NS0-157 · Question #66
Which four features does Cluster-Mode support? (Choose four.)
The correct answer is A. Data protection mirrors B. Load-sharing mirrors C. NDMP tape backup D. Non-disruptive upgrades. Cluster-Mode supports data protection mirrors, load-sharing mirrors, NDMP tape backup, and non-disruptive upgrades, but does not support Synchronous SnapMirror, which was a 7-Mode-only feature.
Question
Which four features does Cluster-Mode support? (Choose four.)
Options
- AData protection mirrors
- BLoad-sharing mirrors
- CNDMP tape backup
- DNon-disruptive upgrades
- ESynchronous SnapMirror
How the community answered
(31 responses)- A90% (28)
- E10% (3)
Why each option
Cluster-Mode supports data protection mirrors, load-sharing mirrors, NDMP tape backup, and non-disruptive upgrades, but does not support Synchronous SnapMirror, which was a 7-Mode-only feature.
Data protection (DP) SnapMirror relationships are a core Cluster-Mode replication feature used for disaster recovery and data vaulting.
Load-sharing mirrors provide read-only volume copies distributed across nodes to offload namespace traversal traffic for NFS and CIFS clients.
NDMP tape backup is supported in Cluster-Mode, allowing data to be backed up to tape devices using the NDMP protocol via the SVM or node scope.
Non-disruptive upgrades are a flagship Cluster-Mode capability, achieved by performing rolling upgrades one HA pair at a time so client access is uninterrupted.
Synchronous SnapMirror provided zero-RPO replication in 7-Mode only; Cluster-Mode uses asynchronous SnapMirror and did not include a synchronous variant until much later releases outside the scope of this exam objective.
Concept tested: Supported data protection and management features in Cluster-Mode
Source: https://docs.netapp.com/us-en/ontap/data-protection/snapmirror-replication-concept.html
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