CompTIA Network+ (N10-009) — Question 85

Which of the following disaster recovery metrics describes the average length of time a piece of equipment can be expected to operate normally?

Answer options

• A. RPO
• B. RTO
• C. MTTR
• D. MTBF

Correct answer: D

Explanation

The correct answer is MTBF (Mean Time Between Failures), which measures the average time a system operates without failure. RPO (Recovery Point Objective) and RTO (Recovery Time Objective) relate to data recovery timelines, while MTTR (Mean Time To Repair) focuses on the time taken to fix a failed system, not its operational longevity.