Which of the following logic expressions represents the logic ...

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Which of the following logic expressions represents the logic diagram in Figure 5-1?
 
  A) X = AB + AB B) X = AB + A B C) X = AB + AB D) X = A B + AB

Question 2

An edge-triggered flip-flop must have ________.
 
  A) at least two inputs to handle rising and falling edges
  B) active-low inputs and complemented outputs
  C) a pulse transition detector
  D) a very fast response time

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Answer to Question 1

D

Answer to Question 2

C