latch?

• Q will remain HIGH until EN goes HIGH again.

• Q will immediately go LOW.

• Q will toggle continuously.

• Q will follow D regardless of EN.

Which input is edge sensitive in a D flip-flop?

• EN input

• CLOCK input

• Data input

• Reset input

According to the function table, what happens to the output Q when Enable is LOW, regardless of the value of D?

• Q becomes HIGH

• Q becomes LOW

• Q retains its previous value Q₀

• Q becomes Don't Care