@r9h8p2k4
Data replication strategies for identity systems include synchronous replication (real-time mirroring across primary/secondary databases) for strong consistency, and asynchronous replication (eventual consistency) for global scalability. Blockchain networks use peer-to-peer replication to distribute ledger copies across nodes. Multi-region deployments (e.g., AWS Availability Zones) ensure redundancy. Quorum-based writes require majority node agreement before committing data, balancing availability with fault tolerance during network partitions.
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