Microsoft AZ-400 Exam Dumps

Microsoft AZ-400 Sample Question Answers

Question # 1

In Azure DevOps, you create Project3.You need to meet the requirements of the project.What should you do first?

A. From Azure DevOps, create a service endpoint.
B. From SonarQube, obtain an authentication token.
C. From Azure DevOps, modify the build definition.
D. From SonarQube, create a project. 

Show Answer

Question # 2

You are designing an Azure DevOps strategy for your company’s development team.You suspect that the team’s productivity is low due to accumulate technical debt.You need to recommend a metric to assess the amount of the team’s technical debt.What should you recommend?

A. the number of code modules in an application
B. the number of unit test failures
C. the percentage of unit test failures
D. the percentage of overall time spent on rework

Show Answer

Question # 3

You have an Azure DevOps organization named Contoso and art Azure subscription The subscription contains an Azure virtual machine scale set named VMSS1 that is configured for autoscaling.You use Azure DevOps to build a web app named Appl and deploy Appl to VMSS1. Appl is used heavily and has usage patterns that vary on a weekly basis.You need to recommend a solution to detect an abnormal rise in the rate of failed requests to Appl. The solution must minimize administrative effort.What should you include in the recommendation?

A. an Azure Service Health alert
B. the Failures feature in Azure Application Insights
C. the Smart Detection feature m Azure Application Insights
D. an Azure Monitor alert that uses an Azure Log Analytics query

Show Answer

Question # 4

Your company implements an Agile development methodology.You plan to implement retrospectives at the end of each sprint.Which three questions should you include? Each correct answer presents part of the solution.NOTE: Each correct selection is worth one point.

A. Who performed well?
B. Who should have performed better?
C. What could have gone better?
D. What went well?
E. What should we try next?

Show Answer

Question # 5

You plan to create a project in Azure DevOps. Multiple developers will work on the project. The developers will work offline frequently and will require access to the full project history while they are offline.Which version control solution should you use?

A. TortotseSVN
B. Team Foundation Version Control
C. Subversion
D. Git

Show Answer

Question # 6

You have a containerized solution that runs in Azure Container Instances. The solution contains a frontend container named App1 and a backend container named DB1. DB1 loads a large amount of data during startup.You need to verify that DB1 can handle incoming requests before users can submit requests to Appl.What should you configure?

A. a Iiveness probe
B. an Azure Load Balancer health probe
C. a readiness probe
D. a performance log

Show Answer

Question # 7

You need to execute inline testing of an Azure DevOps pipeline that uses a Docker deployment model. The solution must prevent the results from being published to the pipeline.What should you use for the inline testing?

A. a single stage Dockerfile
B. an Azure Kubernetes Service (AKS) pod
C. a multi-stage Dockerfile
D. a Docker Compose file

Show Answer

Question # 8

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.

Show Answer

Question # 9

You are creating a build pipeline in Azure Pipelines.You define several tests that might fail due to third-party applications.You need to ensure that the build pipeline completes successfully if the third-party applications are unavailable.What should you do?

A. Configure the build pipeline to use parallel jobs
B. Configure flaky tests
C. Increase the test pass percentage
D. Add the Requirements quality widget to your dashboard

Show Answer

Question # 10

You have an existing project in Azure DevOps.You plan to integrate GitHub as the repository for the projectYou need to ensure that Azure Pipelines runs under the Azure Pipelines identityWhich authentication mechanism should you use?

A. GitHubApp
B. OAuth
C. personal access token (PAT)
D. Azure Active Directory (Azure AD)

Show Answer

Question # 11

You have an Azure subscription. The subscription contains virtual machines that run either Windows Server or Linux.You plan to use Prometheus to monitor performance metrics.You need to integrate Prometheus and Azure Monitor.Which two actions should you perform? Each correct answer presents part of the solution.NOTE: Each correct selection is worth one point.

A. Install a Prometheus server on a Windows virtual machine in Azure.
B. On each virtual machine, expose the metrics endpoint.
C. On each virtual machine, enable the Azure Diagnostics extension.
D. On each virtual machine, enable the containerized agent for Azure Monitor.
E. Expose a virtual network service endpoint for Azure Storage.
F. Install a Prometheus server on a Linux virtual machine in Azure.

Show Answer

Question # 12

Your company uses Azure DevOps to manage the build and release processes for applications.You use a Git repository for applications source control.You plan to create a new branch from an existing pull request. Later, you plan to merge the new branch and the target branch of the pull request.You need to use a pull request action to create the new branch. The solution must ensure that the branch uses only a portion of the code in the pull request.Which pull request action should you use?

