Boolean Algebra

Question 1

de Morgan’s Laws

Answer 1

Not (A or B)
= Not A and B

Vice versa

Question 2

X and 0
X and 1
X and X
X and not X

Answer 2

0
X
X
0

Question 3

X or 0
X or 1
X or X
X or not X

Answer 3

X
1
X
1

Question 4

(X or (X and Y))

X and (X or Y)

Answer 4

X

X

Question 5

Flip flop (D type)

Answer 5

2 inputs: control input and clock signal
Positive edge triggered 
When CS rising, input value changes
Uses: 
Register memory 

Store the state of a bit