CV0-004 Operations and Support Practice Question
A company wants to reduce costs by identifying underutilized EC2 instances and receiving recommendations to downsize them. Which AWS service provides rightsizing recommendations based on historical utilization metrics?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
AWS Compute Optimizer
AWS Compute Optimizer analyzes utilization and provides recommendations to optimize instance types.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
AWS Cost Explorer
Why it's wrong here
Cost Explorer provides cost analysis, not rightsizing recommendations.
- ✗
AWS Trusted Advisor
Why it's wrong here
Trusted Advisor provides cost optimization but not specific rightsizing recommendations like Compute Optimizer.
- ✗
AWS Auto Scaling
Why it's wrong here
Auto Scaling adjusts capacity, not rightsizing.
- ✓
AWS Compute Optimizer
Why this is correct
AWS Compute Optimizer analyses historical utilisation metrics—such as CPU, memory, and network throughput—from Amazon CloudWatch to generate rightsizing recommendations for EC2 instances. This directly satisfies the company’s requirement to identify underutilised instances and receive downsizing suggestions, as the service uses machine learning to compare observed usage against instance family specifications and outputs specific instance type changes.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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