DevOps Engineer Expert Sample Questions for AZ-400 Exam Prep

Get ready to pass the DevOps Engineer Expert certification with confidence using these high-quality DevOps Engineer Expert Sample Questions. Designed for IT professionals seeking to master DevOps practices in Azure, this resource includes az 400 practice tests, exam dumps, and realistic exam questions. These questions cover key areas such as CI/CD, infrastructure as code, continuous feedback, and security. Whether you're taking the AZ-400 exam for the first time or renewing your credentials, our updated az 400 practice exams and AZ-400 dumps offer the right mix of challenge and clarity. Equip yourself to excel in Microsoft DevOps certification with expert-backed content tailored for success.

DevOps Engineer Expert Sample Questions List :

1. You company has an Azure DevOps project that contains several build pipelines. The build pipeline uses around 30 open source libraries. You have to ensure that the open source libraries comply with the company"s licensing standards. Which of the following could you use for this purpose?

1. NuGet

2. Black Duck

3. Maven

4. Helm

2. A team is planning on using Azure Automation for a set of Azure Virtual machines. They need to use Azure state configuration to manage the state of the virtual machines. Which of the following actions would need to be performed to ensure the state of the virtual machines are managed effectively? Choose 5 answers from the options given below

1. Upload a configuration

2. Onboard the set of virtual machines onto Azure Automation state configuration

3. Compile the configuration

4. Check the status of the node

5. Assign the node configuration

6. Create a node management group

3. A development team has currently setup an Azure repository for source code versioning. They currently have the git client installed on their Windows workstations. They will be using this client to connect to the Azure Repo. Which of the following mechanism is used to authenticate into the repo?

1. Certificates

2. Group access

3. Personal Access token

4. Role Based access

4. You have a web app hosted on Azure App Service. The web app stores data in Azure SQL database. You need to generate an alert when there are 10,000 simultaneous connections to the database. The solution must minimise development effort. Which option should you select in the Diagnostic settings of the database?

1. Archive to a storage account

2. Send to Log Analytics

3. Stream to an event hub

5. A team is currently building and deploying an application using Azure services which includes the Devops service. You have to advise on the right security tool to use to during the following phase of the development lifecycle After a pull request During the continuous integration phase During the continuous delivery phase Which of the following would you use for the pull request phase?

1. Load Testing

2. Static Code Analysis

3. Penetration Testing

4. Threat Modeling

6. A company is planning on using Azure DevOps services for their build and release processes. They have a set of .Net applications that need to be incorporated into a build pipeline. They also want to make use of SonarQube for measuring technical debt and for identifying security vulnerabilities in the code. You have to ensure that the Azure build pipeline can use SonarQube for the build process. You have setup a separate virtual machine in Azure with SonarQube installed. You have to now setup Azure DevOps and the build pipeline in a project. Which of the following would you setup at the organization level for SonarQube integration?

1. An extension

2. A task

3. A job

4. A service connection

7. A team needs to deploy a web application onto Azure using the Azure Web App service. The following requirements need to be met - Send telemetry about the web application onto Azure - Scale the web application based on the status of availability tests for the web application Which of the following would you use for storage of telemetry data?

1. Azure Logic Apps

2. Azure Application Insights

3. Azure Boards

4. Azure storage accounts

8. A company is currently using Azure Devops services for developing different applications. They want to use the inbuilt Analytics service to measure different project metrics. The team lead wants to have a chart that represents the trend of remaining work items across multiple teams and multiple sprints. The team lead decides to use the Cycle Lead time chart. Does this fulfil the requirement?

1. Yes

2. No

9. Your company has a project in Azure DevOps for a new web application. The company uses ServiceNow for change management. You need to ensure that a change request is processed before any components can be deployed to the production environment. What are two ways to integrate ServiceNow into the Azure DevOps release pipeline?

1. Define a deployment control that invokes the ServiceNow REST API.

2. Define a deployment control that invokes the ServiceNow SOAP API.

3. Define a pre-deployment gate before the deployment to the Prod stage.

4. Define a post-deployment gate after the deployment to the QA stage.

10. Note: This question is part of a series of questions that present the same scenario. Each question in the series contains a unique solution that might meet the stated goals. The lead developer at a company reports that adding new application features takes longer than expected due to a large accumulated technical debt. You need to recommend changes to reduce the accumulated technical debt. Solution: You recommend reducing the code coupling and the dependency cycles. Does this meet the goal?

