CompTIA Network+ (N10-009) — Question 117

Which of the following is used to describe the average duration of an outage for a specific service?

Answer options

• A. RPO
• B. MTTR
• C. RTO
• D. MTBF

Correct answer: B

Explanation

The correct answer is MTTR, which stands for Mean Time to Repair, and it specifically measures the average time required to fix a failed service and restore it to operational status. RPO (Recovery Point Objective) relates to data loss, RTO (Recovery Time Objective) concerns the time taken to recover a service, and MTBF (Mean Time Between Failures) indicates the average time between service interruptions, making them unsuitable for this question.