Which type of Redundant Array of Independent Disks (RAID) configuration ALWAYS provides redundancy? A. Disk mirroring. B. Disk striping. C. Disk formatting. D. Disk segmenting.

CISSP Certification 2021 practice questions.
Source: https://thorteaches.com/ Free CISSP practice exam questions for the 2021 CISSP exam version.

ANSWER

The right answer is A.

 

 Disk mirroring: Writing the same data across multiple hard disks, this is slower, the Redundant Array of Independent Disks (RAID) controller has to write all data twice, needs at least 2 disks. Disk striping can provide it too IF it uses parity, but as default it does not.

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