1. Yes

2. No

11. A company is planning on Azure DevOps and also use DevOps practices for development and deployment of applications. They have the following patterns they want to implement for different development teams when it comes to Build automation - "Ensure that only code that compiles and passes unit testing is checked into the Integration branch" - "Ensure code is of good quality before it is released to the test area" - "Ensure security vulnerabilities are identified as soon as possible in the code base" Which of the following technique in build automation can be used for the following requirement? "Ensure that only code that compiles and passes unit testing is checked into the Integration branch"

1. Daily Builds

2. Code Analysis Integrations

3. Gated Check-ins

4. Fortify Integrations

12. Your company uses the following resources: Windows Server 2019 container images hosted in an Azure Container Registry. Azure virtual machines that run the latest version of Ubuntu An Azure Log Analytics workspace Azure Active Directory (Azure AD) An Azure key vault For which of the resources can you receive vulnerability assessments in Azure Security Center?

1. Azure Active Directory (Azure AD)

2. ?the Azure Log Analytics workspace

3. ?the Azure key vault

4. The Azure virtual machines that run the latest version of Ubuntu

13. A company wants to deploy a web-based application onto Azure. The application is going to be hosted on a set of Azure virtual machines located in different regions. They want to implement the strategy of Blue-Green deployment for all future application updates. You also want to implement an Azure DNS load balancing solution for implementing Blue-Green deployments. Which of the following would they use as the service for implementing Azure DNS load balancing?

1. Azure CDN

2. Azure Basic Load Balancer

3. Azure Traffic Manager

4. Azure Standard Load Balancer

14. You need to recommend a Docker container build strategy that meets the following requirements: - Minimized image sizes - Minimizes the security surface area of the final image What should you include in the recommendation?

1. PowerShell Desired State Configuration (DSC)

2. Docker Swarm

3. Single-stage builds

4. Multi-stage builds

15. A team is currently working on a repository in Azure repo"s for managing all of the source code. There are a high number of feature requests that is making it difficult to follow the history of the changes to the master branch. You need to enforce a strategy that would - Allows consolidation of all commit histories - Merge the changes into a single commit You decide to implement the squash merge strategy Would this fulfil the requirement?

1. Yes

2. No

16. You have to deploy Internet Information Services to an Azure virtual machine that runs Windows Server 2019. You have to carry out the deployment using the Desired State Configuration. You have to complete the below script for this requirement. Configuration SLOT_1 { node "localhost" { SLOT_2 IIS { Ensure = "Present" Name = "Web-Server" } } } Which of the following would go into SLOT_2?

1. File

2. Configuration

3. IncludeAllSubFeature

4. DependsOn

5. WindowsFeature

17. Your team has an Azure DevOps project. They have to implement a build process that would create several artifacts. The build process itself would create several artifacts. You have to deploy the artifacts on to on-premises data center servers. You decide to deploy a self-hosted agent to the on-premises server. You then decide to add a Copy and Publish Build Artifacts task to the deployment pipeline. Would this fulfil the requirement?

1. No

2. Yes

18. A team needs to track project metrics in the dashboards available in Azure Devops You need to recommend the right chart widgets to use for each of the following requirement - Ability to provide the elapsed time from the creation of work items to their completion - Ability to provide the elapsed time to complete work items once they are marked as active - Ability to provide the view on the work remaining Which of the following chart widget would you use for the following requirement "Ability to provide the view on the work remaining"

1. Lead Time

2. Velocity

3. Cycle Time

4. Burndown

19. As part of your application build process, you need to deploy a group of resources to Azure by using an Azure Resource Manager template located on GitHub. Which three action should you perform in sequence? 1. Set the template parameters. 2. Create a package. 3. Create a release pipeline. 4. Create a job agent. 5. Add an Azure Resource Group Deployment task.

