Check digits are especially effective at detecting
A) transposition errors.
B) accidental keying mistakes.
C) incorrect account numbers.
D) customer accounts that were never assigned.

Question

Quizplus · Accepted Answer

Check digits are commonly used to detect errors caused by transposition, which are when two digits are swapped accidentally in a number. Check digits are based on a mathematical formula applied to the digits in a number, which helps to ensure that any transposed digits will be identified as an error. Check digits can also help to detect other types of errors, but they are especially effective at catching transpositions.

Check Digits Are Especially Effective at Detecting