A company has a multi-tier application deployed on several Amazon EC2 instances in an Auto Scaling group. An Amazon RDS for Oracle instance is the application’s data layer that uses Oracle-specific PL/SQL functions. Traffic to the application has been steadily increasing. This is causing the EC2 instances to become overloaded and the RDS instance to run out of storage. The Auto Scaling group does not have any scaling metrics and defines the minimum healthy instance count only. The company predicts that traffic will continue to increase at a steady but unpredictable rate before leveling off. What should a solutions architect do to ensure the system can automatically scale for the increased traffic? (Choose two.)

Topic #: - All AWS Certified Solutions Architect - Associate SAA-C02 Questions

A. Configure storage Auto Scaling on the RDS for Oracle instance. Most Voted
B. Migrate the database to Amazon Aurora to use Auto Scaling storage.
C. Configure an alarm on the RDS for Oracle instance for low free storage space.
D. Configure the Auto Scaling group to use the average CPU as the scaling metric. Most Voted
E. Configure the Auto Scaling group to use the average free memory as the scaling metric.

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