Microsoft / Azure Azure Fundamentals Study Library
AZ-900
16 free articles on the concepts the AZ-900 exam tests, grouped by exam domain. Each one backs real questions in our practice exam.
Describe Azure Architecture and Services
- Azure Availability Zones Explained Azure Availability Zones are physically separate, independently powered datacenters in a region. Learn zonal vs. zone-redundant deployments.
- Azure Regions, Region Pairs, and Sovereign Clouds Azure regions, region pairs, and geographies explained, plus how sovereign clouds like Azure Government meet strict legal and compliance needs.
- Azure Resource Groups: What They Are and How to Use Them An Azure resource group is a logical container that holds related resources, managed and deleted as one unit. Learn its rules and design patterns.
- Azure Subscriptions vs. Management Groups: The Governance Hierarchy Azure subscriptions are the billing and access boundary; management groups sit above them to apply policy across many subscriptions via inheritance.
Describe Cloud Concepts
- Azure Reservations, Spot Instances, and Pay-As-You-Go Pricing Explained Compare Azure Pay-As-You-Go, Reservations, and Spot Virtual Machines, learn where Azure Hybrid Benefit fits, and see how AZ-900 tests each pricing option.
- CapEx vs OpEx: How Consumption-Based Pricing Changes Cloud Spending See how cloud computing shifts spending from capital to operational expenditure, how consumption-based pricing is metered, and what AZ-900 tests.
- High Availability, Reliability, and SLAs in Azure Understand high availability, reliability, fault tolerance, and Azure SLAs, including how Availability Zones, region pairs, and composite SLAs work.
- IaaS vs PaaS vs SaaS: Differences, Examples, and When to Use Each Compare Infrastructure, Platform, and Software as a Service by what each manages, who patches what, and which Azure services map to each model.
- Manageability in the Cloud: Azure Monitor, Automation, and IaC Manageability in Azure means configuring, monitoring, and maintaining resources through consistent tools: the portal, CLI, Azure Monitor, Advisor, and IaC.
- Microsoft Azure Fundamentals (AZ-900) Study Guide: Format, Domains, Cost, and How to Pass Complete AZ-900 guide: exam format, passing score, and $99 fee, plus all three domains explained and a study plan mapped to every AZ-900 topic.
- Public, Private, and Hybrid Cloud Deployment Models in Azure Public, private, and hybrid cloud each dedicate infrastructure differently. Learn the definitions, tradeoffs, and how AZ-900 scenarios point to each one.
- Scalability vs Elasticity: Vertical and Horizontal Scaling in Azure Learn the difference between scalability and elasticity in Azure, plus vertical vs horizontal scaling and how autoscale ties them together.
- Security, Compliance, and Governance Benefits of the Cloud How Azure delivers security, compliance, and governance as cloud benefits: shared physical security, audited certifications, Azure Policy, RBAC, and locks.
- Serverless Computing in Azure: Azure Functions and Event-Driven Billing Serverless computing runs your code without you managing any servers, billed only for execution time. See how Azure Functions works and when to use it.
- The 5 Essential Characteristics of Cloud Computing (AZ-900) Learn the five defining traits of cloud computing — self-service, network access, pooling, elasticity, metering — and how AZ-900 tests each one.
- The Shared Responsibility Model: Who Manages What in IaaS, PaaS, and SaaS The shared responsibility model splits security tasks between Microsoft and the customer. See what shifts across IaaS, PaaS, and SaaS, and what never does.
Reading is step one — practicing is what passes the exam.
1,300 original AZ-900 questions, every answer explained, $59 once — no subscription.