1. 1 - 2 - 3

2. 3 - 5 - 1

3. 3 - 4 - 5

4. 4 - 5 - 1

20. CaseStudy: Overview Contosos is an online training provider. Existing Environment Currently Contosos has a set of web-based applications. Applications have been developed in both Java and in .Net Currently Jenkins is being used to manage application builds The source code is being hosted on an on-premise server A GitHub Enterprise installation on a windows machine is being used to host the repository Planned changes The company wants to implement the below changes Use Azure Boards for managing feature changes for the application. Management on Azure Boards must allow for managing change and review requests Applications are going to be containerized and deployed onto Kubernetes clusters hosted on Azure Build Pipelines would also be used to build the applications The Build Pipelines would be used to pick up the code from the on-premise GitHub Server One of the Build pipelines will be used to build a .Net Core application. The application would consist of 2 projects - contosoonline.csproj and contosoquiz.csproj Packages built by the pipeline need to be pushed to an internal feed named "contosolabfeed" Azure Resource Manager templates would be used to provision resources in Azure -- The management wants to see a chart to understand whether the teams are able to complete the work allocated to a sprint. The chart should be calibrated against the work items. Which of the following would you use as the widget to use in Azure Boards for this requirement?

1. Burn Down

2. Cycle Time

3. Lead Time

4. Velocity

21. Note: This question is part of a series of questions that present the same scenario. Each question in the series contains a unique solution that might meet the stated goals. You manage a project in Azure DevOps. You need to prevent the configuration of the project from changing over time. Solution: Implement Continuous Integration for the project. Does this meet the goal?

1. Yes

2. No

22. You have a private project in Azure DevOps. You need to ensure that a project manager can create custom work item queries to report on the project's progress. The solution must use the principle of least privilege. To which security group should you add the project manager?

1. Project Administrators

2. Project Collection Administrators

3. Reader

4. Contributor

23. A company is planning to build the following assets- > Source code being built by multiple development teams > Production of large and frequently update binary assets > A common library that can be used by multiple applications > A place to store logs from automated tests You have to identify the right store for each type of asset. Which of the following would you use for the following requirement? "A common library that can be used by multiple applications".

1. Azure Test Plans

2. Azure Storage

3. Azure Artifacts

4. Azure Repos

5. Azure Pipelines

24. Your team is automating the build process for a Java based application by using Azure Devops. The team needs to have code coverage in place and then ensure the outcomes are published to Azure Pipelines. Which of the following can be used for the code coverage?

1. JavaTest

2. Cobertura

3. MSTest

4. DevTest

25. A team wants to make use of Azure Pipelines for the continuous deployment of applications. The applications need to be deployed onto a set of Azure virtual machines. Which of the following can be used to prepare the virtual machines?

1. Release builds

2. Release gates

3. Deployment groups

4. Azure Pipeline Agent extension

26. Your team is working on an application with its code hosted in a git repository in Azure Repos. The application source is made up of multiple branches. You want to ensure that when the main branch is updated with the feature branch, it overrides the Git repository history. Which of the following would you use as a Git option for this?

1. Fetch

2. Merge

3. Rebase

4. Push

27. Your company is concerned that when developers introduce open source libraries, it creates licensing compliance issues. You need to add an automated process to the build pipeline to detect when common open source libraries are added to the code base. What should you use?

1. Jenkins

2. Code Style

3. Microsoft Visual SourceSafe

4. Black Duck

5. SourceGea

28. Your team need make use of NuGet packages in a project in Azure DevOps. The required NuGet packages are in a feed that required authentication. You have to ensure that the project can restore the NuGet package automatically. Which of the following can be used for this requirement?

1. An application object defined in Azure AD

2. A service principal defined in Azure AD

3. An Azure Artifacts Credential Provider

4. An Azure Automation account

29. View Case Study Which of the following command can be used to register a virtual machine as a node for skillcertlabgroup?

1. Update-AzureRmAutomationDscNode

2. New-AzureRmAutomationDscNode

3. Register-AzureRmAutomationDscNode

4. Set-AzureRmAutomationDscNode

30. You have an Azure DevOps project. You have to add a test case to the project. Which of the following are steps you would implement for this scenario? Choose 2 answers from the options given below

1. Create a new test project

2. Create a new DevOps project

3. Correct selection

4. Create a test

5. Create a work item

31. You are integrating Azure Pipelines and Microsoft Teams. You install the Azure Pipelines app in Microsoft Teams. You have an Azure DevOps organization named Contoso that contains a project name Project1. You subscribe to Project1 in Microsoft Teams. You need to ensure that you only receive events about failed builds in Microsoft Teams. What should you do first?

