AWS Certified Solutions Architect Associate SAA-C03 Practice Question
A customer-facing online reporting dashboard requires low latency access to a significantly read-heavy database for real-time data retrieval. You must optimize this database's performance without increasing infrastructure complexity. Which solution should you implement to best meet these requirements?
Use DynamoDB Accelerator (DAX) to cache frequently accessed items.
Introduce Amazon ElastiCache to provide in-memory caching.
Switch to using Amazon Aurora with automatic scaling enabled.
Scale the relational database using Amazon RDS Read Replicas.