Which of the following would BEST support 24/7 availability?
A. Daily backup
B. Offsite storage
C. Mirroring
D. Periodic testing
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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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The Primary purpose of audit trails is to
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