Microsoft AZ-400 Exam (page: 6)
Microsoft Designing and Implementing DevOps Solutions
Updated on: 12-Jan-2026

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Your company is building a mobile app that targets Android and iOS devices. Your team uses Azure DevOps to manage all work items and release cycles. You need to recommend a solution to perform the following tasks:
-Collect crash reports for issue analysis.
-Distribute beta releases to your testers.
-Get user feedback on the functionality of new apps.

What should you include in the recommendation?

  1. the Microsoft Test & Feedback extension
  2. Microsoft Visual Studio App Center integration
  3. Azure Application Insights widgets
  4. Jenkins integration

Answer(s): A

Explanation:

The "Exploratory Testing" extension is now "Test & Feedback" and is now Generally Available.

Anyone can now test web apps and give feedback, all directly from the browser on any platform: Windows, Mac, or Linux. Available for Google Chrome and Mozilla Firefox (required version 50.0 or above) currently. Support for Microsoft Edge is in the pipeline and will be enabled once Edge moves to a Chromium-compatible web platform.


Reference:

https://marketplace.visualstudio.com/items?itemName=ms.vss-exploratorytesting-web



You need to consider the underlined segment to establish whether it is accurate.
When moving to Azure DevOps, JIRA must be replaced with the build pipelines Azure DevOps service. Select ‘No adjustment required’ if the underlined segment is accurate. If the underlined segment is inaccurate, select the accurate option.

  1. No adjustment required.
  2. repos
  3. release pipelines
  4. boards

Answer(s): C

Explanation:

Atlassian's Jira Software is a popular application that helps teams to plan, track, and manage software releases, whereas Octopus Deploy helps teams automate their development and operations processes in a fast, repeatable, and reliable manner. Together, they enable teams to get better end-to-end visibility into their software pipelines from idea to production.


Reference:

https://octopus.com/blog/octopus-jira-integration
https://www.azuredevopslabs.com/labs/vstsextend/jenkins/



You have an Azure DevOps project named Project1 and an Azure subscription named Sub1. Sub1 contains an Azure virtual machine scale set named VMSS1. VMSS1 hosts a web application named WebApp1. WebApp1 uses stateful sessions.

The WebApp1 installation is managed by using the Custom Script extension. The script resides in an Azure Storage account named sa1. You plan to make a minor change to a UI element of WebApp1 and to gather user feedback about the change.

You need to implement limited user testing for the new version of WebApp1 on VMSS1. Which three actions should you perform? Each correct answer presents part of the solution. NOTE: Each correct selection is worth one point.

  1. Modify the load balancer settings of VMSS1.
  2. Redeploy VMSS1.
  3. Upload a custom script file to sa1.
  4. Modify the Custom Script extension settings of VMSS1.
  5. Update the configuration of a virtual machine in VMSS1.

Answer(s): B,D,E

Explanation:

The correct answers are B, D, and E

B) Redeploy VMSS1. This will create new virtual machines with the updated code.
D) Modify the Custom Script extension settings of VMSS1. This will point the extension to the new code.
E) Update the configuration of a virtual machine in VMSS1. This can be used to test the new code on a single virtual machine before redeploying the entire scale set.
A) Modify the load balancer settings of VMSS1. This will not update the code on the virtual machines.
C) Upload a custom script file to sa1. This is not necessary if the code is already in sa1.



You scan a Node.js application using WhiteSource Bolt.
The scan finds numerous libraries with invalid licenses, but are only used during development. You have to make sure that only production dependencies are scanned by WhiteSource Bolt. Which of the following is a command you should run?

  1. npm edit
  2. npm publish
  3. npm install
  4. npm update

Answer(s): C


Reference:

https://whitesource.atlassian.net/wiki/spaces/WD/pages/34209870/NPM+Plugin https://nodejs.org/en/knowledge/getting-started/npm/what-is-the-file-package-json



SIMULATION
You need to create a notification if the peak average response time of an Azure web app named az400-9940427-main is more than five seconds when evaluated during a five-minute period. The notification must trigger the “https://contoso.com/notify” webhook.
To complete this task, sign in to the Microsoft Azure portal.

  1. See Explanation section for answer.

Answer(s): A

Explanation:

1. Open Microsoft Azure Portal
2. Log into your Azure account and go to App Service and look under Monitoring then you will see Alert.
3. Select Add an alert rule
4. Configure the alert rule as per below and click Ok. Source: Alert on Metrics
Resource Group: az400-9940427-main Resource: az400-9940427-main Threshold: 5
Period: Over the last 5 minutes Webhook: https://contoso.com/notify


Reference:

https://azure.microsoft.com/es-es/blog/webhooks-for-azure-alerts/



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