NetApp Certified Implementation Engineer – SAN, Specialist — Question 56

Which ONTAP feature discards identical blocks and replaces them with references to a single shared block?

Answer options

• A. Compaction
• B. Compression
• C. Deduplication
• D. Thin provisioning

Correct answer: C

Explanation

The correct answer is C, Deduplication, as it is specifically designed to identify and eliminate duplicate data blocks, replacing them with references to a single instance. Options A (Compaction) and B (Compression) are related to reducing data size but do not specifically address the removal of duplicate blocks. Option D (Thin provisioning) relates to storage allocation efficiency rather than deduplication.