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About the Azure AZ-400 Exam

The Microsoft Certified: DevOps Engineer Expert (AZ-400) exam validates your expertise in implementing DevOps practices on Microsoft Azure. This expert-level certification is designed for DevOps engineers, Azure administrators, and developers who automate continuous integration, delivery, security, and compliance processes. Released in its current form in 2023, the AZ-400 emphasizes modern DevOps tools including Azure DevOps, GitHub Actions, and cloud-native monitoring solutions.

The exam consists of 40-60 questions to be completed in 150 minutes. Questions include multiple-choice, case studies, and scenario-based questions that test your ability to design and implement DevOps workflows. A passing score of 700/1000 is required. The exam costs $165 USD and requires the AZ-104 (Azure Administrator) certification as a prerequisite.

Exam Domains and Weighting:

  • Develop an Instrumentation Strategy (5-10%) - Application Insights, Azure Monitor, logging strategies, and telemetry configuration.
  • Develop a Site Reliability Engineering (SRE) Strategy (5-10%) - Incident management, blameless postmortems, SLIs/SLOs/SLAs, and reliability patterns.
  • Develop a Security and Compliance Plan (10-15%) - Secure DevOps workflows, secrets management (Azure Key Vault), compliance scanning, and vulnerability remediation.
  • Manage Source Control (10-15%) - Git workflows, branch policies, pull requests, Azure Repos, and GitHub repository management.
  • Facilitate Communication and Collaboration (10-15%) - Azure Boards, work item tracking, Agile/Scrum practices, and team collaboration tools.
  • Define and Implement Continuous Integration (20-25%) - Azure Pipelines, GitHub Actions, build automation, artifact management, and code quality gates.
  • Define and Implement Continuous Delivery and Release Management (10-15%) - Release pipelines, deployment strategies (blue-green, canary), infrastructure as code, and automated testing.

This certification is valid for one year from the date of completion. To maintain your certification status, you must pass a renewal assessment before the expiration date. The AZ-400 is ideal for professionals with 1-2 years of Azure experience and a strong background in either development or operations.

Why Take This Certification?

  • High Earning Potential: Azure DevOps Engineers earn average salaries of $130,000-$150,000 annually (Source: Azure DevOps Salary Surveys 2025), with senior positions exceeding $155,000-$180,000. The combination of DevOps skills and Azure expertise is highly valued in enterprise organizations implementing continuous deployment pipelines.
  • Expert-Level Recognition: As an expert-level certification, AZ-400 demonstrates mastery of both development and operations practices on Azure. This distinguishes you from associate-level professionals and opens doors to senior DevOps and cloud architecture roles.
  • Essential for Modern Development: Over 70% of Fortune 500 companies use Azure DevOps or GitHub Actions for CI/CD. This certification validates your ability to implement automated deployment pipelines, infrastructure as code, and continuous monitoring—skills critical for modern software delivery.
  • Prerequisite for Advanced Roles: The AZ-400 is often required for DevOps architect, release manager, and SRE positions. It demonstrates your ability to bridge the gap between development and operations teams, implementing collaboration workflows and automation at scale.

What You'll Learn in the AZ-400 Exam

The AZ-400 exam covers a comprehensive range of DevOps practices and Azure services essential for implementing automated CI/CD pipelines, ensuring application reliability, and maintaining security compliance. You'll demonstrate expertise in both technical implementation and process optimization.

Core DevOps Tools and Services

  • CI/CD Platforms: Azure Pipelines (YAML and Classic), GitHub Actions, workflow orchestration, multi-stage pipelines, and parallel job execution.
  • Source Control: Azure Repos, GitHub integration, branch policies, pull request workflows, code review processes, and Git best practices.
  • Artifact Management: Azure Artifacts, package feeds, upstream sources, universal packages, and dependency management.
  • Monitoring & Logging: Azure Monitor, Application Insights, Log Analytics, custom telemetry, distributed tracing, and performance profiling.
  • Security & Compliance: Azure Key Vault, managed identities, service principals, secret rotation, vulnerability scanning, and compliance automation.
  • Infrastructure as Code: Azure Resource Manager (ARM) templates, Bicep, Terraform integration, and configuration management.

Key DevOps Practices

  • Designing and implementing automated build and release pipelines with quality gates and approval workflows.
  • Implementing deployment strategies including blue-green deployments, canary releases, and feature flags.
  • Establishing Site Reliability Engineering (SRE) practices with SLIs, SLOs, SLAs, and incident response procedures.
  • Configuring branch policies, code reviews, and automated testing to maintain code quality.
  • Implementing security scanning, dependency analysis, and compliance checks in CI/CD workflows.
  • Designing instrumentation strategies with custom metrics, alerts, and dashboards for application monitoring.

