What are three NetApp ONTAP storage efficiencies?

• A. Replication, archiving, migration
• B. Encryption, snapshots, disaster recovery
• C. Thin provisioning, dedupe, compression
• D. RAID, caching, compression

Answer: (C)

Storage efficiency in ONTAP comes from techniques that reduce how much physical disk space data uses. The three main ones are thin provisioning, deduplication, and compression.

Thin provisioning lets you allocate more virtual capacity to volumes than you currently have on disk, and actual disk space is used only as data is written. This prevents wasting space when volumes are created but not fully filled.

Dedupe removes duplicate data blocks across the storage, so identical blocks are stored only once. This is especially effective for datasets with repeated data, such as OS images or common file collections.

Compression reduces the size of data stored on disk, allowing more information to fit into the same physical space.

Together, these techniques maximize usable capacity. The other options describe data protection, movement, or performance features rather than direct storage efficiency, so they don’t represent the same space-saving focus.