Which of the following would BEST support 24/7 availability?

A. Daily backup

B. Offsite storage

C. Mirroring

D. Periodic testing

Answer Posted / guest

Answer: C

Mirroring of critical elements is a tool that facilitates
immediate recoverability. Daily backup implies that it is
reasonable for restoration to take place within a number of
hours but not immediately. Offsite storage and periodic
testing of systems do not of themselves support continuous
availability.

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