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Glossary term

Reserved Instance

An AWS commitment to pay for a specific type of capacity, such as an instance family in a region, for one or three years in return for a discount on the hourly rate. It bills whether or not it is used. Why it matters: It saves a lot on steady workloads, but becomes waste if the workload changes.

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Where it appears

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Each row is a lesson that uses this term. The lesson where it first appears is the canonical definition.

Start with the bill.

Foundations takes about five hours. The first lesson is nine minutes.

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5h median time to finish Foundations
free account, every course, no paywall
3 certifications, each with a public verifier
Multi-cloud automation· Production-ready in 30 min· SOC 2 · ISO 27001· 20–60% off the bill, first month· 4 platforms · 1 console· Multi-cloud automation· Production-ready in 30 min· SOC 2 · ISO 27001· 20–60% off the bill, first month· 4 platforms · 1 console·