An EC2 instance has shown low CPU utilization for a long period and may be oversized.
The organization wants to reduce cost while continuing to meet performance requirements.
Which statement describes rightsizing?
Rightsizing adjusts resource types or sizes using observed utilization and workload requirements so that cost is reduced without violating required performance or availability.
Detailed explanation
Region selection is a separate architectural and data-residency decision from adjusting a resource's size.
Region selection is a separate architectural and data-residency decision from adjusting a resource's size.
Rightsizing is a measured adjustment; unplanned deletion can harm availability and is not a rightsizing method.
Rightsizing is a measured adjustment; unplanned deletion can harm availability and is not a rightsizing method.
Rightsizing compares measurements with requirements and selects an appropriately sized resource rather than assuming that larger is always better.
Rightsizing compares measurements with requirements and selects an appropriately sized resource rather than assuming that larger is always better.
Making every resource larger increases overprovisioning and is the opposite of sizing resources to actual needs.
Making every resource larger increases overprovisioning and is the opposite of sizing resources to actual needs.
Check official documentation
Compare the following points with the official documentation.
CLF-C02試験ガイドのrightsizingの項目とAWSコスト最適化資料を確認する。
What to confirm
利用状況と要件を確認して、適切なインスタンスサイズを選ぶ考え方を説明できる。
Key points
- Rightsizing
- Utilization
- Appropriate size
Notes
- Environment: AWS公式CLF-C02試験ガイド・コスト最適化資料の確認
- Confirm current AWS pricing and licensing conditions in the relevant official service documentation.
Foundation review
Measurement-based adjustment
Compare metrics with requirements so cost is reduced without violating workload objectives.
Not simple deletion
Rightsizing is a controlled change in capacity; it is not a license to remove resources without analysis.