AL CS Chapter 15 Logic Gates Quiz

What is the output of a NOT gate if the input is 1?

• 0

• 1

• True

• Undefined

Which gate outputs 1 only if both inputs are different?

• XOR

• OR

• AND

• NAND

In which gate is the output always 1 unless both inputs are 1?

• OR

• AND

• NOR

• NAND

Which gate outputs 1 if at least one input is 1?

• AND

• OR

• NOR

• XOR

The output of a 2-input AND gate is 1. What must be true about its inputs?

• Both inputs must be 0

• Both inputs must be 1

• One input must be 0 and the other 1

• It is undefined

What happens when you connect the output of an OR gate to the input of a NOT gate?

• You get an XOR gate

• You get an AND gate

• You get a NOR gate

• You get a NAND gate

The output of a 2-input OR gate is 0. What can you say about its inputs?

• At least one input is 1

• Both inputs are 0

• One input is 0

• Both inputs are 1

If both inputs of an XOR gate are 1, what is the output?

• 0

• 1

• True

• Undefined

How does a NAND gate behave differently from an AND gate?

• It inverts the output of an AND gate

• It only works with 1 input

• It produces a 1 only when both inputs are 1

• It produces the same output as an OR gate

Which gate can be used to check if both inputs are identical?

• XOR

• AND

• XNOR

• OR