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Which actions should a solutions architect take to resolve these performance issues?

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? (Select TWO.)
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.
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.
E . Configure the Auto Scaling group subnets to ensure that the EC2 instances are provisioned in the same Availability Zone as the DB instance.

Answer: B,D

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