DE practice test

Which statement about asynchronous counters is true?

• Asynchronous counters are faster than synchronous counters.

• Asynchronous counters require more power than synchronous counters.

• All flip-flops in an asynchronous counter are clocked at the same time by a common external clock.

• Asynchronous counters can be implemented with D and J-K flip-flops.

Which is another term for "asynchronous counters"?

• ladder counters

• pulse wave counters

• ripple counters

• step counters

Use the diagram of the circuit to answer the question.

• count starts at 1 and resets at 6; count range is 1-5

• count starts at 1 and resets at 7; count range is 1-6

• count starts at 6 and resets at 0; count range is 6-1

• count starts at 7 and resets at 0; count range is 7-1

Use the diagram of the circuit to answer the question.

• . count starts at 0 and resets at 13; count range is 0-12

• count starts at 0 and resets at 14; count range is 0-13

• count starts at 1 and resets at 13; count range is 1-12

• count starts at 13 and resets at 0; count range is 13-1

Use the image below to answer the question.

• Modulus 12

• Modulus 13

• Modulus 14

• Modulus 15

What is this?

• Active Low Input

• Negative Edge Trigger

• Active High Input

• Positive Edge Trigger

• Active Low Input

• Negative Edge Trigger

• Active High Input

• Positive Edge Trigger

• Active Low Input

• Negative Edge Trigger

• Active High Input

• Positive Edge Trigger

What is this?

• Active Low Input

• Negative Edge Trigger

• Active High Input

• Positive Edge Trigger