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When you update records in multiple locations or you ma…

When you update records in multiple locations or you make a copy of the whole database at a remote location
as a way to achieve the proper level of fault-tolerance and redundancy, it is knows as?

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A.
Shadowing

B.
Data mirroring

C.
Backup

D.
Archiving

Explanation:
Database Shadowing is one type of transaction redundancy solution whereby a full copy of the user’s database
is maintained at an alternate information processing facility.
Incorrect Answers:
B: Data mirroring does not necessarily use a remote location. Data mirroring mirrors data to another server, or
to another hard drive on the same server, on the local network.
C: A backup solution would not handle database records. It handles data at the file level.
D: An archiving solution would not handle database records. It handles data at the file level.

http://www.bcmpedia.org/wiki/Database_Shadowing


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