# Parity Generators/Checkers – 2 MCQ’s

This set of Digital Circuits Multiple Choice Questions & Answers (MCQs) focuses on “Parity Generators/Checkers – 2″.

1. Which error detection method consists of just one redundant bit per data unit?
a) Simple parity check
b) Two-dimensional parity check
c) CRC
d) Checksum

2. If odd parity is used for ASCII error detection, the number of 0s per 8-bit symbol is _______
a) Indeterminate
b) 42
c) Even
d) Odd

3. Which error detection method involves polynomials?
a) Simple parity check
b) CRC
c) Two-dimensional parity check
d) Checksum

4. The BCD number 101011 has _______ priority.
a) Even
b) Odd
c) Both even and odd
d) Undefined

5. Which error detection method can detect a single-bit error?
a) Simple parity check
b) Two-dimensional parity check
c) CRC
d) Checksum

6. The odd parity output of decimal number 9 is ___________
a) 0
b) 1
c) 1001
d) 0011

7. How many types of parity bits are found?
a) 2
b) 3
c) 4
d) 1

8. Which gates are ideal for checking the parity bits?
a) AND
b) NAND
c) EX-OR
d) EX-NOR

9. Which error detection method uses one’s complement arithmetic?
a) Simple parity check
b) Two-dimensional parity check
c) CRC
d) Checksum

10. What is a parity bit?
a) An error detection is achieved by adding an extra bit
b) After addition, the carry is found
c) Bit generated during data transmission
d) After addition, the total number of bits