AQA GCSE Computer Science - 3.4.2 Boolean Logic

Which number represents True?

• 1
• 5
• 10
• 100

Which number represents False?

• 0
• -1
• -10
• -100

What base does binary use?

• 2
• 1
• 16
• 11

Which of these is not a binary gate?

• XAND
• XOR
• NAND
• NOR

In an AND gate, the inputs are ‘A’ and ‘B’ and the output is ‘Q’. If A = 0 and B = 1, what is the output, ‘Q’? 

• 0
• 1
• true
• false

In a NOT gate, the input is ‘A’ and the output is ‘Q’. If A = 0, what is the output, ‘Q’? 

• 1
• 0
• true
• false

What is the main shape for a NOT gate?

• A triangle
• A square
• A semicircle
• A rocket ship

Which of the following is true?

• A Boolean data type has only two values: true and false
• A Boolean data type has only two values: 1 and 0
• A Boolean data type has only two values: yes and no
• A Boolean data type has an infinite number of values

What is the purpose of logic gates?

• To allow an electronic system to decide based on its inputs 
• To allow a program to make a decision based on its inputs 
• To allow an electronic system to make a decision based on its outputs 
• To use an algorithm to detect the right output 

If there are 4 signal inputs, how many possible different outputs are there?

• 16
• 8
• 4
• 2