Certified Information Systems Auditor (CISA) — Question 1407

Which of the following strategies BEST optimizes data storage without compromising data retention practices?

Answer options

• A. Allowing employees to store large emails on flash drives
• B. Automatically deleting emails older than one year
• C. Moving emails to a virtual email vault after 30 days
• D. Limiting the size of file attachments being sent via email

Correct answer: C

Explanation

Option C is the best choice because moving emails to a virtual email vault after 30 days ensures that important data is retained while optimizing storage. Option A does not address data retention effectively, option B risks losing important emails too soon, and option D limits functionality without improving data retention practices.