Azure DevOps Engineer Expert (AZ-400) Certification Guide

The AZ-400 certification validates your ability to implement DevOps practices using Azure DevOps and GitHub.

Exam Overview

Aspect	Details
Exam Code	AZ-400
Duration	120 minutes
Questions	40-60 questions
Passing Score	700/1000
Prerequisites	AZ-104 or AZ-204
Cost	$165 USD

Exam Domains

Configure Processes and Communications (10-15%)

• Agile practices
• Collaboration tools

Design and Implement Source Control (15-20%)

• Git strategies
• Branch policies

Design and Implement Build and Release (40-45%)

• CI/CD pipelines
• Deployment strategies

Develop Security and Compliance (10-15%)

• Secure DevOps
• Compliance automation

Implement Instrumentation (10-15%)

• Monitoring strategies
• Feedback mechanisms

Pipeline Example

# azure-pipelines.yml
trigger:
  - main

pool:
  vmImage: 'ubuntu-latest'

stages:
- stage: Build
  jobs:
  - job: BuildJob
    steps:
    - task: DotNetCoreCLI@2
      inputs:
        command: 'build'
        projects: '**/*.csproj'

- stage: Deploy
  jobs:
  - deployment: DeployWeb
    environment: 'production'
    strategy:
      runOnce:
        deploy:
          steps:
          - task: AzureWebApp@1
            inputs:
              azureSubscription: 'MySubscription'
              appName: 'my-web-app'

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