Database Selection & Scaling

RDS vs Aurora vs DynamoDB, read replicas, partitioning, and caching with ElastiCache/DAX.

Domain 3: Design High-Performing Architectures · 24% of exam · 5 questions

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Domain 3: Design High-Performing ArchitecturesDatabase Selection & ScalingmediumSingle choice

A reporting feature adds heavy read traffic to an RDS MySQL database, slowing the primary writer. Most reads are tolerant of slight staleness. What is the standard way to scale reads?

Convert the DB to a larger instance classAdd RDS read replicas and direct reporting queries to themEnable Multi-AZ and point reads at the standbyMove the database to a single DynamoDB table without changes