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Azure AZ-900 Cloud Concepts Guide

Study Azure AZ-900 Cloud Concepts: key concepts, common traps, and exam decision cues.

This chapter gives AZ-900 its vocabulary. Microsoft is not testing deep Azure implementation yet. It is testing whether you understand what cloud computing changes, why the consumption model matters, and how to separate IaaS, PaaS, and SaaS without drifting into product trivia too early.

Current weight in the study guide

Microsoft currently weights Cloud Concepts at 25-30% of the exam.

Work this skill area in order

Lesson Focus
1.1 Cloud Models, Consumption & Serverless Learn public, private, and hybrid cloud, the consumption model, and why serverless still fits the cloud-concepts lane.
1.2 Benefits of Cloud Services Learn how availability, scalability, reliability, predictability, security, governance, and manageability show up as cloud benefits.
1.3 IaaS, PaaS, SaaS & Use Cases Learn the service-type choices that AZ-900 uses in broad conceptual questions.

Fast routing inside this chapter

If the question is really about… Go first to…
cloud deployment models, shared responsibility, consumption pricing, or serverless 1.1 Cloud Models, Consumption & Serverless
why cloud helps with scale, reliability, security, governance, or manageability 1.2 Benefits of Cloud Services
whether the right answer is IaaS, PaaS, or SaaS 1.3 IaaS, PaaS, SaaS & Use Cases

What Microsoft is really testing here

  • whether you can keep cloud model, benefit, and service type separate
  • whether you can explain shared responsibility without acting like cloud removes customer duties
  • whether you know the difference between scalability and elasticity
  • whether you can match a use case to IaaS, PaaS, or SaaS without overthinking it

What strong answers usually do

  • classify the question as a cloud concept first, not as a product-name question
  • separate benefits from service types
  • treat consumption pricing and shared responsibility as conceptual lanes, not as isolated facts
  • prefer the broader cloud model or service model when the stem stays abstract

In this section

Revised on Sunday, May 10, 2026
2. Azure Architecture and Services