A company is running a web application on Amazon EC2 instances in an Auto Scaling group. The application uses a database that runs on an Amazon RDS for PostgreSQL DB instance. The application performs slowly as traffic increases, and the database experiences a heavy read load during periods of high traffic. Which actions should a solutions architect take to resolve these performance issues? (Choose two.)

Topic #: - All AWS Certified Solutions Architect - Associate SAA-C02 Questions

A. Enable auto scaling for the DB instance.
B. Create a read replica for the DB instance. Configure the application to send read traffic to the read replica. Most Voted
C. Enable Multi-AZ for the DB instance. Configure the application to send read traffic to the standby DB instance.
D. Create an Amazon ElastiCache cluster. Configure the application to cache query results in the ElastiCache cluster. Most Voted
E. Configure the Auto Scaling group subnets to ensure that the EC2 instances are provisioned in the same Availability Zone as the DB instance.

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