AZ-400 Free Practice Test

- (Exam Topic 1)
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.

Solution:
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 AppDelegate class in the didFinishLaunchingWithOptions method.
MSAppCenter.start("{Your App Secret}", withServices: [MSAnalytics.self, MSCrashes.self]) References: https://docs.microsoft.com/en-us/appcenter/sdk/getting-started/ios

Does this meet the goal?

1. A. Yes
2. B. No

Correct Answer: A

- (Exam Topic 4)
You are planning projects for three customers. Each customer’s preferred process for work items is shown in the following table.

The customers all plan to use Azure DevOps for work item management.
Which work item process should you use for each customer? To answer, drag the appropriate work item process to the correct customers. Each work item process 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.

Solution:
Box 1: Scrum
Choose Scrum when your team practices Scrum. This process works great if you want to track product backlog items (PBIs) and bugs on the Kanban board, or break PBIs and bugs down into tasks on the taskboard.
Box 2: Agile
Choose Agile when your team uses Agile planning methods, including Scrum, and tracks development and test activities separately. This process works great if you want to track user stories and (optionally) bugs on the Kanban board, or track bugs and tasks on the taskboard.
Box 3: CMMI
Choose CMMI when your team follows more formal project methods that require a framework for process improvement and an auditable record of decisions. With this process, you can track requirements, change requests, risks, and reviews.

Does this meet the goal?

1. A. Yes
2. B. No

Correct Answer: A

- (Exam Topic 4)
You provision an Azure Kubernetes Service (AKS) cluster that has RBAC enabled. You have a Helm chart for a client application.
You need to configure Helm and Tiller on the cluster and install the chart.
Which three commands should you recommend be run in sequence? To answer, move the appropriate commands from the list of commands to the answer area and arrange them in the correct order.

Solution:
Step 1: Kubectl create
You can add a service account to Tiller using the --service-account flag while you’re configuring Helm (step 2 below). As a prerequisite, you’ll have to create a role binding which specifies a role and a service account name that have been set up in advance.
Example: Service account with cluster-admin role
$ kubectl create -f rbac-config.yaml serviceaccount "tiller" created clusterrolebinding "tiller" created
$ helm init --service-account tiller Step 2: helm init
To deploy a basic Tiller into an AKS cluster, use the helm init command. Step 3: helm install
To install charts with Helm, use the helm install command and specify the name of the chart to install. References:
https://docs.microsoft.com/en-us/azure/aks/kubernetes-helm https://docs.helm.sh/using_helm/#tiller-namespaces-and-rbac

Does this meet the goal?

1. A. Yes
2. B. No

Correct Answer: A

- (Exam Topic 4)
You have an Azure DevOps project that contains a release pipeline and a Git repository. When a new code revision is committed to the repository, a build and release is triggered.
You need to ensure that release information for the pipeline is added automatically to the work items associated to the Git commit.
What should you do?

1. A. Modify the Integrations options for the pipeline.
2. B. Modify the post-deployment conditions for the last stage of the pipeline.
3. C. Add an agentless job to the pipeline.
4. D. Modify the service hooks for the project.

Correct Answer: D
Service hooks in Azure DevOps allow you to trigger actions in other tools based on events that occur in your Azure DevOps project. To automatically add release information to work items associated with a Git commit, you would need to configure a service hook that listens for commit events in your Git repository, and then sends the release information to the appropriate work items.
Here's the steps you can follow to set up a service hook for this purpose:
In your Azure DevOps project, navigate to the project settings by clicking on the gear icon in the top right corner of the page.
Select "Service Hooks" from the left-hand menu.
Click on the "New Subscription" button to create a new service hook.
In the "Event" drop-down menu, select "Code pushed" to trigger the service hook when a new code revision is committed to the repository.
In the "Actions" section, select the action that you want to take place when the service hook is triggered.
For example, you might use the "Link work items to commits" action to automatically associate work items with the relevant commits.
Configure the remaining settings as needed, and then click on the "Create" button to create the service hook.
You can find more information on Service hooks in Azure DevOps by following this link https://docs.microsoft.com/en-us/azure/devops/service-hooks/overview?view=azure-devops

- (Exam Topic 4)
You plan to create an image that will contain a .NET Core application.
You have a Dockerfile file that contains the following code. (Line numbers are included for reference only.)

You need to ensure that the image is as small as possible when the image is built. Which line should you modify in the file?

1. A. 1
2. B. 3
3. C. 4
4. D. 7

Correct Answer: C
https://github.com/dotnet/dotnet-docker/blob/master/samples/dotnetapp/README.md