Answer: AWS Trusted Advisor

## Explanation **AWS Trusted Advisor** is the correct answer because: - **Cost Explorer** is primarily for visualizing and analyzing AWS costs and usage over time - **AWS Trusted Advisor** provides real-time guidance to help provision resources following AWS best practices, including cost optimization, performance, security, and fault tolerance recommendations - **Amazon Inspector** is a security vulnerability assessment service that helps improve security and compliance - **AWS Budgets** is used to set custom budgets that alert when costs or usage exceed budgeted amounts **AWS Trusted Advisor** inspects AWS environments across multiple categories: - **Cost Optimization**: Identifies unused resources and opportunities to reduce costs - **Performance**: Recommends improvements for service limits, latency, and resource utilization - **Security**: Checks for security gaps and vulnerabilities - **Fault Tolerance**: Ensures high availability and backup configurations - **Service Limits**: Monitors service usage against limits This makes AWS Trusted Advisor the comprehensive tool that provides both cost savings and system performance improvement recommendations.

Author: Ritesh Yadav