1. ?From Azure Pipelines, enable continuous integration for Project1.

2. ?From Azure Pipelines, add a Publish Build Artifacts task to Project1.

3. ?From Microsoft Teams, run @azure pipelines subscriptions.

4. From Microsoft Teams, run @azure pipelines subscribe https://dev.azure.com/ Contoso /Project1.

32. A DevOps team is building resource manager templates that would be used to setup multiple environments in Azure. They are building a template that would be used to deploy an Azure SQL Server along with an Azure SQL Database on the server. A snippet of the template is given below Which of the following would go into SLOT_1? "resources": [ { "name": "[variables('sqlserverName')]", "apiVersion": "2014-04-01-preview", "type": "Microsoft.Sql/servers", "location": "[resourceGroup().location]", "tags": { "displayName": "SqlServer" }, "properties": { "administratorLogin": "[parameters('administratorLogin')]", "administratorLoginPassword": "[parameters('administratorLoginPassword')]" }, "SLOT_1": [ { "name": "[parameters('databaseName')]", "apiVersion": "2014-04-01-preview", "type": "databases", "location": "[resourceGroup().location]", "SLOT_2": [ "[variables('sqlserverName')]" ], "tags": { "displayName": "Database" }, "properties": { "edition": "[parameters('edition')]", "collation": "[parameters('collation')]", "maxSizeBytes": "[parameters('maxSizeBytes')]", "requestedServiceObjectiveName": "[parameters('requestedServiceObjectiveName')]" } } ] } ]

1. Child

2. Properties

3. Resources

4. DependsOn

33. You use Azure SQL Database Intelligent Insights and Azure Application Insights for monitoring. You need to write ad-hoc queries against the monitoring data. Which query language should you use?

1. PL/SQL

2. PL/pgSQL

3. Azure Log Analytics

4. Transact-SQL

34. Note: This question is part of a series of questions that present the same scenario. Each question in the series contains a unique solution that might meet the stated goals. The lead developer at a company reports that adding new application features takes longer than expected due to a large accumulated technical debt. You need to recommend changes to reduce the accumulated technical debt. Solution: You recommend increasing the test coverage. Does this meet the goal?

1. No

2. Yes

35. A team is planning on using Azure DevOps for managing the build and release pipelines for their applications. The key requirements for change requests and approvals in the build process is given below - There is a set of users that must manually validate a change request and approve the deployment onto a stage - It needs to be ensured that no active issues are present in a work item before deployment of a build onto a stage - It needs to be ensured that no active incidents are present for the system after it has been deployed and before promoting the release During the deployment pipeline , you have to prompt the user to enter the value for a parameter that will be used on certain deployment tasks Which of the following is the feature to use for the requirement? "During the deployment pipeline , you have to prompt the user to enter the value for a parameter that will be used on certain deployment tasks"

1. Post-deployment approvals

2. Pre-deployment approvals

3. Post-deployment gates

4. Pre-deployment gates

5. Manual Intervention

36. You have a multi-tier application.  The front end of the application is hosted in Azure App Service. You need to identify the average load times of the application pages. What should you use?

1. Azure Application Insights

2. The diagnostic logs of the App Service

3. Azure Advisor

4. The activity log of the App Service

37. A development team has implemented Azure Pipelines. They have defined an approval process based on a condition. There is a policy attached that the approvals must be completed within 5 hours. But after implementation, the deployments start failing after 2 hours. You need to ensure the deployments only fail if the approval time is longer than 5 hours. You decide to modify the Time interval between re-evaluation of gates from the Post-deployment conditions section Would this fulfil the requirement?

1. No

2. Yes

38. You store source code in a Git repository in Azure repos. You use a third-party continuous integration (CI) tool to control builds. What will Azure DevOps use to authenticate with the tool?

