Question

Which of the following gate will give a 0 when both of its inputs are 1?

(a) AND

(b) OR

(c) NAND

(d) EXOR

I got this question in an interview for internship.

This interesting question is from Logic Gates in section Boolean Algebra and Logic Circuits of Computer Fundamentals

Answer 1

The correct answer is (c) NAND

Easiest explanation: The NAND gate gives 0 as the output when both of its inputs are 1 or any one of the input is 1.

It returns a 1 only if both the inputs are 0.