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What are provisioned throughput and auto-scaling in DynamoDB?

Cloud/Toolseasy0.6 min readPremium
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Asked at 1 company
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Persistent Systems
Expert AnswerPremium
118 wordsInterview-ready
**Why throughput modes**: DynamoDB charges by read/write capacity. Provisioned = you set RCU/WCU; predictable cost. On-demand = pay per request; no capacity planning. **Provisioned**: Set RCU/WCU; pay per hour. Use for steady, predictable traffic. **Auto-scaling**: DynamoDB adjusts RCU/WCU based on target utilization (e.g., 70%). Min/max bounds. Use for variable traffic with known bounds. **On-demand**: Pay per request; scales automatically. Use for spiky, unpredictable traffic....
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