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?

The correct answer is A. Shadowing. Database shadowing (also called electronic shadowing) is the process of duplicating an entire database - either by writing updates to multiple locations simultaneously or by maintaining a real-time or near-real-time replica at a remote site. This provides fault-tolerance and…

Submitted by amina.ke· Apr 18, 2026Security Concepts and Practices

Question

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?

Options

AShadowing
BData mirroring
CBackup
DArchiving

How the community answered

(40 responses)

A
93% (37)
C
5% (2)
D
3% (1)

Explanation

Database shadowing (also called electronic shadowing) is the process of duplicating an entire database - either by writing updates to multiple locations simultaneously or by maintaining a real-time or near-real-time replica at a remote site. This provides fault-tolerance and redundancy because a secondary, up-to-date copy exists if the primary fails. Data mirroring (B) is a closely related concept but typically refers strictly to real-time, bit-for-bit disk duplication at the hardware level. Backup (C) is a periodic point-in-time copy, not continuous. Archiving (D) is long-term storage of historical data, not an active redundancy strategy.

Topics

#Redundancy#Fault Tolerance#Data Protection#High Availability

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