Microsoft Azure DevOps Certified AZ-400 Study Guide – Perfect Study Materials For Learning

1. Topic 1, Litware inc. Case Study: 1



Overview

Existing Environment

Litware, Inc. an independent software vendor (ISV) Litware has a main office and five branch offices.

Application Architecture

The company’ s primary application is a single monolithic retirement fund management system based on ASP.NE T web forms that use logic written in V8.NET. Some new sections of the application are written in C#.



Variations of the application are created for individual customers. Currently, there are more than 80 have code branches in the application’s code base.



The application was developed by using Microsoft Visual Studio. Source code is stored in Team Foundation Server (TFS) in the main office. The branch offices access of the source code by using TFS proxy servers.



Architectural Issues

Litware focuses on writing new code for customers. No resources are provided to refactor or remove existing code. Changes to the code base take a long time, AS dependencies are not obvious to individual developers.

Merge operations of the code often take months and involve many developers. Code merging frequently introduces bugs that are difficult to locate and resolve.

Customers report that ownership costs of the retirement fund management system increase continually. The need to merge unrelated code makes even minor code changes expensive.



Requirements

Planned Changes

Litware plans to develop a new suite of applications for investment planning. The investment planning Applications will require only minor integration with the easting retirement fund management system.

The investment planning applications suite will include one multi-tier web application and two iOS mobile applications. One mobile application will be used by employees; the other will be used by customers.

Litware plans to move to a more agile development methodology. Shared code will be extracted into a series of package.

Litware has started an internal cloud transformation process and plans to use cloud based services whenever suitable.

Litware wants to become proactive m detecting failures, rather than always waning for customer bug reports.



Technical Requirements

The company's investment planning applications suite must meet the following technical requirements:

• New incoming connections through the firewall must be minimized.

• Members of a group named Developers must be able to install packages.

• The principle of least privilege must be used for all permission assignments

• A branching strategy that supports developing new functionality in isolation must be used.

• Members of a group named Team leaders must be able to create new packages and edit the permissions of package feeds

• Visual Studio App Center must be used to centralize the reporting of mobile application crashes and device types in use.

• By default, all App Center must be used to centralize the reporting of mobile application crashes and device types in use.

• Code quality and release quality are critical. During release, deployments must not proceed between stages if any active bugs are logged against the release.

• The mobile applications must be able to call the share pricing service of the existing retirement fund management system. Until the system is upgraded, the service will only support basic authentication over HUPS.

• The required operating system configuration tor the test servers changes weekly. Azure Automation State Configuration must be used to ensure that the operating system on each test servers configured the same way when the servers are created and checked periodically.



Current Technical

The test servers are configured correctly when first deployed, but they experience configuration drift over time. Azure Automation State Configuration fails to correct the configurations.

Azure Automation State Configuration nodes are registered by using the following command.







DRAG DROP

Which package feed access levels should be assigned to the Developers and Team Leaders groups for the investment planning applications suite? To answer, drag the appropriate access levels to the correct groups. Each access level may be used once, more than once, or not at all. You may need to drag the split bar between panes or scroll to view content. NOTE: Each correct selection is worth one point.

2. HOTSPOT

How should you confrere the release retention policy for the investment planning depletions suite? To answer, select the appropriate options in the answer area. NOTE: Each correct selection is worth one point.

3. You have a project in Azure DevOps.

You plan to deploy a self-hosted agent by using an unattended configuration script.

Which two values should you define in the configuration script? Each correct answer presents part of the solution. NOTE: Each correct selection is worth one point.

4. HOTSPOT

You need to configure a cloud service to store the secrets required by the mobile applications to call the share.

What should you include in the solution? To answer, select the appropriate options m the answer area. NOTE: Each correct selection is worth one point.

5. You have Azure Pipelines and GitHub integrated as a source code repository.

The build pipeline has continuous integration enabled.

You plan to trigger an automated build whenever code changes are committed to the repository.

You need to ensure that the system will wait until a build completes before queuing another build.

What should you implement?

6. What should you use to implement the code quality restriction on the release pipeline for the investment planning applications suite?

7. HOTSPOT

How should you complete the code to initialize App Center in the mobile application? To answer, select the appropriate options in the answer area. NOTE: Each correct selection a worth one point.

8. Which branching strategy should you recommend for the investment planning applications suite?

9. HOTSPOT

Where should the build and release agents for the investment planning application suite run? To answer, select the appropriate options in the answer area. NOTE: Each correct selection is worth one point.

10. HOTSPOT

How should you configure the release retention policy for the investment planning applications suite? To answer, select the appropriate options in the answer area. NOTE: Each correct selection is worth one point.

