SAA-C03 - Design Cost-Optimized Architectures - Section 4.5
Design cost-optimised database solutions by right-sizing instances, selecting serverless options and managing storage cost.
Compare Aurora Serverless v2, which scales compute automatically in fine-grained increments and charges per ACU-hour, with provisioned Aurora where you commit to an instance size and can apply Reserved Instance pricing. Choose DynamoDB on-demand capacity for unpredictable traffic to avoid over-provisioning, and use RDS storage auto scaling to grow allocated storage without manual resizing.
Aurora ServerlessRDS Reserved InstancesDynamoDB on-demand capacityStorage auto scaling
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