You have a Microsoft ASP.NET Core web app in Azure that is accessed worldwide.
You need to run a URL ping test once every five minutes and create an alert when the web app is unavailable from specific Azure regions. The solution must minimize development time.
What should you do?

• A.Create an Azure Application Insights availability test and alert.
• B.Create an Azure Service Health alert for the specific regions.
• C.Create an Azure Monitor Availability metric and alert
• D.Write an Azure function and deploy the function to the specific regions.

Correct Answer: A

Explanation
There are three types of Application Insights availability tests:
* URL ping test: a simple test that you can create in the Azure portal.
* Multi-step web test
* Custom Track Availability Tests
Note: After you've deployed your web app/website, you can set up recurring tests to monitor availability and responsiveness. Azure Application Insights sends web requests to your application at regular intervals from points around the world. It can alert you if your application isn't responding, or if it responds too slowly.
You can set up availability tests for any HTTP or HTTPS endpoint that is accessible from the public internet.
You don't have to make any changes to the website you're testing. In fact, it doesn't even have to be a site you own. You can test the availability of a REST API that your service depends on.
Reference:
https://docs.microsoft.com/en-us/azure/azure-monitor/app/monitor-web-app-availability#create-a-url-ping-test
Topic 1, Case Study: 1Overview
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.

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You have an Azure DevOps organization named Contoso and an Azure subscription.
You use Azure DevOps to build and deploy a web app named App1. Azure Monitor is configured to generate an email notification in response to alerts generated whenever App1 generates a server-side error.
You need to receive notifications in Microsoft Teams whenever an Azure Monitor alert is generated.
Which two actions should you perform? Each correct answer presents part of the solution.
NOTE: Each correct selection is worth one point.

• A.Create an Azure logic app that has an HTTP request trigger.
• B.Modify the Diagnostics settings in Azure Monitor.
• C.Modify an action group in Azure Monitor.
• D.Create an Azure Monitor workbook.
• E.Create an Azure logic app that has an Azure DevOps trigger.

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Your company has an on-premises Bitbucket Server that is used for Git-based source control. The server is protected by a firewall that blocks inbound Internet traffic.
You plan to use Azure DevOps to manage the build and release processes.
Which two components are required to integrate Azure DevOps and Bitbucket? Each correct answer presents part of the solution.
NOTE: Each correct selection is worth one point.

• A.a deployment group
• B.a Microsoft-hosted agent
• C.service hooks
• D.a self-hosted agent
• E.an External Git service connection

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You have a project in Azure DevOps that uses packages from multiple public feeds. Some of the feeds are unreliable.
You need to consolidate the packages into a single feed.
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.

Correct Answer:

Explanation:
Step 1: Create a NuGet package.
NuGet and Maven are public package managers that support multiple feeds.
Step 2: Create an Azure Artifacts feed that uses upstream sources
If you want to use packages from multiple feeds, use upstream sources to bring packages from multiple feeds together into a single feed.
Step 3: Create a Micrtosoft Visual Studio project that includes all the packages Consume NuGet packages from upstream sources: Now you can open Visual Studio and install packages from the upstream sources you just configured.
Reference:
https://docs.microsoft.com/en-us/azure/devops/artifacts/how-to/set-up-upstream-sources

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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.

Correct Answer:

Set up staging environments in Azure App Service
1. Open Microsoft Azure Portal
2. Log into your Azure account, select your app's resource page, in the left pane, select Deployment slots > Add Slot.

3. In the Add a slot dialog box, give the slot a name, and select whether to clone an app configuration from another deployment slot. Select Add to continue.

4. After the slot is added, select Close to close the dialog box. The new slot is now shown on the Deployment slots page. By default, Traffic % is set to 0 for the new slot, with all customer traffic routed to the production slot.
5. Select the new deployment slot to open that slot's resource page.

6. Change TRAFFIC % to 10
Reference:
https://docs.microsoft.com/en-us/azure/app-service/deploy-staging-slots

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