Q408. A company hosts a web application on AWS that uses Amazon RDS for MySQL Multi-AZ DB instances. Usage of the web application has increased recently. Users have indicated that dynamic reports in the application load slowly. Which configuration change will improve application performance while ensuring the database is highly available for data operations?
A.Add a read replica and configure the application to direct read requests to it B.Configure the application to direct read requests to the primary and standby DB instances C.Create two read replicas in the same Availability Zone as the primary DB instance Use Amazon Route 53 to evenly distribute read requests to the replicas D.Migrate to Amazon Aurora MySQL with two Aurora Replicas in different Availability Zones Configure the application to direct read requests to the reader endpoint正确答案A
