DU0-001 · Question #212
MTBF is presented in which form?
The correct answer is A. Hours. MTBF (Mean Time Between Failures) is expressed in hours because it measures the average elapsed time a system operates before experiencing a failure - time being the natural unit for this metric. For example, a hard drive might have an MTBF of 1,000,000 hours, indicating…
Question
Options
- AHours
- BPercent
- CDistance
- DCurrency
How the community answered
(40 responses)- A78% (31)
- B13% (5)
- C8% (3)
- D3% (1)
Explanation
MTBF (Mean Time Between Failures) is expressed in hours because it measures the average elapsed time a system operates before experiencing a failure - time being the natural unit for this metric. For example, a hard drive might have an MTBF of 1,000,000 hours, indicating expected reliability over that operational period. Percent (B) is used for availability or failure rates, not duration; distance (C) applies to reliability metrics in transportation contexts like miles between failures (MTBF has no spatial component); and currency (D) is simply unrelated to reliability measurement. Memory tip: Think of MTBF as a clock - you're always asking "how many hours will this run before it breaks?" - keeping time front of mind.
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