iGCSE Computer Science: Boolean Logic

Choose all the Boolean logic gates ...

• NOT

• AND

• BUT

• XOR

Truth table for AND gate?

• 
• 
• 
• 

Truth table for OR gate?

• 
• 
• 
• 

Which logic gate is this truth table for?

• AND

• OR

• NOR

• XOR

Which of these programming constructs make use of Boolean logic?

• if ... then ...

• while ... do ....

• repeat ... until ....

• repeat n times ....

Which of these statements is NOT a Boolean statement?

• Donald Trump is the US President

• 2 + 2 = 5

• Earth is the only planet with life in the Universe

• There are more than 15 million people in the Netherlands

If x = 3 and y = 5, choose all the statements that evaluate to True.

• x < y

• y > x**2

• 2 * x == y

• y % x == 3

What is the correct order of precedence for logical operations?

• (brackets) NOT AND OR

• (brackets) NOT OR AND

• (brackets) OR AND NOT

• NOT (brackets) OR AND

If a = 10 and b = 5 which of these Boolean expressions are True?

• a > b And a == 2 * b

• b > a And b == a / 3

• a < b And b = a / 2

• a == 2 * b And a**2 == b*20

Evaluate: 2 < 3 And ( Not 3 > 2)

• True

• False