Awarded for completing Distributed Databases, Replication and Consistency and passing its exam, demonstrating the ability to choose a replication and partitioning topology, select a defensible consistency model per workload, reason through quorum arithmetic and failover, and account for the residency and breach-notification consequences of data crossing regions.
Certificates are designed to be checked, not just displayed.
The credential is valid for 12 months from issue. Its public page states the expiry date, and renewing means passing the current exam again — so the credential always reflects the current material.