Question 25

- (Exam Topic 2)
You use Azure Pipelines lo manage the build and deployment of apps.
You are planning the release strategies for a new app. You need to choose strategies for the following scenarios:
• Releases will be made available to users who are grouped by their tolerance for software faults.
• Code will be deployed to enable functionality that will be available in later releases of the app.
• When a new release occurs, the existing deployment will remain active to minimize recovery time if a return to the previous version is required.
AZ-400 dumps exhibit
Solution:
Box 1: Progressive exposure
Continuous Delivery may sequence multiple deployment “rings” for progressive exposure (also known as “controlling the blast radius”). Progressive exposure groups users who get to try new releases to monitor their experience in “rings.” The first deployment ring is often a “canary” used to test new versions in production before a broader rollout. CD automates deployment from one ring to the next and may optionally depend on an approval step, in which a decision maker signs off on the changes electronically. CD may create an auditable record of the approval in order to satisfy regulatory procedures or other control objectives.
AZ-400 dumps exhibit
Box 2: Feature flags
Feature flags support a customer-first DevOps mindset, to enable (expose) and disable (hide) features in a solution, even before they are complete and ready for release.
Box 3: Blue/green
Blue/green deployments which means that instead of replacing the previous version (here we refer to this version as blue), we bring up the new version (here referred to as the green version) next to the existing version, but not expose it to the actual users right away. On the condition of having successfully validated that the green version works correctly, we will promote this version to the public version by changing the routing configuration without downtime. If something is wrong with the green version we can revert back without users every noticing interruptions.
Reference:
https://docs.microsoft.com/en-us/azure/devops/learn/what-is-continuous-delivery https://docs.microsoft.com/en-us/azure/devops/migrate/phase-features-with-feature-flags
https://medium.com/@denniszielke/continuous-kubernetes-blue-green-deployments-on-azure-using-nginx-appg

Does this meet the goal?

Correct Answer:A

Question 26

- (Exam Topic 2)
You plan to create alerts that will be triggered based on the page load performance of a home page. You have the Application Insights log query shown in the following exhibit.
AZ-400 dumps exhibit
Use the drop-down menus to select the answer choice that completes each statement based on the information presented in the graphic.
NOTE: Each correct selection is worth one point.
AZ-400 dumps exhibit
Solution:
Box 1: percentile_duration_95
Box 2: success For example – requests
| project name, url, success
| where success == "False"
This will return all the failed requests in my App Insights within the specified time range. Reference:
https://devblogs.microsoft.com/premier-developer/alerts-based-on-analytics-query-using-custom-log-search/

Does this meet the goal?

Correct Answer:A

Question 27

- (Exam Topic 2)
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 integrate a cloud-hosted Jenkins server and a new Azure DevOps deployment.
You need Azure DevOps to send a notification to Jenkins when a developer commits changes to a branch in Azure Repos.
Solution: You create a service hook subscription that uses the build completed event Does this meet the goal?

Correct Answer:B
You can create a service hook for Azure DevOps Services and TFS with Jenkins.
However, the service subscription event should use the code pushed event, is triggered when the code is pushed to a Git repository.

Question 28

- (Exam Topic 2)
You have a private project in Azure DevOps and two users named User1 and User2. You need to add User1 and User2 to groups to meet the following requirements:
AZ-400 dumps exhibit User1 must be able to create a code wiki.
AZ-400 dumps exhibit User2 must be able to edit wiki pages.
AZ-400 dumps exhibit The solution must use the principle of least privilege.
To which group should you add each user? To answer, drag the appropriate groups to the correct users. Each group 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.
AZ-400 dumps exhibit
Solution:
User1: Project Administrators
You must have the permission Create Repository to publish code as wiki. By default, this permission is set for members of the Project Administrators group.
User2: Contributors
Anyone who is a member of the Contributors security group can add or edit wiki pages. Anyone with access to the team project, including stakeholders, can view the wiki. Reference:
https://docs.microsoft.com/en-us/azure/devops/project/wiki/wiki-create-repo

Does this meet the goal?

Correct Answer:A

Question 29

- (Exam Topic 2)
Your company has four projects. The version control requirements for each project are shown in the following table.
AZ-400 dumps exhibit
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.
AZ-400 dumps exhibit
Solution:
* 1 -> TFVS Refer :
https://docs.microsoft.com/en-us/azure/devops/repos/tfvc/control-access-team-foundation-version-control?view=
* 2 -> TFVS Refer :
https://docs.microsoft.com/en-us/azure/devops/repos/tfvc/add-check-policies?view=azure-devops
* 3 -> Git Refer :
https://docs.microsoft.com/en-us/azure/devops/repos/git/share-your-code-in-git-xcode?view=azure-devops
* 4 -> TFVS Refer
:https://docs.microsoft.com/en-us/azure/devops/organizations/security/permissions?view=azure-devops#tfvc

Does this meet the goal?

Correct Answer:A

Question 30

- (Exam Topic 2)
Your company is building a mobile app that targets Android devices and OS 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?

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

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