AZ-400 Online Practice Questions and Answers

Correct Answer:

Box 1: readinessProbe:

For containerized applications that serve traffic, you might want to verify that your container is ready to handle incoming requests. Azure Container Instances supports readiness probes to include configurations so that your container can't be

accessed under certain conditions.

Incorrect Answers:

livenessProbe: Containerized applications may run for extended periods of time, resulting in broken states that may need to be repaired by restarting the container. Azure Container Instances supports liveness probes so that you can

configure your containers within your container group to restart if critical functionality is not working.

Box 2: periodSeconds: 15

The periodSeconds property designates the readiness command should execute every 15 seconds.

Reference:

https://docs.microsoft.com/en-us/azure/container-instances/container-instances-readiness-probe

Correct Answer:

Step 1: Create a YAML file.

If your AKS cluster is RBAC-enabled, you must create a service account and role binding for use with Tiller. To create a service account and role binding, create a file named rbac-virtual-kubelet.yaml

Step 2: Run kubectl apply.

Apply the service account and binding with kubectl apply and specify your rbac-virtual-kubelet.yaml file.

Step 3: Run helm init.

Configure Helm to use the tiller service account:

helm init --service-account tiller

You can now continue to installing the Virtual Kubelet into your AKS cluster.

References: https://docs.microsoft.com/en-us/azure/aks/virtual-kubelet

Correct Answer: See solution below.

1.

Open Microsoft Azure Portal, and select the Azure Container Registry instance named az4009940427acr1.

2.

Under Policies, select Content Trust > Enabled > Save.

References: https://docs.microsoft.com/en-us/azure/container-registry/container-registry-content-trust

Correct Answer: C

Scenario: Access to Azure DevOps must be restricted to specific IP addresses.

Azure DevOps is authenticated through Azure Active Directory. You can use Azure AD's conditional access to prevent logins from certain geographies and address ranges.

Reference:

https://www.rebeladmin.com/2018/08/step-step-guide-configure-location-based-conditionalaccess-policies/

Correct Answer: A

To build your code or deploy your software using Azure Pipelines, you need at least one agent.

If your on-premises environments do not have connectivity to a Microsoft-hosted agent pool (which is typically the case due to intermediate firewalls), you'll need to manually configure a self-hosted agent on on-premises computer(s). The agents must have connectivity to the target on-premises environments, and access to the Internet to connect to Azure Pipelines or Team Foundation Server.

References: https://docs.microsoft.com/en-us/azure/devops/pipelines/agents/agents?view=azure-devops

Correct Answer: B

You can create a service hook for Azure DevOps Services and TFS with Jenkins.

References: https://docs.microsoft.com/en-us/azure/devops/service-hooks/services/jenkins

Correct Answer: B

Instead create an action group.

Note: An action group is a collection of notification preferences defined by the owner of an Azure subscription. Azure Monitor, Service Health and Azure Advisor alerts use action groups to notify users that an alert has been triggered.

Reference:

https://docs.microsoft.com/en-us/azure/azure-monitor/alerts/action-groups

Correct Answer: D

Explanation:

Step 1: Add the Firebase Crashlytics SDK to your app.

Configure the Firebase module:

Import the Firebase module in your App struct or UIApplicationDelegate

Reference: https://firebase.google.com/docs/crashlytics/get-started?platform=ios

Correct Answer: C

Correct Answer: B

Playwright enables reliable end-to-end testing for modern web apps.

Any browser • Any platform • One API

Cross-browser. Playwright supports all modern rendering engines including Chromium, WebKit, and Firefox.

Cross-platform. Test on Windows, Linux, and macOS, locally or on CI, headless or headed.

Cross-language. Use the Playwright API in TypeScript, JavaScript, Python, .NET, Java.

Test Mobile Web. Native mobile emulation of Google Chrome for Android and Mobile Safari. The same rendering engine works on your Desktop and in the Cloud.

Incorrect:

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JaCoCo

JaCoCo is an open-source toolkit for measuring code coverage in a code base and reporting it via visual reports. It is quite popular among a variety of code coverage frameworks. It measures line and branch coverage based on the code

covered by the running unit test cases and provides a visual report, including the highlighted lines of code and the total percentage of code executed in each method. From this analysis, the developer can assess code that has not been

adequately tested. It's best to focus on areas where coverage is particularly low and try to analyze why this code hasn't been thoroughly tested.

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Xamarin. UITest

Xamarin. UITest is the Automation Library that allows the NUnit tests to execute on Android and iOS devices. The tests interact with the user interface as a user would: entering text, tapping buttons, and gestures - such as swipes.

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Microsoft.CodeAnalysis

What is Microsoft code analysis?

Code quality analysis ("CAxxxx") rules inspect your C# or Visual Basic code for security, performance, design and other issues. Analysis is enabled, by default, for projects that target . NET 5 or later. You can enable code analysis on projects

that target earlier .

Reference:

https://playwright.dev/