SOA-C03 Monitoring, logging and remediation

Compute Optimizer reports that several EC2 instances consistently use under 10 percent CPU and memory. Which recommendation category describes them?

Show answer and explanation

Answer: A

Compute Optimizer compares observed utilization with the capacity of the current instance type and labels resources that have substantial headroom as over-provisioned. It then suggests smaller sizes or different families that should still cover the workload. Acting on that finding lowers cost without reducing performance.

Why the other options are wrong

  • B. Under-provisioned is the opposite finding: the resource is running short of capacity and should be enlarged.
  • C. Stopped describes an instance's running state, not a rightsizing recommendation.
  • D. Optimized means the current type is already a good match, so no change is recommended.

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Reviewed November 2026. Spotted a problem with this question? Report it from the practice tool.