A) EMS
B) DNS
C) DFS
D) RAID
E) Backup
Correct Answer: E
Solution :
[e] Backup refers to making copies of data so that these additional copies may be used to restore the original after a data loss event. These additional copies are called "backups. Backups are useful primarily in restoring a state following a disaster (called disaster recovery) and in the restoration of a small numbers of files alter they have been accidentally deleted or corrupted.
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