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An EC2 workload runs steady 24×7 at known size. Which combination MINIMISES cost while maintaining capacity guarantees?
A1-year or 3-year Reserved Instances (or EC2 Instance Savings Plans) matching the steady baseline
BSwitching to AWS Outposts in the customer's office
CBuying Reserved Instances in every Region just in case
DOn-Demand Spot Instances for everything 24×7
Answer & Solution
Correct answer: A. 1-year or 3-year Reserved Instances (or EC2 Instance Savings Plans) matching the steady baseline
Steady baseline workloads are textbook RI/Savings Plan use cases — large discounts in exchange for commitment. Spot for steady 24×7 risks interruption. Outposts is on-prem. Over-buying RIs across regions defeats the savings.
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