COA_Ch03_Pretest
Authored by Chun-Jung Lin
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16 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 6 pts
The Boolean AND operation is also known as:
Boolean sum
Boolean product
the complement of a Boolean OR
the complement of a Boolean XOR
2.
MULTIPLE CHOICE QUESTION
30 sec • 6 pts
Which of the following equations correctly reflects the truth table shown below?
(xy'z + x'yz' + x'yz' + x'y'z + x'y'z)'
xy'z + x'yz' + x'yz' + x'y'z + x'y'z
x'yz' + x'yz + xy'z' + xyz' + xyz
(x'yz' + x'yz + xy'z' + xyz' + xyz)'
3.
MULTIPLE CHOICE QUESTION
30 sec • 6 pts
The truth table shown below is supposed to reflect the function F(x, y, z) = y(x + z') but two lines are in error. Identify them.
1 and 2
3 and 4
5 and 6
7 and 8
4.
MULTIPLE CHOICE QUESTION
30 sec • 6 pts
The Boolean expressions, xx = x and x + x = x, are examples of (the):
Inverse Law
Associative Law
Idempotent Law
DeMorgan’s Law
5.
MULTIPLE CHOICE QUESTION
30 sec • 6 pts
The Boolean expressions (xy)' = x' + y' and (x + y)' = x'y' are examples of (the):
Distributive Law
Associative Law
Absorption Law
DeMorgan’s Law
6.
MULTIPLE CHOICE QUESTION
30 sec • 6 pts
The Boolean function F(x, y) = x'y' + xy' + y(xy') can be simplified to:
xy'
y'
1
x y' ( x xor y')
7.
MULTIPLE CHOICE QUESTION
30 sec • 6 pts
The Boolean function F(x, y) = x'y' + x'y + xy is equivalent to:
x + y'
x'(y + xy')
y(x + x'y')
(xy')'
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