A security analyst is establishing baseline service level objectives for system availability and recovery. Match each resiliency metric on the left with its corresponding definition on the right.
- Recovery Time Objective (RTO)The maximum acceptable length of service disruption following a system failure.
- Recovery Point Objective (RPO)The maximum acceptable amount of data loss measured in time.
- Mean Time Between Failures (MTBF)The average expected operational uptime of a system component before a failure occurs.
- Mean Time to Repair (MTTR)The average amount of time required to fix and restore a failed system component to operational status.
Answer
Recovery Time Objective (RTO) pairs with maximum acceptable service disruption duration; Recovery Point Objective (RPO) pairs with maximum acceptable data loss time; Mean Time Between Failures (MTBF) pairs with average operational uptime before failure; Mean Time to Repair (MTTR) pairs with average time required to repair a failed component.
Each metric uniquely defines a specific resilience or availability constraint: RTO defines outage duration tolerance, RPO defines data loss age limits, MTBF calculates component reliability, and MTTR measures repair efficiency.
Step-by-Step Solution
Key Concept
High Availability and Resilience Metrics (RTO, RPO, MTBF, MTTR)