Describe the Snapshots Data Protection Feature and Snapshot Creation UNITY-OPERATE Practice Questions (Page 1)

Questions 1–5

1. 1foundation · easy

   What is the purpose of a snapshot reserve on a Dell Unity system?

   • ATo allocate a dedicated pool of storage for snapshots to prevent them from consuming production space
   • BTo store snapshots in memory for faster access
   • CTo replicate snapshots to a remote site
   • DTo automatically delete snapshots when the reserve is full
   Reveal Solution Discussion Select an answer first
2. 2foundation · easy

   Which characteristic best describes a Dell Unity snapshot?

   • AIt is a full clone that consumes the same amount of space as the source
   • BIt is a read-only, point-in-time image that shares data blocks with the source
   • CIt is a writable copy that can be modified independently of the source
   • DIt is a backup that is stored on a different storage system
   Reveal Solution Discussion Select an answer first
4. 3expert · hard

   A company has a Dell Unity array with a 5 TB production volume and a 1 TB snapshot reserve. The volume has a 20% daily change rate, and the administrator wants to retain snapshots for 10 days. The administrator is considering increasing the snapshot reserve to 2 TB. Will this be sufficient?

   • ANo, because the snapshot reserve must be at least the size of the production volume.
   • BNo, because 2 TB is insufficient; the reserve needs to be at least 10 TB.
   • CYes, because 2 TB is more than the 1 TB of changed data over 10 days.
   • DYes, because the snapshot reserve only needs to store the initial snapshot.
   Reveal Solution Discussion Select an answer first
5. 4foundation · easy

   How does a Dell Unity snapshot ensure consistency of the captured data?

   • ABy pausing all I/O operations to the storage system during the snapshot
   • BBy requiring the application to be shut down before the snapshot is taken
   • CBy creating a point-in-time image that captures the state of the data at that moment
   • DBy copying all data to a separate location before the snapshot is taken
   Reveal Solution Discussion Select an answer first
6. 5application · medium

   A media company uses a Dell Unity array to store large video files. The storage administrator notices that after enabling snapshots, the array's performance during peak hours has degraded. What is the most likely cause of this performance impact?

   • AThe snapshots are stored on a separate tier, causing latency during access.
   • BThe snapshot creation process copies the entire volume, consuming excessive I/O.
   • CThe array is performing copy-on-write operations for changed blocks, adding I/O overhead.
   • DThe snapshot reserve is too small, causing the array to reclaim space aggressively.
   Reveal Solution Discussion Select an answer first