How to Prepare for the AZ-400 Exam

The AZ-400 is an expert-level certification that requires practical DevOps experience and solid Azure knowledge. Since AZ-104 (Azure Administrator) is a prerequisite, ensure you have that certification before starting. Most candidates need 8-12 weeks of focused preparation, combining theoretical study with hands-on practice in Azure DevOps and GitHub.

  1. Review Prerequisites and Exam Guide (1 week): Ensure you have completed AZ-104 and review the official Microsoft AZ-400 exam page to understand the skill domains. Download the exam skills outline and familiarize yourself with the seven main areas, paying special attention to CI/CD (20-25% weight).
  2. Hands-On Labs with Azure DevOps (4-6 weeks): Create an Azure DevOps organization (free tier available) and practice building multi-stage YAML pipelines, implementing branch policies in Azure Repos, configuring artifact feeds, and setting up release gates. Build real projects that deploy to Azure App Service, Azure Kubernetes Service (AKS), and virtual machines. Practice with both Azure Pipelines and GitHub Actions workflows.
  3. Study DevOps Practices and SRE (2-3 weeks): Learn Site Reliability Engineering concepts including error budgets, SLIs/SLOs, incident response, and blameless postmortems. Study deployment strategies (blue-green, canary, ring deployments), feature flags, and A/B testing. Understand Agile methodologies, work item tracking in Azure Boards, and team collaboration patterns.
  4. Practice Exams and Weak Areas (1-2 weeks): Take timed practice tests to identify knowledge gaps. Focus extra time on areas you find challenging—commonly security integration (Key Vault, managed identities), monitoring strategies (Application Insights, Log Analytics queries), and infrastructure as code. Review case studies to practice scenario-based problem solving.

Leverage Microsoft Learn's free AZ-400 learning paths, join DevOps communities on Reddit and Discord, and consider setting up a home lab using Azure's free tier. Remember that the AZ-400 tests both breadth (across all seven domains) and depth (in CI/CD and security), so balanced preparation is essential.

Frequently Asked Questions

No. All Nex Arc practice questions are original content created by certified professionals based on official exam guides and publicly available documentation. We do not offer brain dumps, leaked questions, or actual exam content. Using or distributing real exam questions violates certification provider agreements and can result in certification revocation. Our questions are designed to test the same knowledge and skills as the real exam, using different scenarios and wording.
The Azure AZ-400 exam consists of 40-60 questions that you need to complete in 150 minutes (2.5 hours). Questions include multiple-choice, case studies, and scenario-based questions related to DevOps practices. Our premium course includes 1,020 practice questions across 17 full practice exams with detailed explanations.
The passing score is 700 out of 1000. Azure uses a scaled scoring model, and not all questions carry the same weight. Focus on understanding cloud fundamentals rather than memorizing answers.
Click on the "Buy Now" button in the sidebar to purchase the complete course. After payment, you'll have instant access to all 17 practice exams with 1,020 questions with detailed explanations and lifetime access.
The AZ-400 requires you to have already earned the AZ-104 (Azure Administrator) certification. Microsoft recommends 1-2 years of hands-on experience with Azure DevOps, including practical knowledge of version control, agile software development, and either development or infrastructure operations. You should be comfortable with Azure fundamentals and have experience implementing CI/CD processes.
The AZ-400 certification is valid for one year from the date you pass the exam. To maintain your certified status, you must complete a free renewal assessment on Microsoft Learn before your certification expires. The renewal assessment covers new features and updates to Azure DevOps services released during your certification year.
The AZ-400 exam costs $165 USD. If you don't pass on your first attempt, you must wait 24 hours before retaking the exam. After a second failed attempt, you must wait at least 14 days before each subsequent retake. Microsoft offers exam discounts for students, educators, and Microsoft Learn Cloud Skills Challenge participants.
The "Define and Implement Continuous Integration" domain carries the highest weight (20-25%), focusing on Azure Pipelines, GitHub Actions, build automation, and code quality. Other heavily tested areas include security and compliance (10-15%), source control management (10-15%), and continuous delivery strategies (10-15%). Expect scenario-based questions about pipeline troubleshooting, deployment patterns, and security integration.
Both certifications validate DevOps expertise but for different cloud platforms. AZ-400 emphasizes Azure DevOps and GitHub integration, while AWS DOP-C02 focuses on AWS CodePipeline and CloudFormation. AZ-400 requires a prerequisite certification (AZ-104), whereas DOP-C02 does not, though AWS recommends having DVA-C02 or SOA-C03. The AZ-400 is valid for one year with renewal assessments, while DOP-C02 is valid for three years. Choose based on your organization's cloud platform preference.
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