AWS Trusted Advisor
AWS Trusted Advisor is an online tool that provides you with real-time guidance to help you provision your resources following AWS best practices.
Key Features
- 5 Pillars: Checks across Cost Optimization, Performance, Security, Fault Tolerance, and Service Limits.
- Support Plans: Basic/Dev plans get limited checks; Business/Enterprise plans get all checks.
- Notifications: Alert you when you are deviating from best practices.
Exam Tips
- "Best Practices": Answer is Trusted Advisor.
- "Reduce Cost / Increase Performance": Trusted Advisor provides recommendations for these.
- "Service Limits": Trusted Advisor warns you when you are reaching service quotas.
- "Open S3 Buckets / Security Groups": Trusted Advisor flags these potential security risks.
Common Use Cases
- Cost Savings: Finding idle EC2 instances or unattached EBS volumes.
- Security Hardening: Identifying overly permissive security groups.
- Quota Management: Monitoring service limits before they are hit.