A. Set as default branch
B. Approve with suggestions
C. Cherry-pick
D. Reactivate
E. Revert

Show Answer

Question # 13

Your company uses Azure Artifacts for package management.You need to configure an upstream source in Azure Artifacts for Python packages.Which repository type should you use as an upstream source?

A. PyPI
B. npmjs.org
C. Maven Central
D. third-party trusted Python

Show Answer

Question # 14

You have an Azure DevOps organization named Contoso.You need to recommend an authentication mechanism that meets the following requirements:• Supports authentication from Git• Minimizes the need to provide credentials during authenticationWhat should you recommend?

A. managed identities in Azure Active Directory (Azure AD)
B. personal access tokens (PATs) in Azure DevOps
C. user accounts in Azure Active Directory (Azure AD)
D. Alternate credentials in Azure DevOps

Show Answer

Question # 15

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 have an Azure DevOps organization named Contoso and an Azure subscription. The subscription contains an Azure virtual machine scale set named VMSS1 that is configured for autoscaling.You have a project in Azure DevOps named Project1. Project1 is used to build a web app named App1 and deploy App1 to VMSS1.You need to ensure that an email alert is generated whenever VMSS1 scales in or out.Solution: From Azure Monitor, create an action group.Does this meet the goal?

A. Yes
B. No

Show Answer

Question # 16

You plan to provision a self-hosted Linux agentWhich authentication mechanism should you use to register the self-hosted agent?

A. SSH key
B. personal access token (PAT)
C. Alternate credentials
D. certificate

Show Answer

Question # 17

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 use Azure Pipelines to build and test a React js application.You have a pipeline that has a single job.You discover thai installing JavaScript packages from npm takes approximately five minutes each time you run the pipeline.You need to recommend a solution to reduce the pipeline execution time.Solution: You recommend defining a container job that uses a custom container that has the JavaScript packages preinstalled.Does this meet the goal?

A. Yes
B. No

Show Answer

Question # 18

You have an existing build pipeline in Azure Pipelines.You need to use incremental builds without purging the environment between pipeline executions.What should you use?

A. a File Transform task
B. a self-hosted agent
C. Microsoft-hosted parallel jobs

Show Answer

Question # 19

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 have an Azure DevOps organization named Contoso and an Azure subscription. The subscription contains an Azure virtual machine scale set named VMSS1 that is configured for autoscaling.You have a project in Azure DevOps named Project1. Project1 is used to build a web app named App1 and deploy App1 to VMSS1.You need to ensure that an email alert is generated whenever VMSS1 scales in or out.Solution: From Azure DevOps, configure the Notifications settings for Project1.Does this meet the goal?

A. Yes
B. No

Show Answer

Question # 20

You are designing the security validation strategy for a project in Azure DevOps.You need to identify package dependencies that have known security issues and can be resolved by an update.What should you use?

A. Octopus Deploy
B. Jenkins
C. Gradle
D. SonarQube

Show Answer

Question # 21

Note: This question is part of a series of questions that present the same scenario. Each question in the series contains a 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 have an Azure DevOps project.Your build process creates several artifacts.You need to deploy the artifacts to on-premises servers.Solution: You deploy a Docker build to an on-premises server. You add a Download BuildArtifacts task to the deployment pipeline.Does this meet the goal?

A. Yes
B. No

Show Answer

Question # 22

You have a multi-tier application. The front end of the application is hosted in Azure App Service. You need to identify the average load times of the application pages. What should you use?

A. the diagnostics logs of the App Service
B. Azure Application Insights
C. Azure Advisor
D. the activity log of the App Service

Show Answer

Question # 23

You have a build pipeline in Azure Pipelines that uses different jobs to compile an application for 10 different architectures.The build pipeline takes approximately one day to complete.You need to reduce the time it takes to execute the build pipelineWhich two actions should you perform? Each correct answer presents part of the solution.NOTE: Each correct selection is worth one point

A. Move to a blue/green deployment pattern.
B. Create an agent pool.
C. Create a deployment group.
D. Reduce the size of the repository.
E. Increase the number of parallel jobs.

Show Answer

Question # 24

You are building a Microsoft ASP.NET application that requires authentication. You need to authenticate users by using Azure Active Directory (Azure AD). What should you do first?

A. Create a membership database in an Azure SQL database.
B. Assign an enterprise application to users and groups.
C. Create an app registration in Azure AD.
D. Configure the application to use a SAML endpoint.
E. Create a new OAuth token from the application.

