# Ex-OR and Ex-NOR Gates MCQ Questions & Answers

Ex-OR and Ex-NOR Gates MCQs : This section focuses on the "Ex-OR and Ex-NOR Gates". These Multiple Choice Questions (MCQs) should be practiced to improve the Ex-OR and Ex-NOR Gates skills required for various interviews (campus interview, walk-in interview, company interview), placement, entrance exam and other competitive examinations.

Question 1

Which type of gate can be used to add two bits?

A. Ex-OR
B. Ex-NOR
C. Ex-NAND
D. NOR

Question 2

Why is an exclusive-NOR gate also called an equality gate?

A. The output is false if the inputs are equal.
B. The output is true if the inputs are opposite.
C. The output is true if the inputs are equal.

Question 3

Parity systems are defined as either________ or ________ and will add an extra ________ to the digital information being transmitted.

A. positive, negative, byte
B. odd, even, bit
C. upper, lower, digit
D. on, off, decimal

Question 4

Determine odd parity for each of the following data words: 1011101        11110111        1001101

A. P = 1, P = 1, P = 0
B. P = 0, P = 0, P = 0
C. P = 1, P = 1, P = 1
D. P = 0, P = 0, P = 1

Question 5

Show from the truth table how an exclusive-OR gate can be used to invert the data on one input if the other input is a special control function.

A. Using A as the control, when A = 0, X is the same as B. When A = 1, X is the same as B.
B. Using A as the control, when A = 0, X is the same as B. When A = 1, X is the inverse of B.
C. Using A as the control, when A = 0, X is the inverse of B. When A = 1, X is the same as B.
D. Using A as the control, when A = 0, X is the inverse of B. When A = 1, X is the inverse of B.

Question 6

The Ex-NOR is sometimes called the ________.

A. parity gate
B. equality gate
C. inverted OR
D. parity gate or the equality gate

Question 7

How is odd parity generated differently from even parity?

A. The first output is inverted.
B. The last output is inverted.

Question 8

A logic circuit that provides a HIGH output if one input or the other input, but not both, is HIGH, is a(n):

A. Ex-NOR gate
B. OR gate
C. Ex-OR gate
D. NAND gate

Question 9

A logic circuit that provides a HIGH output for both inputs HIGH or both inputs LOW is a(n):

A. Ex-NOR gate
B. OR gate
C. Ex-OR gate
D. NAND gate