Exam 312-50v10 topic 1 question 273 discussion

Actual exam question from ECCouncil's 312-50v10

Question #: 273
Topic #: 1

The change of a hard drive failure is once every three years. The cost to buy a new hard drive is $300. It will require 10 hours to restore the OS and software to the new hard disk. It will require a further 4 hours to restore the database from the last backup to the new hard disk. The recovery person earns $10/hour.
Calculate the SLE, ARO, and ALE. Assume the EF = 1(100%). What is the closest approximate cost of this replacement and recovery operation per year?

A. $1320
B. $440
C. $100
D. $146

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Suggested Answer: D 🗳️

by mightyfei at Oct. 3, 2020, 5:42 p.m.

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mightyfei

Highly Voted 7 months, 1 week ago

AV (Asset value) = $300 + (14 * $10) = $440 - the cost of a hard drive plus the work of a recovery person, i.e.how much would it take to replace 1 asset? 10 hours for resorting the OS and soft + 4 hours for DB restore multiplies by hourly rate of the recovery person. SLE (Single Loss Expectancy) = AV * EF (Exposure Factor) = $440 * 1 = $440 ARO (Annual rate of occurrence) = 1/3 (every three years, meaning the probability of occurring during 1 years is 1/3) ALE (Annual Loss Expectancy) = SLE * ARO = 0.33 * $440 = $145.2 ~~$145

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Exam 312-50v10 topic 1 question 273 discussion

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