Computing

Question 1

1What is the output of a NOR gate when both inputs are 0?

Easy

A. undefined B. 2 C. 1 D. 0

Question 2

2The Boolean expression for an AND gate with inputs A and B is

Easy

A. A + B B. A · B C. A ⊕ B D. Ā

Question 3

3How many rows are in the truth table of a 3-input logic gate?

Easy

A. 3 B. 6 C. 9 D. 8

Question 4

4The output of an AND gate is 1 only when

Easy

A. any input is 1 B. inputs differ C. all inputs are 0 D. all inputs are 1

Question 5

5What is the output of an XOR gate when both inputs are 1?

Medium

A. 10 B. 0 C. 11 D. 1

Question 6

6The output of a NAND gate is 0 only when

Hard

A. all inputs are 1 B. one input is 1 C. inputs differ D. all inputs are 0

Question 7

7Which gate is called a universal gate because any other gate can be built from it?

Medium

A. XOR B. OR C. NAND D. AND

Question 8

8A NOR gate outputs 1 only when

Easy

A. all inputs are 0 B. all inputs are 1 C. inputs differ D. one input is 1

Question 9

9A XOR B is 1 when

Hard

A. both are 0 B. A and B are different C. both are 1 D. A is 1 only

Question 10

10The XOR gate outputs 1 when

Easy

A. both inputs are 0 B. the inputs are different C. both inputs are 1 D. any input is 1