A signal processor software is expected to operate for 91.25 days after…
2017
A signal processor software is expected to operate for 91.25 days after repair, and the mean software repair time is expected to be 5 minutes. Then, the availability of the software is:
- A.
96.9862%
- B.
97.9862%
- C.
98.9962%
- D.
99.9962%
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Correct answer: D
Availability is calculated using the formula MTTF divided by the sum of MTTF and MTTR.
First, convert the mean time to failure from days to minutes: 91.25 days multiplied by 1,440 minutes per day equals 131,400 minutes.
Then, divide 131,400 by the total time including repair (131,405 minutes) to find the availability percentage, which is approximately 99.9962%.
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