AZ-900 Exam Objectives

Cloud Concepts is the foundational domain of the AZ-900 exam, designed to introduce you to the core ideas behind cloud computing. In plain English, this domain covers what the cloud is, how it works, and why businesses are moving to it. You'll learn about the different cloud service models (IaaS, PaaS, SaaS) and deployment models (public, private, hybrid). Think of it like understanding the difference between owning a car (on-premises), leasing one (IaaS), taking a taxi (PaaS), or riding a bus (SaaS). Each has trade-offs in control, cost, and maintenance. Why is this important for real-world IT work? Because cloud computing is now the default for most organizations. Whether you're a system administrator, developer, or security analyst, you'll need to understand concepts like scalability (adding resources when demand spikes), elasticity (automatically scaling up and down), and high availability (keeping services running even if a server fails). For example, an e-commerce site uses cloud elasticity to handle Black Friday traffic without crashing. Without these concepts, you can't design cost-effective, resilient systems. The exam tests your ability to define and compare these concepts, not to implement them. You'll see questions like 'Which cloud model gives you the most control?' (IaaS) or 'What is a benefit of public cloud?' (pay-as-you-go pricing). You need to know the differences between CapEx (buying hardware upfront) and OpEx (paying for what you use), and understand that the cloud shifts costs from CapEx to OpEx. Also, know the shared responsibility model: the cloud provider secures the infrastructure, but you secure your data and applications. To study, start by memorizing the definitions and examples for each model and concept. Use mnemonics: IaaS = 'Infrastructure as a Service' = you manage the OS and apps; PaaS = 'Platform as a Service' = you only manage apps; SaaS = 'Software as a Service' = you just use it. Then, practice with sample questions to see how these concepts are applied in scenarios. Focus on why a company would choose one model over another. For instance, a startup might prefer PaaS to avoid managing servers. Finally, understand the trade-offs in cost, control, and responsibility. This domain is the easiest to score high on if you master the vocabulary.

294 practice questions available

The Azure Architecture and Services domain is the heart of the AZ-900 exam, covering the core building blocks of Microsoft Azure. In plain English, this domain is about understanding the fundamental components that make up Azure's cloud infrastructure—things like virtual machines, storage accounts, databases, networking, and identity services. You'll learn how these pieces fit together to create scalable, secure, and cost-effective solutions. For example, you'll explore how Azure Virtual Machines let you run Windows or Linux in the cloud, how Azure Blob Storage stores massive amounts of unstructured data like photos or videos, and how Azure SQL Database provides a managed relational database service. This domain also introduces key architectural concepts like regions (geographic locations of data centers), availability zones (isolated data centers within a region for high availability), and resource groups (logical containers for managing related resources). Understanding these basics is crucial because they form the foundation for everything else in Azure. Why is this important for real-world IT, security, and cloud work? Because Azure is one of the leading cloud platforms, and professionals across all IT roles need to know how to design and manage cloud solutions. For instance, a system administrator might need to decide between using Azure VMs or Azure App Service to host a web application, weighing factors like scalability, maintenance, and cost. A security analyst must understand Azure's shared responsibility model—where Microsoft secures the physical infrastructure (data centers, network) and you secure your data, identities, and access. Without grasping these architectural components, you can't make informed decisions about cloud adoption, cost optimization, or security. Real-world scenarios include setting up a disaster recovery plan using Azure Site Recovery, or configuring Azure Active Directory for single sign-on across multiple apps. This domain gives you the vocabulary and mental model to talk about these solutions with colleagues and clients. On the AZ-900 exam, this domain tests your knowledge of Azure's core services and how they work together. Specifically, you'll need to identify the right service for a given business requirement. For example, a question might ask: "Which Azure service should you use to host a web app that automatically scales based on demand?" (Answer: Azure App Service). Or "Which storage option is best for storing virtual machine disks?" (Answer: Azure Managed Disks). You'll also be tested on high-level architectural concepts like the difference between IaaS, PaaS, and SaaS, and when to use each. The exam doesn't require deep technical skills—you won't be asked to write code or configure a network—but you must understand the purpose and typical use cases of each service. Expect questions about Azure regions, availability zones, resource groups, and management tools like Azure Portal, Azure CLI, and Azure PowerShell. The weight of this domain (35-40%) means you'll see many questions here, so it's critical to master it. To approach studying this domain effectively, start by creating a mental map of Azure's service categories: compute, networking, storage, databases, identity, and management. Use Microsoft's official documentation and free learning paths on Microsoft Learn, which include interactive modules and sandboxes. For each service, ask yourself: What problem does it solve? When would I use it? What are its key features? Then, reinforce your learning with practice exams that mimic the real test format. Focus on scenarios that require choosing between similar services, like Azure SQL Database vs. SQL Server on a VM, or Azure Blob vs. Azure Files. Finally, use mnemonic devices to remember tricky concepts—for example, remember that availability zones protect against data center failures, while region pairs protect against regional disasters. By building this foundational knowledge, you'll not only pass the exam but also be prepared for real-world Azure work.

409 practice questions available

Azure Management and Governance is the domain that covers how to organize, secure, and control your Azure resources at scale. Think of it as the 'operating system' for your cloud environment—it includes tools for managing multiple subscriptions, applying policies to enforce compliance, tracking costs, and ensuring your cloud stays secure and well-organized. For example, you might use Azure Policy to automatically block the creation of virtual machines in certain regions, or Azure Cost Management to set budgets and get alerts when spending exceeds a threshold. This domain is crucial because without proper governance, cloud environments can quickly become chaotic, expensive, and insecure. In real-world IT, a company might have hundreds of subscriptions and thousands of resources; governance tools help administrators maintain control, meet regulatory requirements, and optimize costs. On the AZ-900 exam, this domain tests your understanding of these management and governance services, not their deep technical implementation. You'll need to know what each service does, when to use it, and how they relate to each other. Common topics include Azure Blueprints, Azure Policy, Role-Based Access Control (RBAC), resource locks, tags, Azure Cost Management, and the Microsoft Cloud Adoption Framework. To study effectively, focus on the purpose and use cases of each service rather than memorizing steps. Use Microsoft's free documentation and the Azure portal to explore these tools in a trial subscription. Create a resource group, apply a policy, set up a budget, and assign roles—this hands-on practice will solidify your understanding and help you answer scenario-based questions on the exam.

328 practice questions available