Show Answer

Question # 25

Your company has an Azure DevOps project,The source code for the project is stored in an on-premises repository and uses on an onpremises build server.You plan to use Azure DevOps to control the build process on the build server by using a self-hosted agent.You need to implement the self-hosted agent.You download and install the agent on the build server.Which two actions should you perform next? Each correct answer presents part of the solution.

A. From Azure, create a shared access signature (SAS).
B. From the build server, create a certificate, and then upload the certificate to Azure Storage.
C. From the build server, create a certificate, and then upload the certificate to Azure Key Vault.
D. From DevOps, create a personal access token (PAT).
E. From the build server, run config.cmd.

Show Answer

Question # 26

You are designing a configuration management solution to support five apps hosted on Azure App Service.Each app is available in the following three environments: development, test, and production.You need to recommend a configuration management solution that meets the following requirements:Supports feature flagsTracks configuration changes from the past 30 daysStores hierarchically structured configuration valuesControls access to the configurations by using role-based access control (RBAC) permissionStores shared values as key/value pairs that can be used by all the appsWhich Azure service should you recommend as the configuration management solution?

A. Azure Cosmos DB
B. Azure App Service
C. Azure App Configuration
D. Azure Key Vault

Show Answer

Question # 27

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 use Azure Pipelines to build and test a React js applicationYou have a pipeline that has a single job.You discover that installing JavaScript packages from npm lakes approximately five minutes each time you run the pipeline.You need to recommend a solution to reduce the pipeline execution time.Solution: You recommend enabling pipeline caching.Does this meet the goal?

A. Yes
B. No

Show Answer

Question # 28

You need to ensure that Microsoft Visual Studio 2017 can remotely attach to an Azure Function namedfa-11566895.To complete this task, sign in to the Microsoft Azure portal.See solution below.

Show Answer

Question # 29

Note: This question is part of a series of questions that present the same scenario. Each question in the seriescontains a unique solution that might meet the stated goals. Some question sets might have more than onecorrect 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 questionswill not appear in the review screen.You plan to update the Azure DevOps strategy of your company.You need to identify the following issues as they occur during the company’s development process:Licensing violationsProhibited librariesSolution: You implement automated security testingDoes this meet the goal?

A. Yes
B. No

Show Answer

Question # 30

You manage an Azure web app that supports an e-commerce website.You need to increase the logging level when the web app exceeds normal usage patterns. The solution must minimize administrative overhead.Which two resources should you include in the solution? Each correct answer presents part of the solution.NOTE: Each correct selection is worth one point.

A. an Azure Monitor alert that has a dynamic threshold
B. an Azure Automation runbook
C. an Azure Monitor alert that uses an action group that has an email action
D. the Azure Monitor autoscale settings
E. an Azure Monitor alert that has a static threshold

Show Answer

Question # 31

You have a project in Azure DevOps named Project1. Project1 contains a build pipeline named Pipe1 thatbuilds an application named Appl.You have an agent pool named Pool1 that contains a Windows Server 2019-based self-hosted agent. Pipe1uses Pool1.You plan to implement another project named Project2. Project2 will have a build pipeline named Pipe2 thatbuilds an application named App2.App1 and App2 have conflicting dependencies.You need to minimize the possibility that the two build pipelines will conflict with each other. The solutionmust minimize infrastructure costs.What should you do?

A. Create two container jobs.
B. Change the self-hosted agent to use Red Hat Enterprise Linux (RHEL) 8.
C. Add another self-hosted agent
D. Add a Docker Compose task to the build pipelines.

Show Answer

Question # 32

Your company « concerned that when developers introduce open source Libraries, it creates licensing compliance issues.You need to add an automated process to the build pipeline to detect when common open source libraries are added to the code base.What should you use?

A. Code Style
B. Microsoft Visual SourceSafe
C. Black Duck
D. Jenkins

Show Answer

Question # 33

You are deploying a server application that will run on a Server Core installation of Windows Server 2019.You create an Azure key vault and a secret.You need to use the key vault to secure API secrets for third-party integrations.Which three actions should you perform? Each correct answer presents part of the solution.NOTE: Each correct selection is worth one point.D18912E1457D5D1DDCBD40AB3BF70D5D

A. Configure RBAC for the key vault.
B. Modify the application to access the key vault.
C. Configure a Key Vault access policy.
D. Deploy an Azure Desired State Configuration (DSC) extension.
E. Deploy a virtual machine that uses a system-assigned managed identity.

