A reporting application runs complex SQL queries against an Amazon RDS for MySQL database. During the end-of-month reporting period, the heavy read traffic causes the database to become unresponsive for the main transactional web application. How can a solutions architect improve performance for both workloads?

Answer options:

Enable Multi-AZ on the RDS instance and point the reporting application to the standby instance.

Create an RDS Read Replica and point the reporting application to it.

Migrate the database to Amazon DynamoDB.

Implement Amazon ElastiCache.

How to approach this question

Identify the need to separate read-heavy reporting from transactional workloads. RDS Read Replicas are designed for this.

Full Answer

B.Create an RDS Read Replica and point the reporting application to it.✓ Correct

Create an RDS Read Replica and point the reporting application to it.

Amazon RDS Read Replicas provide enhanced performance and durability for RDS database instances. They make it easy to elastically scale out beyond the capacity constraints of a single DB instance for read-heavy database workloads.

Common mistakes

Trying to use the Multi-AZ standby instance for reads (it is strictly passive).

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