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CYB 205 Infrastructure Administration
Q: Patsy is reviewing the quantitative risk assessment spreadsheet, and she sees multiple entries where the annual rate of occurrence (ARO) is far greater than the single loss expectancy (SLE). This suggests that:
A: the particular risk is assessed to happen many times per year; thus, its ARO is much greater than 1.0.
Explanation: According to the scenario, it suggests that the particular risk is assessed to happen many times per year; thus, its ARO is much greater than 1.0. Option A has the annualized rate of occurrence (ARO) use incorrect; if ARO was less than 1, the single loss expectancy is in effect spread over multiple years (as if it were amortized). Option B involves restore time and point objectives, which are not involved in the annualized loss expectancy (ALE) calculation. Option C misunderstands ALE = ARO * SLE as the basic math involved.
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