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Exam Overview
Exam Code AZ-400
Exam Name Designing and Implementing Microsoft DevOps Solutions
Vendor Microsoft
Total Questions 567
Last Updated 26-Oct, 2026
Free AZ-400 Questions Get Premium Access
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Free AZ-400 Practice Questions

Explore 4 free practice questions for the Microsoft AZ-400 exam and review the answers and explanations to support your preparation.

  1. Question 1

    Drag & Drop

    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

    Show Answer & Explanation Hide Answer & Explanation

    Correct Answer


    Explanation

    Scenario: Visual Studio App Center must be used to centralize the reporting of mobile application
    crashes and device types in use.
    In order to use App Center, you need to opt in to the service(s) that you want to use, meaning by
    default no services are started and you will have to explicitly call each of them when starting the SDK.
    Insert the following line to start the SDK in your app's App Delete class in the
    didFinishLaunchingWithOptions method.
    MSAppCenter.start("{Your App Secret}", withServices: [MSAnalytics.self, MSCrashes.self])
    Reference:https://docs.microsoft.com/en-us/appcenter/sdk/getting-started/ios

  2. Question 2

    Single answer

    To resolve the current technical issue, what should you do to theRegister-
    AzureRmAutomationDscNodecommand?

    • Option A:
      Change the value of theConfigurationModeparameter.
      Correct
    • Option B:
      Replace theRegister-AzureRmAutomationDscNodecmdlet withRegister-
      AzureRmAutomationScheduledRunbook

      Correct
    • Option C:
      Add theAllowModuleOverwriteparameter.

      Correct
    • Option D:
      Add theDefaultProfileparameter.
      Correct
    Show Answer & Explanation Hide Answer & Explanation

    Correct Answer: A

    Explanation

    Change the ConfigurationMode parameter from ApplyOnly to ApplyAndAutocorrect.
    The Register-AzureRmAutomationDscNode cmdlet registers an Azure virtual machine as an APS
    Desired State Configuration (DSC) node in an Azure Automation account.
    Scenario: Current Technical Issue
    The test servers are configured correctly when first deployed, but they experience configuration drift
    over time. Azure AutomationState Configuration fails to correct the configurations.
    Azure Automation State Configuration nodes are registered by using the following command.


  3. Question 3

    Drag & Drop

    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 thesolution? To answer, select the appropriate options m the answer
    area, NOTE: Each correct selection is worth one point.

    Show Answer & Explanation Hide Answer & Explanation

    Correct Answer


    Explanation


    Every request made against a storage service must be authorized, unless the request is for a blob or
    container resource that has been made available for public or signed access. One option for
    authorizing a request is by using Shared Key.
    Scenario: 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 HTTPS.
    The investment planning applications suite will include one multi-tier web application and two iOS
    mobile application. One mobile application will be used by employees; the other will be used by
    customers.
    Reference:https://docs.microsoft.com/en-us/rest/api/storageservices/authorize-with-shared-key

  4. Question 4

    Drag & Drop

    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: Eachcorrect selection is worth one point.

    Show Answer & Explanation Hide Answer & Explanation

    Correct Answer


    Explanation


    Every request made against a storage service must be authorized, unless the request is for a blob or
    container resource that has been made available for public or signed access. One option for
    authorizing a request is by using Shared Key.
    Scenario: 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 HTTPS.
    The investment planning applications suite will include one multi-tier web application and two iOS
    mobile application. One mobile application will be used by employees; the other will be used by
    customers. Scenario: 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 HTTPS.
    The investment planning applications suite will include one multi-tier web application and two iOS
    mobile application. One mobile application will be used by employees; the other will be used by
    customers.
    Reference:https://docs.microsoft.com/en-us/rest/api/storageservices/authorize-with-shared-key