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

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

A.
Daily backup

B.
Offsite storage

C.
Mirroring

D.
Periodic testing

Explanation:
Mirroring of critical elements is a too! 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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