11. You are using GitHub as a source code repository.

You create a client-side Git hook on the commit-msg event. The hook requires that each commit message contain a custom work item tag.

You need to make a commit that does not have a work item tag.

Which git commit parameter should you use?

12. HOTSPOT

HOTSPOT

You are using PowerShell to administer Azure Log Analytics workspaces.

You need to list the available workspaces and their properties.

How should you complete the command? To answer, select the appropriate options in the answer area. NOTE: Each correct selection is worth one point.

13. HOTSPOT

You have an Azure virtual machine named VM1 that runs Linux.

You plan to deploy the Desired State Configuration (DSC) extension to VM1.

You need to grant the Log Analytics agent the appropriate directory permissions.

How should you complete the command? To answer, select the appropriate options in the answer area. NOTE: Each correct selection is worth one point.

14. To resolve the current technical issue, what should you do to the Register-AzureRmAutomationDscNode command?

15. Topic 2, Contoso Case Study: 2



Overview

Existing Environment

Contoso, Ltd. is a manufacturing company that has a main office in Chicago.

Contoso plans to improve its IT development and operations processes by implementing Azure DevOps principles. Contoso has an Azure subscription and creates an Azure DevOps organization.



The Azure DevOps organization includes:

• The Docker extension

• A deployment pool named Pool7 that contains 10 Azure virtual machines that run Windows Server 2016

The Azure subscription contains an Azure Automation account.



Planned Changes

Contoso plans to create projects in Azure DevOps as shown in the following table.







Technical Requirements

Contoso identities the following technical requirements:

• Implement build agents rot Project 1.

• Whenever possible, use Azure resources

• Avoid using deprecated technologies

• Implement a code flow strategy for Project2 that will:

• Enable Team 2 to submit pull requests for Project2.

• Enable Team 2 to work independently on changes to a copy of Project?

• Ensure that any intermediary changes performed by Tram2 on a copy of Project2 will be subject to the same restrictions as the ones defied in the build policy of Project2.

• Whenever possible. Implement automation and minimize administrative effort.

• Implement Protect3, Project5, Project6, and Project7 based on the planned changes.

• Implement Project4 and configure the project to push Docker images to Azure Container Reentry.



DRAG DROP

You need to implement Project6.

Which three actions should you perform in sequence? To answer, move the appropriate actions from the list of actions to the answer area and arrange them m the correct order.

16. DRAG DROP

You need to recommend a procedure to implement the build agent for Project1.

Which three actions should you recommend be performed in sequence? To answer, move the appropriate actions from the list of actions to the answer area and arrange them in the correct order.

17. In Azure DevOps, you create Project3.

You need to meet the requirements of the project.

What should you do first?

18. DRAG DROP

You need to implement the code flow strategy for Project2 in Azure DevOps.

Which three actions should you perform in sequence? To answer, move the appropriate actions from the list of actions to the answer area and arrange in the correct order.

19. You need to implement Project4.

What should you do first?

20. DRAG DROP

You need to configure Azure Automation for the computers in Pool7.

Which three actions should you perform in sequence? To answer, move the appropriate actions from the list of actions to the answer area and arrange them m the correct order.

21. DRAG DROP

You need to configure Azure Automation for the computer in Group7.

Which three actions should you perform in sequence? To answer, move the appropriate actions from the list of actions to the answer area and arrange them in the correct order.

22. DRAG DROP

You need to implement the code flow strategy for Project2 in Azure DevOps.

Which three actions should you perform in sequence? To answer, move the appropriate actions from the list of actions to the answer area and arrange them in the correct order.

23. HOTSPOT

How should you configure the filters for the Project5 trigger? To answer, select the appropriate option in the answer area. NOTE: Each correct selection is worth one point.

24. You add the virtual machines as managed nodes in Azure Automation State Configuration.

You need to configure the computer in Group7.

What should you do?

25. Topic 3, Woodgrove bank



This is a case study. Case studies are not timed separately. You can use as much exam time as you would like to complete each case. However, there may be additional case studies and sections on this exam. You must manage your time to ensure that you are able to complete all questions included on this exam in the time provided.



To answer the questions included in a case study, you will need to reference information that is provided in the case study. Case studies might contain exhibits and other resources that provide more information about the scenario that is described in the case study. Each question is independent of the other questions in this case study.



At the end of this case study, a review screen will appear. This screen allows you to review your answers and to make changes before you move to the next section of the exam. After you begin a new section, you cannot return to this section.



