A sales transaction document was coded with an invalid customer account code (7 digits rather than 8).The error was not detected until the updating run when it was found that there was no such account to which the transaction could be posted.The best control procedure would be:
A)Parity checks
B)Keypunch verification
C)A hash total check
D)A check digit

Question

Quizplus · Accepted Answer

A check digit is a form of redundancy check used for error detection on identification numbers, which would have detected the incorrect length of the customer account code.

A Sales Transaction Document Was Coded with an Invalid Customer