A nonprofit wants to avoid buying hardware and instead pay for compute as they use it. Which economic model are they choosing?

Consumption-based pricing, also known as pay-as-you-go, is the correct economic model. It means customers only pay for the cloud resources they actually use, avoiding upfront hardware purchases and allowing costs to scale with demand. This aligns perfectly with the nonprofit's goal of avoiding hardware purchases and paying for compute as they use it. CapEx (Capital Expenditure) is incorrect because it involves significant upfront investments in physical assets like hardware, which the nonprofit wants to avoid. Fault tolerance and availability sets are technical concepts related to system reliability and high availability, respectively, not economic models for cloud resource procurement.