Episode 19 — Choosing Between IaaS, PaaS, and SaaS Use Cases

This episode brings together the three primary service models—Infrastructure, Platform, and Software as a Service—by teaching how to evaluate their use cases in context. Understanding the differences among these layers is a central AZ-900 skill, as exam questions often present scenarios requiring learners to identify which model fits best. The episode explains that IaaS provides control and customization, PaaS simplifies development and deployment, and SaaS delivers fully managed applications. These distinctions matter because each model changes how responsibilities and costs are distributed between Microsoft and the customer.To anchor this understanding, the episode walks through practical examples: using IaaS for hosting a legacy application requiring custom dependencies, selecting PaaS for building a scalable web app, or choosing SaaS for enabling company-wide collaboration. Learners also hear about hybrid solutions that mix models—for example, integrating a PaaS-hosted API with a SaaS customer relationship tool. This scenario-based approach helps candidates reason through the “why” behind each selection rather than memorizing definitions. By mastering these distinctions, learners gain confidence in both exam questions and real-world architectural planning. Produced by BareMetalCyber.com, where you’ll find more cyber audio courses, books, and information to strengthen your educational path. Also, if you want to stay up to date with the latest news, visit DailyCyber.News for a newsletter you can use, and a daily podcast you can commute with.

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