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.
Cevap
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.
Adım Adım Çözüm
Anahtar Kavram
High Availability and Resilience Metrics (RTO, RPO, MTBF, MTTR)