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

Question

Quizplus · Accepted Answer

Creating a read replica of the RDS instance will distribute the read load and improve performance. Using Amazon ElastiCache to cache read queries will also improve performance by reducing the number of times the database is accessed.

A Web-Based Application Is Running in AWS