Exam 312-50 topic 8 question 215 discussion

Actual exam question from ECCouncil's 312-50

Question #: 215
Topic #: 8

What is the approximate cost of replacement and recovery operation per year of a hard drive that has a value of $300 given that the technician who charges $10/ hr would need 10 hours to restore OS and Software and needs further 4 hours to restore the database from the last backup to the new hard disk? Calculate the
SLE, ARO, and ALE. Assume the EF = 1 (100%).

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

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Suggested Answer: D 🗳️

by cehbound at July 11, 2019, 6:37 p.m.

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IamStuding

8 months, 2 weeks ago

The answer is 146. You have to calculate yearly costs, but HDD has a lifetime of 3 years, so you have to divide 440$ per 3 years

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jasonderules

1 year, 8 months ago

this questions doesn't say 3 YEARS

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cehbound

2 years, 4 months ago

Should the answer be A $440 since it is for 1 year

upvoted 4 times

Kev

2 years ago

Wouldn't it be 146? First examine the EF = 100 Hard drive fails every 3 years so divide 100/3 which = 33.333... or 33% (rounded) There's a 33% chance the hard drive will fail each year and it will definitely fail within 3 years. So ARO = 33% or .33 And SLE = 300 + 14 * 10 ($300 for the hard drive plus $14*10 for the worker) Then we have .33*(300+14*10) Remember PEMDAS? (Parenthesis, Exponent, Multiply, Divide, Add, Subtract) So we multiply what's in the parenthesis first (14*10) which = 140 Then we add what's left in the parenthesis (300 + 140) which = 440 Lastly we multiply .33*440 which = 145.2 Closest answer is 146. If you multiply 146 * 3 (for 3 years) it = 438, close to 440. If I'm off please let me know.

upvoted 1 times

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Exam 312-50 topic 8 question 215 discussion

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IamStuding

jasonderules

cehbound

Kev

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