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

$440 represents the SLE for a single loss event and omits applying the ARO to produce an annualized figure.

$100 accounts only for the OS/software restoration labor and ignores both the hard drive replacement cost and the database restoration labor.

$1320 would require an ARO of 3, implying three hard drive failures per year, which is not a realistic or standard assumption for this scenario.

SLE equals the hard drive replacement cost ($300 x EF 1.0 = $300) plus technician labor for OS/software restoration (10 hrs x $10 = $100) and database restoration (4 hrs x $10 = $40), totaling $440. Applying a standard ARO of 1/3 (one failure every three years), ALE = $440 x 0.333 = approximately $146, which represents the expected annualized cost of this loss scenario.