Computer Science for IGCSE & O level - Data Transmission (Section 1 - No. 5)
Which of the following methods uses an extra bit added to a byte to ensure an even number of 1s or an odd number of 1s?
Cyclic redundancy check
Parity check
Echo digit
Check digit
คำอธิบาย
A parity check adds an extra bit to a byte to ensure an even or odd number of 1s. If this does not work, there is an error.