ISC2 Exam ISSAP Topic 4 Question 34 Discussion

Actual exam question for ISC2's Information Systems Security Architecture Professional exam

Question #: 34
Topic #: 4

[All Information Systems Security Architecture Professional Questions]

Single Loss Expectancy (SLE) represents an organization's loss from a single threat. Which of the following formulas best describes the Single Loss Expectancy (SLE)?

ASLE = Asset Value (AV) * Exposure Factor (EF)

BSLE = Asset Value (AV) * Annualized Rate of Occurrence (ARO)

CSLE = Annualized Loss Expectancy (ALE) * Annualized Rate of Occurrence (ARO)

DSLE = Annualized Loss Expectancy (ALE) * Exposure Factor (EF)

Show Suggested Answer

Suggested Answer: A

the occurrence of a risk on an asset. It is mathematically expressed as follows:

Single Loss Expectancy (SLE) = Asset Value (AV) * Exposure Factor (EF)

where the Exposure Factor is represented in the impact of the risk over the asset, or percentage of asset lost. As an example, if the Asset

Value is reduced two thirds, the exposure factor value is .66. If the asset is completely lost, the Exposure Factor is 1.0. The result is a

monetary value in the same unit as the Single Loss Expectancy is expressed.

Answer options D, B, and C are incorrect. These are not valid formulas of SLE.

by Gail at May 06, 2022, 08:44 PM

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