NS0-157 · Question #114
What are four storage efficiency features Data ONTAP 8.1 Cluster-Mode provides? (Choose four.)
The correct answer is B. thin provisioning D. FlexClone E. deduplication F. compression. Data ONTAP 8.1 Cluster-Mode includes thin provisioning, FlexClone, deduplication, and compression as its core storage efficiency features, while SnapVault and transparent files are not efficiency technologies.
Question
What are four storage efficiency features Data ONTAP 8.1 Cluster-Mode provides? (Choose four.)
Options
- Atransparent files
- Bthin provisioning
- CSnapVault
- DFlexClone
- Ededuplication
- Fcompression
How the community answered
(39 responses)- A3% (1)
- B92% (36)
- C5% (2)
Why each option
Data ONTAP 8.1 Cluster-Mode includes thin provisioning, FlexClone, deduplication, and compression as its core storage efficiency features, while SnapVault and transparent files are not efficiency technologies.
Transparent files is not a defined storage efficiency feature in Data ONTAP 8.1 Cluster-Mode.
Thin provisioning allows a volume to present more logical space than is physically allocated on the aggregate, consuming real space only as data is actually written.
SnapVault is a disk-to-disk backup and replication feature used for data protection, not a storage efficiency technology.
FlexClone creates instant, space-efficient volume or file clones by sharing unchanged data blocks with the parent, requiring only incremental space for changes.
Deduplication (ASIS - Advanced Single Instance Storage) scans volume data blocks and eliminates duplicate copies, storing only one physical block per unique data pattern.
Compression encodes data blocks to require fewer bits before writing them to disk, directly reducing the physical space consumed by stored data.
Concept tested: Data ONTAP 8.1 Cluster-Mode storage efficiency features
Source: https://docs.netapp.com/us-en/ontap/volumes/overview-efficiency-concept.html
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