Trusted Advisor

You use Trusted Advisor to visually confirm whether your account resource configurations are sound and are compliant with best practices. Trusted Advisor organizes its compliance alerts across five categories, which are described in Table 3.3.

TABLE 3.3 The Five Trusted Advisor Alert Categories

Category	Purpose	Examples
Cost Optimization	Identifies any resources that are running and costing you money but are either underutilized or inactive	EC2 instances or Redshift clusters that, over time, are mostly idle
Performance	Identifies configuration settings that might be blocking performance improvements	Inappropriate reliance on slower magnetic or low-throughput Elastic Block Store (EBS) volumes
Security	Identifies any failures to use security best-practice configurations	Simple Storage Service (S3) buckets with publicly accessible permissions or security groups permitting unrestricted access
Fault Tolerance	Identifies any running resources that, through poor...