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Zorluk: OrtaRisk Identification, Assessment, and Response Strategies

An organization evaluates the risk of a critical power surge affecting an off-site infrastructure facility housing archival data servers valued at 120,000.Riskassessmentsindicatethatamajorsurgewouldpermanentlydestroy40120,000. Risk assessments indicate that a major surge would permanently destroy 40% of the server hardware (Exposure Factor, EF = 0.40 ).Historicalweatherandutilityrecordssuggestthistypeofincidentoccursonceeveryfouryears(AnnualRateofOccurrence,). Historical weather and utility records suggest this type of incident occurs once every four years (Annual Rate of Occurrence, ARO = 0.25$). What is the Annual Loss Expectancy (ALE) for this server infrastructure?

  1. $12,000Cevap
  2. B
    $48,000
  3. C
    $30,000
  4. D
    $120,000

Cevap

The Annual Loss Expectancy (ALE) is $12,000.
The correct answer is 12,000.QuantitativeriskassessmentcalculatesSingleLossExpectancyas12,000. Quantitative risk assessment calculates Single Loss Expectancy as SLE = AV \times EF = 120,000×0.40=120,000 \times 0.40 = 48,000 .MultiplyingSLEbytheAnnualRateofOccurrence(. Multiplying SLE by the Annual Rate of Occurrence ( ARO = 0.25 )yields) yields ALE = 48,000×0.25=48,000 \times 0.25 = 12,000$.

Adım Adım Çözüm

1
Calculate the Single Loss Expectancy (SLE)
SLE=Asset Value (AV)×Exposure Factor (EF)=SLE = \text{Asset Value (AV)} \times \text{Exposure Factor (EF)} = 120,000 \times 0.40 = 48,00048,000
SLE determines the expected monetary loss every time a risk event occurs.
2
Calculate the Annual Loss Expectancy (ALE)
ALE=SLE×Annual Rate of Occurrence (ARO)=ALE = SLE \times \text{Annual Rate of Occurrence (ARO)} = 48,000 \times 0.25 = 12,00012,000
ALE quantifies the expected annualized financial loss resulting from a specific risk.

Anahtar Kavram

Quantitative Risk Analysis (ALE Formula)
Tahmini Süre:1m 30s
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Konular

Risk Identification, Assessment, and Response Strategies

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