Boolean Logic

Question 1

Which of the following is true?

Accepted Answer

A Boolean data type has only two values: true and false

Answer

A Boolean data type has only two values: yes and no

Answer

A Boolean data type has only two values: 1 and 0

Question 2

What is the purpose of logic gates?

Accepted Answer

To allow an electronic system to make a decision based on its inputs

Answer

To allow a program to make a decision based on its inputs

Answer

To allow an electronic system to make a decision based on its outputs

Question 3

With four signal inputs, how many possible outputs are there?

Accepted Answer

16

Answer

4

Answer

8

Question 4

Which of the following are logic gates?

Accepted Answer

OR, AND, XOR, NOT

Answer

OR, NOT, AND

Answer

OR, AND, XOR

Question 5

How do OR and XOR logic gates differ?

Accepted Answer

An OR gate outputs a 1 if one or more of the inputs is a 1 whilst an XOR outputs a 1 if only one (not both) of the inputs is a 1

Answer

An OR gate always outputs 0 no matter what the inputs whereas an XOR outputs a 1 if one or more of the inputs is a 1

Answer

There is no difference

Question 6

Which of the following Boolean statements is true?

Accepted Answer

x > y will give the result true when the value of x is greater than the value of y

Answer

x > y will give the result false when the value of x is greater than the value of y

Answer

x > y will give the result true when the value of x is less than the value of y

Questions in this quiz (6)