CompTIA Security+ (SY0-501) — Question 278

Which of the following describes the maximum amount of time a mission essential function can operate without the systems it depends on before significantly impacting the organization?

Answer options

• A. MTBF
• B. MTTR
• C. RTO
• D. RPO

Correct answer: C

Explanation

The correct answer is RTO (Recovery Time Objective), which indicates the maximum acceptable time to restore operations after a disruption. MTBF (Mean Time Between Failures) measures reliability, MTTR (Mean Time To Repair) refers to the time needed to repair a system, and RPO (Recovery Point Objective) pertains to the maximum acceptable data loss measured in time.