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Professional · AZ-400Prep available

Microsoft Certified: DevOps Engineer Expert (AZ-400) practice exam and study path

A free, timed 60-question AZ-400 practice exam in 100 minutes, scored by domain, with every option explained after you submit. Also 124 practice questions you can check one at a time, a page for every task in the exam guide, and a study path. No sign-up.

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DevOps Engineer Expert exam pack:

$11.99for 12 months

For DevOps engineers who deliver with Azure DevOps and GitHub: work tracking and DevOps metrics, branching and repositories, packages, tests, pipelines, deployments and infrastructure as code, secrets and security scanning, and monitoring.

The exam

Exam code
AZ-400
Questions
Not yet published
Time
100 minutes
Passing score
700 of 1,000 (scaled)
Exam fee
$165 (USD)
Question types
multiple choice, multiple response

Exam AZ-400 is the expert-level Microsoft DevOps exam, and the certification also requires the Azure Administrator Associate (AZ-104) or Azure Developer Associate certification. 700 passes; the exam is offered in ten languages and has no retirement date. Microsoft doesn't publish the exam time or the number of questions for AZ-400: its exam duration page gives expert role-based exams 100 minutes without labs and says most exams have 40 to 60 questions. The fee is set by the country or region (USD 165 in the United States, the price of Microsoft's AZ role-based exams), and the certification renews every year with a free online assessment. Our forms use 60 questions split 8 / 8 / 32 / 8 / 4, close to the midpoints of the guide's ranges, and most are multi-requirement scenarios.

From Microsoft's certification page and exam guide, checked Oct 25, 2026.

Domains and weights

  • Domain 1: Design and implement processes and communications

    13%

  • Domain 2: Design and implement a source control strategy

    13%

  • Domain 3: Design and implement build and release pipelines

    54%

  • Domain 4: Develop a security and compliance plan

    13%

  • Domain 5: Implement an instrumentation strategy

    7%

On our roadmap this comes after Azure Administrator Associate. See every certification.

Practice

124 original practice questions, every option explained with the Microsoft documentation page that proves it. Free, no sign-up; progress stays on this device.

Your results on this device →

More practice exams

The lessons, the sample questions on every task page and the first full practice exam are free and stay free. A pack adds the further timed AZ-400 practice exams.

DevOps Engineer Expert exam pack

$11.99for 12 months

  • Every paid AZ-400 practice exam, timed, with every option explained
  • The next version of this exam included when it changes within your 12 months
  • 12 months of access. One payment, nothing renews by itself.
  • 14-day refund, no conditions
  • 14-day refund, no conditions: ask within 14 days of buying and you get the whole payment back.
  • No pass guarantee. These are practice exams written by us from the exam guide and the Microsoft documentation; a score here does not predict your result on the real exam.

Study path

One module per exam domain. Lessons that already exist on BytePatterns are linked; the rest are being written.

  1. Module 1: Design and implement processes and communications

    1. 1Flow of work: GitHub Flow, GitHub Issues and projects, and Azure BoardsTask 1.1

      Lesson coming

    2. 2Linking commits, pull requests, builds and bugs to work itemsTask 1.1

      Lesson coming

    3. 3Feedback cycles: notifications, GitHub Issues and service hooksTask 1.1

      Lesson coming

    4. 4Flow metrics on dashboards: cycle time, lead time and time to recoveryTask 1.2

      Lesson coming

    5. 5Queries and Analytics for planning, development, testing, security, delivery and operationsTask 1.2

      Lesson coming

    6. 6Wikis, Markdown and Mermaid, release notes, API documentation and docs from Git historyTask 1.3

      Lesson coming

    7. 7Webhooks and integrations with GitHub and Microsoft TeamsTask 1.3

      Lesson coming

  2. Module 2: Design and implement a source control strategy

    1. 8Trunk-based, feature branch and release branch strategiesTask 2.1

      Lesson coming

    2. 9Pull request workflows with branch policies and branch protection rulesTask 2.1

      Lesson coming

    3. 10Large files and large repositories: Git LFS, git-fat and ScalarTask 2.2

      Lesson coming

    4. 11Repository permissions, tags, recovering data and removing data from historyTask 2.2

      Lesson coming

  3. Module 3: Design and implement build and release pipelines

    1. 12Azure Artifacts and GitHub Packages: feeds, views and upstream sourcesTask 3.1

      Lesson coming

    2. 13Versioning packages and pipeline artifacts: SemVer and CalVerTask 3.1

      Partly covered by: Images, Layers & Multi-Stage Builds

    3. 14A testing strategy: local, unit, integration and load tests, and quality gatesTask 3.2

