Certified Information Systems Auditor (CISA) — Question 1011

Which of the following controls BEST ensures the integrity of data exchanged between two systems?

Answer options

• A. Data classification
• B. Encryption
• C. Hash values
• D. Control totals

Correct answer: C

Explanation

Hash values are designed to ensure data integrity by generating a unique hash for the data being exchanged, allowing verification that the data has not been altered. While encryption protects data confidentiality, it does not inherently guarantee integrity. Data classification and control totals serve different purposes and do not specifically address the integrity of the exchanged data.