RPO and RSL are used to establish when services and data are completely restored.

The statement regarding RPO (Recovery Point Objective) and RSL (Recovery Service Level) is incorrect. RPO and RSL do not directly indicate when services and data are completely restored.

RPO specifically refers to the maximum tolerable period in which data might be lost due to a major incident. It defines how much data loss (measured in time) is acceptable, effectively helping organizations assess how frequently backups need to occur to minimize potential data loss.

RSL, on the other hand, is a measure that indicates the level of service restoration that is required after a disruption, but it does not specify the timeline for full restoration of services and data.

Therefore, while both RPO and RSL are crucial for planning disaster recovery and understanding data availability, they do not serve to establish a definitive point or time for the complete restoration of services and data.