Certified Information Systems Auditor (CISA) — Question 135

Which of the following BEST helps to ensure data integrity across system interfaces?

Answer options

• A. Reconciliations
• B. Environment segregation
• C. Access controls
• D. System backups

Correct answer: A

Explanation

Reconciliations are the most effective way to ensure that data remains consistent and accurate across various system interfaces, as they involve comparing and verifying data from different sources. Environment segregation, access controls, and system backups are important for security and data recovery, but they do not directly address the integrity of data as it flows between systems.