What is the purpose of AWS Trusted Advisor?

AWS Trusted Advisor is a service designed to provide insights into resource optimization. Its primary purpose is to analyze your AWS environment and offer recommendations for improving performance, security, fault tolerance, and cost management. This includes identifying underutilized or idle resources that can be downsized or terminated to save costs and suggesting ways to optimize your existing architecture for better performance and efficiency.

By leveraging Trusted Advisor, users can obtain actionable insights that align with best practices and optimize their AWS resources. This capability helps organizations to not only reduce unnecessary expenditures but also enhance the overall utilization of their cloud environment, resulting in better management of their AWS infrastructure.

In this context, other choices do not directly align with the core functionality of AWS Trusted Advisor. Monitoring application performance is usually addressed by services like Amazon CloudWatch. Consolidating multiple AWS accounts doesn't reflect the cost optimization focus of Trusted Advisor and falls more under AWS Organizations and Control Tower. Managing AWS resources through a command line is typically handled by the AWS Command Line Interface (CLI), which is fundamentally different from the advisory role of Trusted Advisor.