Describe Storage-Based Fault Tolerance Techniques DATA-PROTECTION-MANAGEMENT-FOUNDATIONS Practice Questions (Page 4)

Questions 16–20

1. 16expert · hard

   A storage administrator is designing a new array with six 2 TB drives. The workload is a mix of 70% reads and 30% writes. The administrator must balance fault tolerance, usable capacity, and write performance. The budget allows for a hot spare. Which RAID configuration should be selected to best meet these requirements?

   • ARAID 10 with one hot spare
   • BRAID 6 without a hot spare
   • CRAID 0 with one hot spare
   • DRAID 5 with one hot spare
   Reveal Solution Discussion Select an answer first
2. 17application · medium

   A storage administrator is planning maintenance for a RAID 5 array. The administrator needs to replace a failed drive without powering down the array or affecting availability. Which feature should the administrator use?

   • AReplication
   • BSnapshot
   • CHot swap
   • DHot spare
   Reveal Solution Discussion Select an answer first
4. 18foundation · easy

   In a RAID 5 array, how does the use of parity contribute to fault tolerance?

   • AParity data is stored on a dedicated drive and is used to rebuild data if any other drive fails.
   • BParity data is used to reconstruct data from the remaining drives if one drive in the array fails.
   • CParity data is duplicated on every drive to allow the array to survive multiple simultaneous drive failures.
   • DParity data is written to a separate cache to speed up read operations, but it does not provide redundancy.
   Reveal Solution Discussion Select an answer first
5. 19application · medium

   A company has a primary storage array in its data center and a secondary array at a disaster recovery site 200 kilometers away. The application requires that data be available at the secondary site with minimal data loss in the event of a primary site failure. The network link has a latency of 20 ms. Which storage-based fault tolerance technique should the administrator implement?

   • AStorage snapshots
   • BSynchronous replication
   • CAsynchronous replication
   • DRAID 10
   Reveal Solution Discussion Select an answer first
6. 20expert · hard

   An organization is implementing a storage virtualization platform to improve fault tolerance. The platform will present a logical volume to servers, and the underlying physical storage consists of two different arrays from different vendors. The administrator needs to ensure that if one array fails, the logical volume remains available. Which feature of storage virtualization should be used?

   • ASnapshot replication
   • BMirroring across the two arrays
   • CRAID 5 within each array
   • DHot spare drives
   Reveal Solution Discussion Select an answer first