CompTIA Network+ (N10-009) — Question 120

Which of the following disaster recovery metrics is used to describe the amount of data that is lost since the last backup?

Answer options

• A. MTTR
• B. RTO
• C. RPO
• D. MTBF

Correct answer: C

Explanation

The correct answer is RPO, which stands for Recovery Point Objective, and it quantifies the maximum acceptable amount of data loss measured in time. MTTR (Mean Time to Repair) refers to the time taken to restore a system, RTO (Recovery Time Objective) is the target time to recover operations, and MTBF (Mean Time Between Failures) measures system reliability, none of which directly relate to data loss since the last backup.