A bank wants to reject erroneous account numbers to avoid invalid input.Management of the bank was told that there is a method that involves adding another number at the end of the account numbers and subjecting the other numbers to an algorithm to compare with the extra numbers.What technique is this?
A)Optical character recognition (OCR)software.
B)Check digit.
C)Validity check.
D)Field (format)check.

Question

Quizplus · Accepted Answer

This technique is called a check digit. It involves adding a digit to the end of the account number and subjecting the other digits to an algorithm in order to generate the check digit. The resulting number is the complete account number, which can then be verified for accuracy.

A Bank Wants to Reject Erroneous Account Numbers to Avoid