1. Which of the following statements is true?
A. Only asynchronous events need a control clock.
B. Synchronous events do not need a clock to control them.
C. Asynchronous events are controlled by a clock.
D. Asynchronous events occur independently of the circuit clock.
2. If both inputs of an S-R flip-flop are low, what will happen when the clock goes high?
A. No change will occur in the output.
B. The output will reset.
C. The output will toggle.
D. An invalid state will exist.
3. How many flip-flops are required to construct a decade counter?
A) 4
B) 5
C) 2
D) 6
4. A decade counter will count through decimal ______.
A. 9
B. 15
C. 10
D. 8
E. What is the major advantage of the J-K flip-flop over the S-R flip-flop?
5. The modulus of a counter is
a. The number of flip-flops used
b. The actual number of states in its sequence
b. The number of times it recycles in a second
c. The maximum number of states
6) Which one of the following is an example of a counter with a truncated modulus?
A. Modulus 8
B. Modulus 14
C. Modulus 16
D. Modulus 32
