CISSP Practice question #197

Disk striping needs at least how many disks?
A: 1
B: 2
C: 3
D: 4

CBK 7: Security Operations
Source: ThorTeaches.com practice tests

Answer


B: Disk striping: Writing the data simultaneously across multiple disks providing higher write speed. Uses at least 2 disks, and in it self does not provide redundancy. We use parity with striping for the redundancy, often by XOR, if we use parity for redundancy we need at least 3 disks.

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