47. As part of a recovery strategy, a network administrator needs to make sure no more than eight hours of data loss occurs. Which of the following DR metrics describes this requirement?
Answer: A
RPO describes the requirement of no more than eight hours of data loss.
RPO, or Recovery Point Objective, defines the maximum acceptable amount of data loss measured in time. In this scenario, the administrator's goal is to ensure that data loss does not exceed eight hours, which aligns perfectly with the definition of RPO.
A) RPO
RPO is the correct choice because it specifically addresses the time frame within which data must be restored to avoid unacceptable loss. In this case, limiting data loss to eight hours directly corresponds to setting the RPO at eight hours.
B) MTTR
MTTR, or Mean Time to Repair, refers to the average time required to repair a system after a failure. While important for recovery processes, it does not relate to the amount of data that can be lost during that time, thus making it irrelevant to the requirement of limiting data loss.
C) RTO
RTO stands for Recovery Time Objective, which is the maximum acceptable time to restore operations after a disruption. Although RTO is critical for understanding system recovery timelines, it does not specifically deal with data loss, making it an incorrect choice for this requirement.
D) MTBF
MTBF, or Mean Time Between Failures, measures the average time between system failures. This metric is focused on system reliability rather than data loss, and therefore it does not apply to the requirement of limiting data loss to eight hours.
Conclusion
RPO is the only metric that accurately reflects the requirement to limit data loss to eight hours, focusing on the time frame for data restoration. All other options either pertain to different aspects of recovery or do not address data loss specifics, confirming that RPO is the definitive choice in this context.