A group of two or more integrated hard disks is called a .....

SECONDARY STORAGE DEVICES

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Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]

A group of two or more integrated hard disks is called a ____

A	backup
B	platter
C	RAID
D	portable hard disk

Explanation:

Detailed explanation-1: -RAID (/reɪd/; “redundant array of inexpensive disks” or “redundant array of independent disks") is a data storage virtualization technology that combines multiple physical disk drive components into one or more logical units for the purposes of data redundancy, performance improvement, or both.

Detailed explanation-2: -While RAID 1 uses two drives, RAID 10 involves at least four drives and combines the mirroring of RAID 1 with the striping of RAID 0.

Detailed explanation-3: -RAID 1 is most often implemented with two drives. Data on the drives is mirrored, providing fault tolerance in case of drive failure. Read performance is increased while write performance will be similar to a single drive. A single drive failure can be sustained without data loss.

Detailed explanation-4: -Definitions of fixed disk. a rigid magnetic disk mounted permanently in a drive unit. synonyms: hard disc, hard disk.

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SECONDARY STORAGE DEVICES