A computer has a mean time between failures of 235 hours and mean time to repair of 9 hours.In this case,the availability is ______.
A)96.3%
B)79.3%
C)78.9%
D)93.8%

Question

Quizplus · Accepted Answer

Availability is calculated as MTBF / (MTBF + MTTR), where MTBF is Mean Time Between Failures and MTTR is Mean Time To Repair. Substituting the given values, Availability = 235 / (235 + 9) = 235 / 244 = 0.963, or 96.3%.

A Computer Has a Mean Time Between Failures of 235