To start the case study

To display the first question in this case study, click the Next button. Use the buttons in the left pane to explore the content of the case study before you answer the questions. Clicking these buttons displays information such as business requirements, existing environment, and problem statements. If the case study has an All Information tab, note that the information displayed is identical to the information displayed on the subsequent tabs. When you are ready to answer a question, click the Question button to return to the question.

Overview

General Overview

Woodgrove Bank is a financial services company that has a main office in the United Kingdom.



Technical Requirements and Planned Changes

Planned Changes

Woodgrove Bank plans to implement the following project management changes:

✑ Implement Azure DevOps for project tracking.

✑ Centralize source code control in private GitHub repositories.

✑ Implement Azure Pipelines for build pipelines and release pipelines.



Woodgrove Bank plans to implement the following changes to the identity environment:

✑ Deploy an Azure AD tenant named woodgrovebank.com.

✑ Sync the Active Directory domain to Azure AD.

✑ Configure App1 to use a service principal.

✑ Integrate GitHub with Azure AD.



Woodgrove Bank plans to implement the following changes to the core apps:

✑ Migrate App1 to ASP.NET Core.

✑ Integrate Azure Pipelines and the third-party build tool used to develop App2.



Woodgrove Bank plans to implement the following changes to the DevOps environment:

✑ Deploy App1 to Azure App Service.

✑ Implement source control for the DB1 schema.

✑ Migrate all the source code from TFS1 to GitHub.

✑ Deploy App2 to an Azure virtual machine named VM1.

✑ Merge the POC branch into the GitHub default branch.

✑ Implement an Azure DevOps dashboard for stakeholders to monitor development progress.



Technical Requirements

Woodgrove Bank identifies the following technical requirements:

✑ The initial databases for new environments must contain both schema and reference data.

✑ An Azure Monitor alert for VM1 must be configured to meet the following requirements:

✑ The commit history of the POC branch must replace the history of the default branch.

✑ The Azure DevOps dashboard must display the metrics shown in the following table.









✑ Access to Azure DevOps must be restricted to specific IP addresses.

✑ Page load times for App1 must be captured and monitored.

✑ Administrative effort must be minimized.



HOTSPOT

You need to configure the alert for VM1. The solution must meet the technical requirements.

Which two settings should you configure? To answer, select the appropriate settings in the answer area. NOTE: Each correct selection is worth one point.

26. You need to perform the GitHub code migration. The solution must support the planned changes for the DevOps environment.

What should you use?

27. DRAG DROP

You need to configure authentication for App1. The solution must support the planned changes.

Which three actions should you perform in sequence? To answer, move all actions from the list of actions to the answer area and arrange them in the correct order.

28. DRAG DROP

You need to replace the existing DevOps tools to support the planned changes.

What should you use? To answer, drag the appropriate tools to the correct targets. Each tool may be used once, more than once, or not at all. You may need to drag the split bar between panes or scroll to view content. NOTE: Each correct selection is worth one point.

29. You need to configure Azure Pipelines to control App2 builds.

Which authentication method should you use?

30. DRAG DROP

You are configuring the Azure DevOps dashboard. The solution must meet the technical requirements.

Which widget should you use for each metric? To answer, drag the appropriate widgets to the correct metrics. Each widget may be used once, more than once, or not at all. You may need to drag the split bar between panes or scroll to view content. NOTE: Each correct selection is worth one point.

31. You need to meet the technical requirements for controlling access to Azure DevOps.

What should you use?

32. Topic 4, Mix Questions Set



Your company implements an Agile development methodology.

You plan to implement retrospectives at the end of each sprint.

Which three questions should you include? Each correct answer presents part of the solution. NOTE: Each correct selection is worth one point.

33. 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?

34. Your company builds a multi tier web application.

>You use Azure DevOps and host the production application on Azure virtual machines.

Your team prepares an Azure Resource Manager template of the virtual machine that you mil use to test new features.

You need to create a staging environment in Azure that meets the following requirements:

• Minimizes the cost of Azure hosting

• Provisions the virtual machines automatically

• Use* the custom Azure Resource Manager template to provision the virtual machines

What should you do?

35. DRAG DROP

You are building an application that has the following assets:

✑ Source code

✑ Logs from automated tests and builds

✑ Large and frequently updated binary assets

✑ A common library used by multiple applications

Where should you store each asset? To answer, drag the appropriate Azure services to the correct assets. Each service may be used once. You may need to drag the split bar between panes or scroll to view content. NOTE: Each correct selection is worth one point.

36. DRAG DROP

You are defining release strategies for two applications as shown in the following table.





