An account's bill is growing and the team suspects idle EC2 instances, underutilized EBS volumes, and over-provisioned databases. Which AWS service analyzes resource utilization and recommends rightsizing?
A.AWS Cost Explorer
Cost Explorer visualizes spend; it doesn't recommend rightsizing.
B.AWS Compute Optimizer
Correct. Compute Optimizer generates utilization-based rightsizing recommendations.
C.AWS Budgets
Budgets alerts on spend thresholds — detection, not recommendation.
D.AWS Trusted Advisor
Trusted Advisor checks best practices broadly, but Compute Optimizer is the dedicated rightsizing service.
Why this answer
AWS Compute Optimizer analyzes CloudWatch utilization metrics and recommends optimal instance types, volume configurations, and Lambda settings — the service purpose-built for rightsizing recommendations.
Correct answer: B · Last reviewed 2026-10-25
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