Designing and Implementing Microsoft DevOps Solutions (AZ-400) Practice Tests

This AZ-400 practice exam prepares you for Designing and Implementing Microsoft DevOps Solutions, the exam behind the DevOps Engineer Expert certification. It is built around the way Microsoft weights the real exam, where designing and implementing build and release pipelines alone makes up 50 to 55 percent of your score, so the questions give you heavy, repeated exposure to CI/CD across Azure DevOps and GitHub.

Beyond pipelines, you will practice source control strategy, process and communication design, security and compliance planning, and instrumentation. Remember that passing AZ-400 only grants the Expert title once you also hold AZ-104 or AZ-204, so plan your certification path accordingly. The explanations connect each answer back to the tooling and tradeoffs you face when running production DevOps.

Use the free preview to benchmark yourself, then work through the full bank until you can consistently clear 700 out of 1000. The certification is valid for one year and renews free online, so treat this practice as the start of an ongoing DevOps learning routine.

The AZ-400 exam validates expert-level proficiency in designing and implementing DevOps solutions on Microsoft Azure, covering the full software delivery lifecycle from source control and CI/CD pipelines to security, compliance, and observability. The exam was last updated on July 26, 2024, and spans five major domains: processes and communications, source control strategy, build and release pipelines (the heaviest domain at 50–55%), security and compliance, and instrumentation. Candidates are assessed on both Azure DevOps and GitHub as delivery platforms, with a strong emphasis on YAML-based pipeline authoring, infrastructure as code using Bicep and Azure Resource Manager, and integration with Microsoft security tooling such as GitHub Advanced Security and Microsoft Defender for Cloud.

The certification leads to the Microsoft Certified: DevOps Engineer Expert credential, one of Microsoft's highest-tier role-based certifications. It reflects the breadth of skills required to bridge development and operations teams, automate software delivery pipelines, implement scalable IaC strategies, and embed security and monitoring throughout the development lifecycle. The exam content spans multiple Azure services including Azure Pipelines, Azure Repos, Azure Artifacts, Azure Boards, Azure Key Vault, Azure Monitor, Application Insights, and Azure App Configuration, making it one of the broadest Azure expert-level exams available.

This exam is aimed at experienced developers and infrastructure administrators who operate at the intersection of software engineering and cloud operations. Ideal candidates hold hands-on experience with both Azure DevOps and GitHub, have already earned either the Azure Administrator Associate (AZ-104) or Azure Developer Associate (AZ-204) certification, and work—or aspire to work—on cross-functional teams alongside developers, site reliability engineers, Azure administrators, and security engineers.

Typical job roles that benefit from this certification include DevOps Engineer, Release Engineer, Platform Engineer, Cloud Infrastructure Engineer, and Site Reliability Engineer. Candidates should be comfortable designing branching strategies, authoring multi-stage YAML pipelines, managing secrets and service connections, configuring deployment patterns such as blue-green and canary releases, and integrating security scanning tools into pipelines. A background in scripting, cloud-native tooling, and agile delivery methodologies is strongly recommended.

Microsoft does not impose formal prerequisites to register for the AZ-400 exam, but earning the resulting Microsoft Certified: DevOps Engineer Expert certification requires holding either the Microsoft Certified: Azure Administrator Associate (AZ-104) or Microsoft Certified: Azure Developer Associate (AZ-204) credential. These associate certifications ensure candidates have foundational competence in either Azure infrastructure management or Azure application development before attempting the expert-level exam.

Beyond formal certification requirements, candidates are strongly advised to have practical, hands-on experience implementing both Azure DevOps and GitHub solutions in production or near-production environments. Microsoft recommends proficiency in at least one of the two core disciplines (administration or development) along with experience designing CI/CD pipelines, managing Git repositories at scale, working with Azure Key Vault, and implementing Infrastructure as Code using Bicep or Azure Resource Manager templates. Familiarity with Kusto Query Language (KQL) for log analysis and with GitHub Advanced Security features is also beneficial given the breadth of the exam's security and instrumentation domains.

The AZ-400 exam is administered by Pearson VUE and can be taken via online proctoring or at an authorized testing center. The time limit is 150 minutes, and a passing score of 700 on a 1–1000 scale is required. The exam is available in ten languages: English, Japanese, Chinese (Simplified), Chinese (Traditional), Korean, German, French, Spanish, Portuguese (Brazil), and Italian; candidates taking a non-English version may request 30 additional minutes. Pricing varies by country and region.

The exam uses a variety of question formats typical of Microsoft expert-level exams, including multiple choice, multiple select, drag-and-drop, case studies, and lab-based or scenario-driven questions. Microsoft does not publish an exact question count, but the exam is structured around the five scored domains listed in the official study guide. A free Practice Assessment is available on Microsoft Learn (Assessment ID 56) that closely mirrors the style and difficulty of actual exam questions. The certification renews annually via a free online assessment on Microsoft Learn.

Earning the Microsoft Certified: DevOps Engineer Expert via AZ-400 positions professionals for senior-level roles including DevOps Engineer, Platform Engineer, Site Reliability Engineer, and Cloud Automation Architect. In the United States, certified Azure DevOps engineers typically command annual salaries ranging from $100,000 to $160,000 depending on experience, geography, and industry vertical. The certification serves as a strong differentiator in organizations that have standardized on the Microsoft Azure and GitHub ecosystem, which includes a large share of enterprise environments undergoing cloud-native transformation.

The DevOps Engineer Expert is one of Microsoft's most comprehensive expert-level credentials and is frequently cited by hiring managers as evidence of end-to-end delivery competence rather than narrow tool expertise. Unlike associate-level certifications, AZ-400 demonstrates proficiency that spans security engineering, infrastructure automation, release management, and observability—making certified professionals valuable contributors to platform, infrastructure, and application teams alike. The certification must be renewed annually via a free online assessment on Microsoft Learn, ensuring certified individuals stay current with the platform's evolving capabilities.