Question

The computer sums the first four digits of a customer number to calculate the value of the fifth digit and then compares that calculation to the number typed during data entry. This is an example of a:

Answer 1

Answer to the following is check digit verification or validation.

Step-by-step explanation:

The check digit is an important function of the validation or verification.

• It ensures that the code which is produced by the computer system and re-entered into the another computer is correct or not.
• It is an individual digit which are added at the end of the code by the computer system.