Identify FEC Data Protection Levels, File Striping, and Reed-Solomon Protection Definitions POWERSCALE-DEPLOY Practice Questions (Page 1)

Questions 1–5

1. 1foundation · medium

   Which statement correctly describes the Forward Error Correction (FEC) protection levels available in Dell PowerScale?

   • AFEC levels only protect against drive failures, not node failures.
   • BFEC levels define the number of data blocks and parity blocks used to protect data against node or drive failures.
   • CFEC levels are fixed and cannot be changed after cluster creation.
   • DFEC levels are the same as RAID levels and are configured per drive.
   Reveal Solution Discussion Select an answer first
2. 2expert · hard

   A PowerScale cluster uses Reed-Solomon protection. A drive fails, and the cluster begins reconstruction. During reconstruction, another drive in the same node fails. What happens to the data?

   • AThe cluster continues reconstruction and can still tolerate the second failure if within the protection level.
   • BThe cluster pauses reconstruction until the second drive is replaced.
   • CThe cluster automatically increases the protection level to handle the additional failure.
   • DData is lost because the protection level is exceeded.
   Reveal Solution Discussion Select an answer first
4. 3application · medium

   A financial firm requires a PowerScale cluster that can tolerate the failure of two drives in the same node without data loss. The cluster uses FEC protection. Which protection level meets this requirement?

   • A+2d:1n
   • B+1d:1n
   • C+3n
   • D+1n
   Reveal Solution Discussion Select an answer first
5. 4expert · hard

   A PowerScale cluster is configured with +3n protection. The administrator wants to add a new node to the cluster. How does file striping and protection adapt to the new node?

   • ANew files are striped across all nodes including the new node, while existing files are gradually rebalanced.
   • BThe protection level must be manually increased to accommodate the new node.
   • CThe new node is used only for parity data, and data striping remains unchanged.
   • DExisting files are immediately re-striped across the new node, and protection levels are recalculated.
   Reveal Solution Discussion Select an answer first
6. 5expert · hard

   A PowerScale cluster is configured with +3n protection. The administrator wants to reduce the protection level to +2n to free up capacity. What is the primary risk of this change?

   • AThe cluster will automatically delete existing parity data.
   • BThe cluster will experience performance degradation during the change.
   • CThe cluster will be more vulnerable to node failures during the transition.
   • DThe cluster will require additional nodes to support the lower protection level.
   Reveal Solution Discussion Select an answer first