      Lesson coming

    4. 15Test tasks, test results and code coverage in a pipelineTask 3.2

      Lesson coming

    5. 16GitHub Actions or Azure Pipelines, and runner and agent infrastructureTask 3.3

      Lesson coming

    6. 17YAML pipelines: triggers, stages, jobs, parallelism and templatesTask 3.3

      Lesson coming

    7. 18Variables, variable groups, environments, checks and approvalsTask 3.3

      Lesson coming

    8. 19Deployment strategies: blue-green, canary, rings, feature flags and A/B testsTask 3.4

      Partly covered by: Scheduling & Rolling Updates

    9. 20Zero-downtime deployments, slots, hotfix paths and database deploymentsTask 3.4

      Partly covered by: Load Balancing

    10. 21Infrastructure as code: Bicep, ARM, deployment stacks, Terraform in pipelines and Azure Deployment EnvironmentsTask 3.5

      Lesson coming

    11. 22Configuration management and desired state: Azure Machine ConfigurationTask 3.5

      Lesson coming

    12. 23Pipeline health, cost, concurrency, retention and classic-to-YAML migrationTask 3.6

      Lesson coming

  4. Module 4: Develop a security and compliance plan

    1. 24Identities for automation: service principals, managed identities, GitHub Apps and tokensTask 4.1

      Partly covered by: Shared Responsibility & IAM

    2. 25Permissions, roles, security groups, access levels, projects and teams in GitHub and Azure DevOpsTask 4.1

      Lesson coming

    3. 26Secrets in automation: Key Vault, workload identity federation and secure filesTask 4.2

      Partly covered by: ConfigMaps, Secrets & Env, KMS, Envelope Encryption & Private CA

    4. 27Security scanning: GitHub Advanced Security, Defender for Cloud, CodeQL and DependabotTask 4.3

      Lesson coming

  5. Module 5: Implement an instrumentation strategy

    1. 28Azure Monitor, Application Insights and the insights for VMs, containers, storage and networksTask 5.1

      Partly covered by: Observability Basics, CloudWatch, Alarms & X-Ray

    2. 29Monitoring in GitHub and alerts on pipeline eventsTask 5.1

      Lesson coming

    3. 30Analyzing telemetry: infrastructure indicators, usage, distributed traces and KQLTask 5.2

      Partly covered by: Tracing a Request, Observability Basics

Every task in the exam guide

The exam guide splits each domain into task statements. Each one has a page with a short summary, the lessons that teach it and open sample questions.

Domain 1: Design and implement processes and communications

Domain 2: Design and implement a source control strategy

Domain 3: Design and implement build and release pipelines

Domain 4: Develop a security and compliance plan

Domain 5: Implement an instrumentation strategy

How these questions are made

  • Written by us from the exam guide's task statements and the Microsoft documentation — never from real exam content.
  • Every option carries its own explanation and a link to the Microsoft page that proves it.
  • A question enters a timed exam only after an independent check; until then it is a practice question.
  • Results are a plain percentage, per domain too — not an imitation of Microsoft's scaled score.

Questions about the AZ-400 practice exam

Is the AZ-400 practice exam free?
Yes. The full practice exam (60 questions, 100 minutes) is free with no sign-up, and so are the 124 practice questions, the task pages and the study path. Your attempts are saved in this browser, on this device.
How many questions does it have, and is it timed?
60 questions in 100 minutes: the real AZ-400 pace, scaled to this form. When the time runs out, the exam is submitted as it stands.
Are the answers explained?
After you submit, not during: like the real exam, the timed exam gives no feedback until the end. Then you get your score overall and per exam domain, and every question with each option explained and a link to the Microsoft documentation page behind it. In practice mode an answer is explained as soon as you check it.
What does the DevOps Engineer Expert exam pack add?
3 more timed practice exams (Practice exam 1: 60 questions, 100 minutes; Practice exam 2: 60 questions, 100 minutes; Practice exam 3: 60 questions, 100 minutes), each scored and explained the same way, and the next version of this exam if it changes within your 12 months. 12 months of access. One payment, nothing renews by itself. Everything above stays free. See the pack.
Can I get a refund?
Yes, with no conditions: ask within 14 days of buying and you get the whole payment back. The details are in the terms.
Is this an official Microsoft practice exam?
No. BytePatterns is not affiliated with, endorsed or sponsored by Microsoft. Every question is written by us from the public exam guide and the Microsoft documentation, never from real exam content, and a score here does not predict your result on the real exam. Microsoft lists its own preparation resources on its certification page.