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Which metrics are key for defining a measurable SLA regarding system downtime and data loss?

  1. RSO

  2. RTO

  3. RPO

  4. Both RTO and RPO

The correct answer is: Both RTO and RPO

When defining a measurable Service Level Agreement (SLA) regarding system downtime and data loss, it is essential to consider both RTO (Recovery Time Objective) and RPO (Recovery Point Objective). RTO refers to the maximum acceptable time that a system can be down after a failure before it must be restored. This metric is crucial for understanding how quickly services need to be restored to meet business requirements and prevent operational disruptions. RPO, on the other hand, pertains to the maximum allowable amount of data loss measured in time. It specifies how far back in time data must be recoverable following an outage. RPO is particularly significant for organizations that rely heavily on data since it defines the tolerance for losing data due to a system failure. By combining both RTO and RPO in an SLA, a business can clearly articulate its requirements for system availability and data protection. This comprehensive approach allows stakeholders to understand the expectations for uptime and data recovery, thus ensuring that appropriate measures and resources are in place to meet those criteria effectively.