Apply Dell Midrange Best Practice Recommendations for Data Services. MIDRANGE-STORAGE-SOLUTIONS-DESIGN Practice Questions (Page 5)

Questions 21–25

1. 21application · medium

   A media company stores large video files and their corresponding metadata databases on a Dell PowerStore array. The video files are already compressed (MP4 format) and are written once and read frequently. The metadata database is highly random and changes constantly. The storage administrator wants to maximize data reduction. What is the Dell best practice for configuring data reduction on this array?

   • AEnable deduplication on the video volume and compression on the database volume only.
   • BDisable data reduction on the video volume and enable compression and deduplication on the database volume.
   • CEnable compression on the video volume and disable deduplication, while enabling both on the database volume.
   • DEnable compression and deduplication on both the video volume and the database volume.
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2. 22application · medium

   A hospital is deploying a new electronic health record (EHR) system on a Dell PowerStore array. The storage team plans to use thin provisioning for the 20 TB database volume. The EHR vendor requires predictable, low-latency I/O for the database log files, while the database data files can tolerate higher latency. The array has a mix of NVMe and SAS drives. Which configuration best follows Dell best practices for this workload?

   • ACreate one thin-provisioned volume for all database files and enable the array's automated tiering to move hot data to NVMe.
   • BCreate a single thick-provisioned volume for all files on the NVMe tier to guarantee the lowest possible latency for every I/O.
   • CCreate two thick-provisioned volumes, one for logs and one for data, and rely on the array's compression to reclaim unused space.
   • DCreate two thin-provisioned volumes: one for log files pinned to the NVMe tier and one for data files allowed to tier to SAS.
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4. 23expert · hard

   A multinational company runs an ERP system on Dell PowerStore in its primary data center. The compliance team mandates that the disaster recovery (DR) copy must be in a specific country and the recovery point objective (RPO) is 30 seconds. The WAN link between the primary site and the DR site has 25 ms latency and 1 Gbps bandwidth. The ERP write rate averages 50 MB/s with peaks of 200 MB/s. Which replication strategy should the storage architect choose?

   • ASynchronous replication to the DR site to guarantee zero data loss.
   • BSynchronous replication for the first 100 GB of data and asynchronous for the rest.
   • CAsynchronous replication with a 30-second recovery point objective (RPO) using snapshots.
   • DUse snapshots replicated every 5 minutes to the DR site.
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5. 24foundation · easy

   A storage administrator wants to use snapshots on a Dell midrange array for quick recovery of a critical database. What is a Dell best practice for snapshot usage?

   • ACreate snapshots only during off-peak hours to avoid performance impact
   • BSchedule snapshots frequently enough to meet the recovery point objective (RPO) of the application
   • CKeep all snapshots indefinitely to ensure maximum data availability
   • DUse snapshots as a replacement for full backups to save storage space
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6. 25application · medium

   A company stores backup data on a Dell Unity XT array. The backup data is highly repetitive (full backups of the same servers) and is written once and rarely read. The storage administrator wants to maximize capacity savings. What is the Dell best practice for data reduction on this backup volume?

   • AEnable both compression and deduplication on the backup volume.
   • BEnable compression only on the backup volume.
   • CDisable data reduction on the backup volume to avoid performance impact.
   • DEnable deduplication only on the backup volume.
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