You Are Doing a Load Testing Exercise on Your Application

question 154

Multiple Choice

You are doing a load testing exercise on your application hosted on AWS. While testing your Amazon RDS MySQL DB instance, you notice that when you hit 100% CPU utilization on it, your application becomes non- responsive. Your application is read-heavy. What are methods to scale your data tier to meet the application's needs? (Choose three.)

• A) Add Amazon RDS DB read replicas, and have your application direct read queries to them.
• B) Add your Amazon RDS DB instance to an Auto Scaling group and configure your CloudWatch metric based on CPU utilization.
• C) Use an Amazon SQS queue to throttle data going to the Amazon RDS DB instance.
• D) Use ElastiCache in front of your Amazon RDS DB to cache common queries.
• E) Shard your data set among multiple Amazon RDS DB instances.
• F) Enable Multi-AZ for your Amazon RDS DB instance.

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