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Zorluk: KolayRisk Identification, Assessment, and Response Strategies

A company is conducting a quantitative risk assessment for a standalone database server. The Asset Value (AVAV) of the server is $20,000\$20,000, and the estimated Exposure Factor (EFEF) for a server drive failure is 0.250.25 (25%25\%). Historical records indicate that this failure occurs once every two years, resulting in an Annual Rate of Occurrence (AROARO) of 0.50.5. What is the Annual Loss Expectancy (ALEALE) for this risk?

  1. $2,500\$2,500Cevap
  2. B
    $5,000\$5,000
  3. C
    $10,000\$10,000
  4. D
    $1,250\$1,250

Cevap

The Annual Loss Expectancy (ALE) is $2,500\$2,500.
The correct answer is $2,500\$2,500 because Annual Loss Expectancy (ALEALE) is determined using the standard quantitative formula ALE=SLE×AROALE = SLE \times ARO, where SLE=AV×EFSLE = AV \times EF. Multiplying the asset value of $20,000\$20,000 by the 0.250.25 exposure factor gives an SLESLE of $5,000\$5,000. Multiplying $5,000\$5,000 by the annual rate of occurrence (0.50.5) results in an ALEALE of $2,500\$2,500.

Adım Adım Çözüm

1
Calculate the Single Loss Expectancy (SLE)
SLE=AV×EF=$20,000×0.25=$5,000SLE = AV \times EF = \$20,000 \times 0.25 = \$5,000
Single Loss Expectancy measures the monetary loss of a single risk occurrence.
2
Calculate the Annual Loss Expectancy (ALE)
ALE=SLE×ARO=$5,000×0.5=$2,500ALE = SLE \times ARO = \$5,000 \times 0.5 = \$2,500
Annual Loss Expectancy represents the expected annual financial loss by factoring in how frequently the loss occurs per year.

Anahtar Kavram

Quantitative Risk Analysis (ALE calculation)
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Konular

Risk Identification, Assessment, and Response Strategies

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