An application currently runs on EC2 and the company plans to partially move to a serverless architecture within a year. The company prefers to pay for capacity up front to save money. Which AWS purchasing option best optimizes their costs?
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Correct answer: Compute Savings Plan.
Why this is the answer
A Compute Savings Plan is the best option because it offers significant savings (up to 66%) over On-Demand prices in exchange for a commitment to a consistent amount of compute usage (measured in $/hour) for a one- or three-year term. It is flexible, applying to EC2 instances, Fargate, and Lambda, which aligns with the company's plan to partially move to a serverless architecture. Convertible Reserved Instances are less flexible as they apply only to EC2 and require manual exchange. Spot Instances are not suitable for predictable workloads or commitments, as they can be interrupted. EC2 Instance Savings Plans are less flexible than Compute Savings Plans, as they only apply to EC2 instances.
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