A municipal open-data warehouse documents RPO for model-registry sync between the civic site and a cloud region. What does that hybrid data-synchronization objective primarily define?

When a municipal open-data warehouse documents RPO for model-registry sync between the civic site and a cloud region, that hybrid data-synchronization objective primarily defines how much model-registry change may be lost between sync points after a disruption. RPO is a recovery loss budget for registry state—tags, versions, metadata—not a resume-speed target or a network-throughput requirement. How quickly model-registry sync must resume service after a disruption is an RTO metric, not the RPO loss budget. The minimum network throughput needed to sustain continuous registry replication between sites is a bandwidth requirement, not the acceptable data-loss window that RPO defines. The retention period for preserving versioned registry entries for audit and rollback is a data-retention policy, not the amount of registry change that may be lost between sync points.

Exam caveat: Domain 2.5 evaluates data synchronization recovery objectives for hybrid AI; RPO must be paired with actual sync frequency and durable registries so the documented loss budget is achievable under outage.

Operational check: state the open-data model-registry RPO in time or change units, measure worst-case sync lag to the cloud region, and adjust sync cadence or replication until measured lag fits the RPO before declaring the hybrid sync design complete. Pair the documented RPO with a tested restore or re-sync drill: deliberately pause model-registry replication, introduce known registry changes on the civic side, then recover and measure how much change would have been lost versus the RPO. Paper RPOs that never meet measured lag do not satisfy hybrid synchronization objectives.