Computer Science for IGCSE & O level - Data Transmission (Section 6 - No. 35)
Which of the following uses an excluded value which is a result after blocks of data, the receiving computer also calculates the value from the blocks of data and compares the values?
Parity check
Check digit
Checksum
Automatic repeat request
Giải thích
A checksum is a value calculated from a block of data that is used to detect errors during transmission or storage.