3.2 Logic Gates and Logic Circuits Cambridge iAS 9618

What is the function of a NOT gate?

• It inverts the input signal

• It outputs 1 only when both inputs are 1

• It outputs 1 when at least one input is 1

• It outputs 0 only when both inputs are 0

What is the output of an AND gate when both inputs are 1?

• 1

• 0

• The same as the first input

• The same as the second input

Which logic gate outputs 1 when at least one input is 1?

• OR

• AND

• NOT

• NAND

What is the function of a NAND gate?

• It outputs the opposite of an AND gate

• It outputs 1 only when both inputs are 1

• It outputs 0 when at least one input is 1

• It outputs the same as an OR gate

Which logic gate produces an output of 0 only when both inputs are 1?

• NOR

• XOR

• AND

• OR

What does an XOR (Exclusive OR) gate do?

• It outputs 1 when the inputs are different

• It outputs 1 when both inputs are the same

• It inverts the input signal

• It outputs 1 when at least one input is 1

Which logic gate outputs 0 when both inputs are 0 and 1 when both inputs are 1?

• AND

• XOR

• OR

• NOR

How many inputs does a NOT gate have?

• 1

• 2

• 3

• Unlimited

What is the output of a NAND gate when both inputs are 1?

• 0

• 1

• The same as an OR gate

• The same as an AND gate

Which logic gate is represented by this truth table? A B Output 0 0 1 0 1 1 1 0 1 1 1 0

• NAND

• AND

• OR

• NOR