CompTIA Cloud+ Practice Test

What metric relates to the requirement that data at the disaster recovery site must not be more than 24 hours old?

1. RTO

2. RPO

3. MTTR

4. MTBF

The correct answer is: RTO

The correct choice is related to the concept of Recovery Point Objective (RPO). RPO is a critical metric in disaster recovery and business continuity planning that defines the maximum allowable amount of data loss measured in time. In this case, the requirement that data at a disaster recovery site must not be more than 24 hours old indicates that in the event of a disruption, the organization is willing to lose a maximum of one day's worth of data. This aligns directly with the definition of RPO, which is focused on how current the data must be following a recovery event. If the RPO is set to 24 hours, it ensures that any data lost must have been generated within that timeframe, meaning backups must occur at least once per day to meet this objective. Other metrics, while relevant in the context of disaster recovery and IT service management, do not specifically address the age or currency of data. RTO (Recovery Time Objective) refers to the maximum acceptable time that systems can be down after a disaster, which does not relate to data age. MTTR (Mean Time to Recovery) concerns the average time taken to repair a system after failure, and MTBF (Mean Time Between Failures) relates to the average time between system failures. Thus