EMC Proven Professional – PowerMax Specialist — Question 156

Which technology is used by Unity Snapshots?

Answer options

• A. Copy on First Write
• B. Inline Deduplication
• C. Redirect on Write
• D. Block Compression

Correct answer: C

Explanation

The correct answer is C, Redirect on Write, which is specifically designed to create snapshots in Unity by redirecting writes to new locations. The other options do not apply to the snapshot functionality; Copy on First Write is related to a different snapshot methodology, Inline Deduplication deals with data storage efficiency, and Block Compression pertains to data size reduction rather than snapshot creation.