Design a cloud database's write path and crash recovery

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Design how writes flow through a managed cloud relational database: from a client's commit to durable storage, how the data is replicated across machines or zones, and how the database recovers after a crash or the loss of a node. Cover what makes a commit durable, how replicas catch up, and what a reader can see during a failover.

AmazonTechnical phone screenLast asked Jan 2026
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