Certified Information Systems Auditor (CISA) — Question 1113

An organization plans to centrally decommission end-of-life databases and migrate the data to the latest model of hardware. Which of the following BEST ensures data integrity is preserved during the migration?

Answer options

• A. Reconciling sample data to most recent backups
• B. Encrypting the data
• C. Obfuscating confidential data
• D. Comparing checksums

Correct answer: D

Explanation

Comparing checksums is the most effective way to ensure that data integrity is maintained during migration, as it allows for verification that the data has not changed. Reconciling sample data to backups, encrypting data, and obfuscating confidential data do not directly validate the integrity of the migrated data itself.