A reporting application runs complex analytical queries against an Amazon Aurora MySQL database. These queries are slowing down the primary database used by the transactional web application. How can a solutions architect improve performance for both applications?

Answer options:

Enable Multi-AZ on the Aurora cluster.

Create an Aurora Replica and direct the reporting application to the reader endpoint.

Migrate the database to Amazon DynamoDB.

Increase the instance size of the primary database.

How to approach this question

Identify the need to separate read-heavy analytical queries from transactional writes. Read Replicas solve this.

Full Answer

B.Create an Aurora Replica and direct the reporting application to the reader endpoint.✓ Correct

Amazon Aurora Replicas share the same underlying storage as the primary instance. By creating a replica and directing the reporting application to the Aurora Reader Endpoint, you offload the heavy read queries, improving performance for the transactional application.

Common mistakes

Confusing Multi-AZ (standby, no reads) with Read Replicas (active, for reads).

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