A Web-Based Application Is Running in AWS

Multiple Choice

A web-based application is running in AWS. The application is using a MySQL Amazon RDS database instance for persistence. The application stores transactional data and is read-heavy. The RDS instance gets busy during the peak usage, which shows the overall application response times. The SysOps Administrator is asked to improve the read queries performance using a scalable solution. Which options will meet these requirements? (Choose two.)

A) Scale up the RDS instance to a larger instance size
B) Enable the RDS database Multi-AZ option
C) Create a read replica of the RDS instance
D) Use Amazon DynamoDB instead of RDS
E) Use Amazon ElastiCache to cache read queries