A secondary storage device that protects against disk failures and increases storage capacities by using stacks of hard disks best describes which of the following?
A)Magnetic disk
B)CD-ROM disk
C)Flash memory
D)WORM (Write-once,Read-many)Disks
E)RAID (Redundant Array of Independent Disks)

Question

Quizplus · Accepted Answer

RAID (Redundant Array of Independent Disks) is a secondary storage device that protects against disk failures and increases storage capacity by using stacks of hard disks. It uses data striping, mirroring, or parity to ensure redundancy and data protection in case of one or more disk failures. Magnetic disks, CD-ROM disks, flash memory, and WORM disks do not provide the same level of protection against disk failures as RAID.

A Secondary Storage Device That Protects Against Disk Failures and Increases