AWS Certified Solutions Architect - Professional SAP-C02 — Topic 1 Question 473

Question

An ecommerce company runs an application on AWS. The application has an Amazon API Gateway API that invokes an AWS Lambda function. The data is stored in an Amazon RDS for PostgreSQL DB instance. During the company’s most recent flash sale, a sudden increase in API calls negatively affected the application's performance. A solutions architect reviewed the Amazon CloudWatch metrics during that time and noticed a significant increase in Lambda invocations and database connections. The CPU utilization also was high on the DB instance. What should the solutions architect recommend to optimize the application's performance?

Accepted Answer

Correct answer: C. The correct answer is C. Option C: Create an RDS proxy by using the Lambda console. Modify the Lambda function to use the proxy endpoint. AWS Lambda runs code without provisioning servers and scales automatically, which minimizes operational overhead. Amazon RDS Proxy pools and shares database connections to improve scalability and resilience. Amazon RDS is a managed relational database that handles patching, backups and failover.

AWS Certified Solutions Architect - Professional SAP-C02 — Question 473