Which release strategy should you use for each application? To answer, drag the appropriate release strategies to the correct applications. Each release strategy may be used once, more than once, or not at all. You may need to drag the split bar between panes or scroll to view content. NOTE: Each correct selection is worth one point.

37. 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?

38. Your company hosts a web application in Azure. The company uses Azure Pipelines for the build and release management of the application.

Stakeholders report that the past few releases have negatively affected system performance.

You configure alerts in Azure Monitor.

You need to ensure that new releases are only deployed to production if the releases meet defined performance baseline criteria in the staging environment first.

What should you use to prevent the deployment of releases that fall to meet the performance baseline?

39. Your company has a project in Azure DevOps for a new application. The application will be deployed to several Azure virtual machines that run Windows Server 2016.

You need to recommend a deployment strategy for the virtual machines.

The strategy must meet the following requirements:

• Ensure that the virtual machines maintain a consistent configuration.

• Minimize administrative effort to configure the virtual machines What should you include in the recommendation?

40. You are automating the testing process for your company.

You need to automate UI testing of a web application.

Which framework should you use?

41. You use Azure SQL Database Intelligent Insights and Azure Application Insights foe monitoring.

You need to write ad-hoc Queries against the monitoring data.

Which Query language should you use?

42. Your development team is building a new web solution by using the Microsoft Visual Studio integrated

development environment (IDE).

You need to make a custom package available to all the developers. The package must be managed centrally,

and the latest version must be available for consumption in Visual Studio automatically.

Which three actions should you perform? Each correct answer presents part of the solution. NOTE: Each correct selection is worth one point.

43. 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. Some question sets might have more than one correct solution, while others might not have a correct solution.

After you answer a question in this section, you will NOT be able to return to it. As a result, these questions will not appear in the review screen.

You manage a project in Azure DevOps.

You need to prevent the configuration of the project from changing over time.

Solution: Implement Continuous Assurance for the project.

Does this meet the goal?

44. CORRECT TEXT

You need to ensure that an Azure web app named az400-9940427-main supports rolling upgrades. The solution must ensure that only 10 percent of users who connect to az400-9940427-main use update versions of the app.

The solution must minimize administrative effort.

To complete this task, sign in to the Microsoft Azure portal.

45. You are designing the development process for your company.

You need to recommend a solution for continuous inspection of the company’s code base to locate common code patterns that are known to be problematic.

What should you include in the recommendation?

46. CORRECT TEXT

You have an Azure function hosted in an App Service plan named az400-9940427-func1.

You need to configure az400-9940427-func1 to upgrade the functions automatically whenever new code is committed to the master branch of https://github.com/Azure-Samples/functions-quickstart.

To complete this task, sign in to the Microsoft Azure portal.

47. DRAG DROP

Your company has four projects.

The version control requirements for each project are shown in the following table.





You plan to use Azure Repos for all the projects.

Which version control system should you use for each project? To answer, drag the appropriate version control systems to the correct projects. Each version control system may be used once, more than once, or not at all. You may need to drag the split bar between panes or scroll to view content. NOTE: Each correct selection is worth one point.

48. DRAG DROP

Your company has a project in Azure DevOps.

You plan to create a release pipeline that will deploy resources by using Azure Resource Manager templates. The templates will reference secrets stored in Azure Key Vault.

You need to recommend a solution for accessing the secrets stored in the key vault during deployments. The solution must use the principle of least privilege.

What should you include in the recommendation? To answer, drag the appropriate configurations to the correct targets. Each configuration may be used once, more than once, or not at all. You may need to drag the split bar between panes or scroll to view content. NOTE: Each correct selection is worth one point.

49. 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. Some question sets might have more than one correct solution, while others might not have a correct solution.

After you answer a question in this section, you will NOT be able to return to it. As a result, these questions will not appear in the review screen.

You have an Azure DevOps organization named Contoso and an Azure subscription. The subscription contains an Azure virtual machine scale set named VMSS1 that is configured

for autoscaling.

You have a project in Azure DevOps named Project1. Project1 is used to build a web app named App1 and deploy App1 to VMSS1.

You need to ensure that an email alert is generated whenever VMSS1 scales in or out.

Solution: From Azure DevOps, configure the Service hooks settings for Project1.

Does this meet the goal?

50. Your company uses Azure DevOps to manage the build and release processes for applications.

You use a Git repository for applications source control.

You plan to create a new branch from an existing pull request. Later, you plan to merge the new branch and the target branch of the pull request.

You need to use a pull request action to create the new branch. The solution must ensure that the branch uses only a portion of the code in the pull request.

Which pull request action should you use?