Practice question 14 of 400 · medium
In a deliberately simplified model, two indispensable serial components fail independently and each has measured availability of 99.9%. What is their combined availability in that model?
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✓ Correct answer
- 99.8001%
For the stated independent serial model, 0.999 × 0.999 = 0.998001, or 99.8001%. The other values do not follow this multiplication. The calculation is mathematical intuition and does not establish a contractual SLA or realistic workload estimate. Source guide: PDF page(s) 7.
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