Certified Information Systems Auditor (CISA) — Question 922

Which of the following is the BEST security control to validate the integrity of data communicated between production databases and a big data analytics system?

Answer options

• A. Hashing in-scope data sets
• B. Hosting a digital certificate for in-scope data sets
• C. Encrypting in-scope data sets
• D. Running and comparing the count function within the in-scope data sets

Correct answer: A

Explanation

Hashing in-scope data sets provides a way to validate that the data has not been altered during transmission, ensuring its integrity. While encrypting data secures it from unauthorized access, it does not verify integrity. Hosting a digital certificate is related to authentication, and running count functions does not guarantee integrity verification.