Identify SnapshotIQ Features, CoW and RoW Mechanics, and Scheduling POWERSCALE-DEPLOY Practice Questions (Page 1)

Questions 1–5

1. 1expert · hard

   A storage engineer is evaluating whether SnapshotIQ's CoW or an alternative RoW approach would be better for a PowerScale cluster that hosts a database with a high rate of small random writes. Which consideration is most relevant to this decision?

   • ACoW may cause write amplification because each small write requires copying the original block, potentially increasing I/O load.
   • BCoW is always more efficient than RoW for random write workloads because it avoids fragmentation.
   • CRoW is always more efficient than CoW for random write workloads because it avoids copying.
   • DRoW may cause write amplification because each small write requires copying the original block, potentially increasing I/O load.
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2. 2expert · hard

   A PowerScale administrator is considering the impact of CoW on a cluster that has many snapshots and a high write rate. They are concerned about performance degradation. Which statement best describes a potential issue with CoW?

   • AEach write to a block that is part of a snapshot requires a copy operation, which can increase write latency and I/O load.
   • BCoW has no performance impact because it only updates metadata.
   • CCoW requires the entire file to be copied for each snapshot, consuming significant storage and I/O.
   • DCoW causes data to be written to a new location, leading to fragmentation and slower reads.
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4. 3application · medium

   A user creates a SnapshotIQ snapshot of a directory, then modifies a file in that directory. Later, they want to compare the current file with the version in the snapshot. How can they access the snapshot version?

   • AThe snapshot version is not accessible after the file is modified.
   • BAccess the snapshot through the PowerScale web UI only, not through the file system.
   • CBrowse the snapshot directory, which is accessible via a hidden .snapshot directory or through the snapshot's path.
   • DUse the 'restore' command to overwrite the current file with the snapshot version.
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5. 4foundation · easy

   An administrator needs to protect a PowerScale directory against accidental file deletion or corruption while minimizing storage consumption. Which Dell PowerScale feature provides point-in-time, read-only copies of the data for this purpose?

   • ASnapshotIQ
   • BCloudPools
   • CSyncIQ
   • DSmartQuotas
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6. 5foundation · easy

   Why does a SnapshotIQ snapshot created with Copy-on-Write consume very little storage space immediately after creation?

   • AIt stores only the differences between the current state and the previous snapshot.
   • BIt uses deduplication to remove redundant data across the cluster.
   • CIt compresses all data in the snapshot to a minimal size.
   • DIt only stores metadata and pointers to the original blocks, not duplicate data.
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