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Data & Analytics · Intermediate

Asynchronous Replication

Replication in which the primary acknowledges writes immediately and ships changes to replicas afterward.

Definition

Asynchronous replication adds no write latency and works across regions, but replicas lag, so a failover can lose recent transactions (RPO > 0). Read replicas and cross-region disaster recovery typically use it.

Exam tip

Asynchronous replication means possible data loss on failover; choose it for distance and performance.

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