1. Certificate authentication

2. NTLM authentication

3. A personal access token (PAT)

4. A Shared Access Signature (SAS) token

39. Your company has a private project in Azure DevOps. You have to ensure that a project manager can create custom work item queries that can be used to report on the project"s progress. The solution must use the principle of least privilege. To which security group must you add the project manager to?

1. Project Administrators

2. Readers

3. Project Collection Administrators

4. Contributors

40. A company wants to implement DevOps processes for a set of applications. These applications are based on the .Net framework. They want to ensure security validation is performed during each stage of the application lifecycle. They want to ensure the following Static Code Analysis is performed during the development stage Static Code Analysis is performed during the Continuous Integration stage All high severity issues are logged in a tracking tool You have to advise on the right tool that can be used for these requirements Which of the following can be used for the requirement? "Static Code Analysis is performed during the development stage"

1. Jenkins

2. Slack

3. Azure Boards

4. PMD

5. SonarQube

41. Note: This question is part of a series of questions that present the same scenario. You need to recommend an integration strategy for the build process of a Java application. The solution must meet the following requirements: - The builds must access an on-premises dependency management system. - The build outputs must be stored as Server artifacts in Azure DevOps. - The source code must be stored in a Git repository in Azure DevOps. Solution: Configure an Octopus Tentacle on an on-premises machine. Use the Package Application task in the build pipeline. Does this meet the goal?

1. Yes

2. No

42. You have to set up an Azure Kubernetes cluster to host a set of applications. Below are the key requirements for the deployment - The images must be published internally - The Azure Kubernetes clusters must be able to create and manage containers in Azure Which of the following would you use for the requirement? "The images must be published internally"

1. Azure Functions

2. Azure Container Registry

3. Dockerfile

4. Azure Container Instances

43. A team needs to track project metrics in the dashboards available in Azure Devops You need to recommend the right chart widgets to use for each of the following requirement Ability to provide the elapsed time from the creation of work items to their completion Ability to provide the elapsed time to complete work items once they are marked as active Ability to provide the view on the work remaining Which of the following chart widget would you use for the following requirement "Ability to provide the view on the work remaining"

1. Cycle Time

2. Lead Time

3. Burndown

4. Velocity

44. A team is currently using Azure services for building and deploying their application. The application is based on Docker containers. Below are the key requirements for the deployment of the application The application needs to be deployed onto a managed cluster The application needs to released using a managed CI/CI tool Which of the following would you use for the automated deployment of the application onto the cluster?

1. Azure Artifact

2. Azure Pipelines

3. Azure Tests

4. Azure Boards

45. You have an Azure DevOps organization named Contoso and an Azure subscription. The subscription contains an Azure virtual machine scale set named VMSS1 and an Azure Standard Load Balancer named LB1. LB1 distributes incoming requests across VMSS1 instances. You use Azure DevOps to build a web named App1 and deploy App1 to VMSS1. App1 is accessible via HTTPS only and configured to require mutual authentication by using a client certificate. You need to recommend a solution for implementing a health check of App1. The solution must meet the following requirements:    - Identify whether individual instances of VMSS1 are eligible for an upgrade operation. - Minimize administrative effort. What should you include in the recommendation?

1. An Azure Load Balancer health probe

2. Azure Monitor autoscale

3. The Custom Script Extension

4. The Application Health extension

46. Your company uses a Git source-code repository. You plan to implement GitFlow as a workflow strategy. You need to identify which branch types are used for production code and pre-production code in the strategy. Which branch type should you identify for each code type?

1. Production code: Develop Preproduction code: Master

2. Production code: Feature Preproduction code: Master

3. Production code: Master Preproduction code: Feature

4. Production code: Feature Preproduction code: Develop

5. Production code: Master Preproduction code: Develop

6. Production code: Develop Preproduction code: Feature

47. A company is planning to build the following assets- > Source code being built by multiple development teams > Production of large and frequently update binary assets > A common library that can be used by multiple applications > A place to store logs from automated tests You have to identify the right store for each type of asset. Which of the following would you use for the following requirement? "A place to store logs from automated tests"

1. Azure Storage

2. Azure Test Plans

3. Azure Repos

4. Azure Pipelines

5. Azure Artifacts

48. A company is currently planning on using the Azure Devops service for managing the CI/CD pipeline for various applications. The team wants to have an effective communication tool that can be used across the project. The tool should integrate with Azure Devops and also have a separation of channels for each team. You decide to implement Bamboo? Does this fulfil the requirement?

