A control that can be used to reduce the likelihood of an error occurring when an account number is entered into a computer is:
A)check digit verification
B)data encryption
C)preformatted screens
D)reasonableness checks

Question

Quizplus · Accepted Answer

Check digit verification is a control that ensures the accuracy of a numeric code by adding an extra digit to it. This extra digit is generated by applying a mathematical formula to the other digits in the code. When the code is entered into the computer, the formula is applied again, and if the resulting check digit matches the one originally calculated, the code is considered valid. This control can help to detect errors in account numbers, such as transposed digits or missing digits, before they cause problems in the system. Data encryption is a security measure that protects data from unauthorized access, but it does not directly address the issue of data accuracy. Preformatted screens and reasonableness checks are also useful controls, but they are not specifically designed to prevent errors in account numbers.

A Control That Can Be Used to Reduce the Likelihood