Certified Internal Auditor (CIA) Part 1: Business Acumen — Question 3

A credit card company detects potential errors in credit card numbers by checking whether all entered numbers contain the correct amount of digits. This is an example of which of the following IT controls?

Answer options

• A. Logic test.
• B. Check digits.
• C. Data integrity tests.
• D. Balancing control activities.

Correct answer: A

Explanation

The correct answer is A, as a logic test involves validating data based on predefined rules, such as the length of credit card numbers. The other options do not accurately describe this specific validation process; check digits are used for error detection but are not about digit count, data integrity tests encompass broader checks, and balancing control activities focus on financial reconciliation rather than data entry validation.