What are four storage efficiency features that Data ONTAP 8.1 or latter Cluster-Mode provides ? (Choose four)

'Transparent files' is not a recognized storage efficiency feature in Data ONTAP; it does not correspond to any defined ONTAP technology.

Thin provisioning allows a volume to present a larger logical capacity than its physically allocated storage, deferring consumption until data is written.

SnapVault is a disk-to-disk backup and data protection replication feature, not a storage efficiency technology.

FlexClone creates space-efficient, writable clones of volumes or LUNs by sharing unchanged data blocks with the parent, consuming minimal additional space.

Deduplication scans stored data and eliminates duplicate blocks, replacing redundant copies with pointers to a single shared block to reduce physical capacity usage.

Compression encodes data blocks into a smaller representation before writing to disk, directly reducing the physical storage footprint.