1. No

2. Yes

49. A team needs to track project metrics in the dashboards available in Azure Devops You need to recommend the right chart widgets to use for each of the following requirement Ability to provide the elapsed time from the creation of work items to their completion Ability to provide the elapsed time to complete work items once they are marked as active Ability to provide the view on the work remaining Which of the following chart widget would you use for the following requirement "Ability to provide the elapsed time to complete work items once they are marked as active"

1. Cycle Time

2. Burndown

3. Lead Time

4. Velocity

50. Your company is setting up a DevOps environment using Azure DevOps. They will be using Git for source code versioning in Azure Repos. They want to setup the right policies and permissions in Azure Repos. Below are the key requirements - Provide a set of users the ability to remove locks set on branches by other users - Require a minimum number of reviewers before completing a pull request - Enforce a merge strategy for pull requests Which of the following can be used to implement the requirement? "Require a minimum number of reviewers before completing a pull request"

1. Branch permissions

2. Branch policies

3. Branch folders

4. Branch tags

FAQs

1. What is the DevOps Engineer Expert certification?

It's an advanced-level certification validating expertise in combining development and operations to deliver continuous value.

2. Is the DevOps Engineer Expert worth it in 2025?

Yes, it is highly valued by employers and leads to better roles and salaries in DevOps and cloud operations.

3. What are the prerequisites for the DevOps Engineer Expert exam?

You must first earn an associate-level certification like Azure Administrator Associate or Azure Developer Associate.

4. How difficult is the DevOps Engineer Expert certification?

It’s moderately challenging, especially if you're new to pipelines, infrastructure-as-code, and release strategies.

5. How do I prepare for the DevOps Engineer Expert certification?

Use official Microsoft documentation and CertiMaan’s updated practice tests for hands-on learning.

6. What topics are covered in the DevOps Engineer Expert exam?

CI/CD pipelines, version control, testing, infrastructure as code, configuration management, and monitoring.

7. How long does it take to become a DevOps Engineer Expert?

Typically 2–3 months of focused preparation depending on your prior DevOps experience.

8. What is the cost of DevOps Engineer Expert certification?

The exam fee is $165 USD as per Microsoft’s pricing.

9. Can I take the DevOps Expert exam online?

Yes, Microsoft allows remote proctoring via Pearson VUE.

10. What is the format of the DevOps Engineer Expert exam?

The exam includes multiple-choice, drag-and-drop, and scenario-based questions.

11. What score do I need to pass the DevOps Engineer Expert exam?

You need a score of 700 out of 1000 to pass.

12. How long is the DevOps Expert certification valid?

It is valid for one year, and you can renew it online for free.

13. What is the best DevOps Engineer Expert training platform?

CertiMaan provides hands-on, updated training resources tailored to Microsoft’s syllabus.

14. Does CertiMaan offer DevOps Engineer Expert dumps or mock tests?

Yes, CertiMaan offers latest dumps, full-length mock exams, and answer explanations.

15. What jobs can I get with DevOps Engineer Expert certification?

Roles like DevOps Engineer, Site Reliability Engineer, Release Manager, and Automation Lead.

16. What is the salary of a DevOps Engineer Expert in 2025?

Salaries typically range from $100,000 to $140,000 based on location and experience.

17. Is DevOps Engineer Expert better than Azure DevOps or AWS DevOps?

It depends on your career path. This certification is Microsoft-specific; AWS has its own DevOps certs.

18. Which companies hire DevOps Engineer Experts?

Tech giants like Microsoft, IBM, Accenture, Infosys, and cloud-first companies seek DevOps Experts.

19. Do I need prior DevOps experience to take this certification?

Yes, practical experience with DevOps tools and pipelines is highly recommended.

20. Are there free resources for DevOps Engineer Expert preparation?

Yes. Microsoft Learn and CertiMaan’s sample questions are good starting points.