Show Answer

Question # 34

You need to configure GitHub to use Azure Active Directory (Azure AD) for authentication. What should you do first? 

A. Create a conditional access policy in Azure AD.
B. Modify the Security settings of the GitHub organization
C. Create an Azure Active Directory B2C (Azure AD B2C) tenant.
D. Register GitHub in Azure AD.

Show Answer

Question # 35

You use WhiteSource Bolt to scan a Node.js application.The WhiteSource Bolt scan identifies numerous libraries that have invalid licenses. The libraries are used onlyduring development and are not part of a production deployment.You need to ensure that WhiteSource Bolt only scans production dependencies.Which two actions should you perform? Each correct answer presents part of the solution.NOTE: Each correct selection is worth one point.

A. Run npm install and specify the --production flag
B. Modify the WhiteSource Bolt policy and set the action for the licenses used by the development tools to Reassign.
C. Modify the devDependencies section of the project’s Package.json file.
D. Configure WhiteSource Bolt to scan the node_modules directory only.

Show Answer

Question # 36

You store source code in a Git repository in Azure repos. You use a third-party continuous integration (CI)tool to control builds.What will Azure DevOps use to authenticate with the tool?

A. certificate authentication
B. a personal access token (PAT)
C. a Shared Access Signature (SAS) token
D. NTLM authentication

Show Answer

Question # 37

You are designing a build pipeline in Azure Pipelines.The pipeline requires a self-hosted agent. The build pipeline will run once daily and will take 30 minutes to complete.You need to recommend a compute type for the agent. The solution must minimize costs.What should you recommend?

A. Azure virtual machines
B. an Azure virtual machine scale set
C. an Azure Kubernetes Service (AKS) cluster
D. Azure Container Instances

Show Answer

Question # 38

You have a project in Azure DevOps named Project1. Project! contains a pipeline that builds a container image named Image! and pushes Image1 to an Azure container registry named ACR1. Image! uses a base image stored in Docker Hub. You need to ensure that Image1 is updated automatically whenever the base image is updated.What should you do?

A. Create and run an Azure Container Registry task.
B. Add a Docker Hub service connection to Azure Pipelines.
C. Enable the Azure Event Grid resource provider and subscribe to registry events.
D. Create a service hook in Project1.

Show Answer

Question # 39

You have a private GitHub repository.You need to display the commit status of the repository on Azure Boards.What should you do first?

A. Create a GitHub action in GitHub.
B. Add the Azure Pipelines app to the GitHub repository.
C. Configure multi-factor authentication (MFA) for your GitHub account.
D. Add the Azure Boards app to the repository.

Show Answer

Question # 40

You have an Azure DevOps project that uses many package feeds.You need to simplify the project by using a single feed that stores packages produced by your company and packages consumed from remote feeds. The solution must support public feeds and authenticated feeds.What should you enable in DevOps?

A. Universal Packages
B. views in Azure Artifacts
C. upstream sources
D. a symbol server

Show Answer

Question # 41

You are monitoring the health and performance of an Azure web app by using Azure Application Insights. You need to ensure that an alert is sent when the web app has a sudden rise in performance issues and failures. What should you use? 

A. Application Insights Profiler
B. Continuous export
C. Smart Detection
D. custom events
E. usage analysis

Show Answer

Question # 42

Note: This question is part of a series of questions that present the same scenario. Each question in the series contains a 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.Your company uses Azure DevOps to manage the build and release processes for applications.You use a Git repository for applications source control.You need to implement a pull request strategy that reduces the history volume in the master branch.Solution: You implement a pull request strategy that uses squash merges.Does this meet the goal?

A. Yes
B. No

Show Answer

Question # 43

You use Azure Pipelines to manage project builds and deployments.You plan to use Azure Pipelines for Microsoft Teams to notify the legal team when a new build is ready for release. You need to configure the Organization Settings in Azure DevOps to support Azure Pipelines forMicrosoft Teams. What should you turn on?

A. Azure Active Directory Conditional Access Policy Validation
B. Alternate authentication credentials
C. Third-party application access via OAuth
D. SSH authentication

Show Answer

Question # 44

Note: This question is part of a series of questions that present the same scenario. Each question in the series contains a 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.Your company uses Azure DevOps to manage the build and release processes for applications.You use a Git repository for applications source control.You need to implement a pull request strategy that reduces the history volume in the master branch.Solution: You implement a pull request strategy that uses an explicit merge.Does this meet the goal?

A. Yes
B. No

Show Answer

Question # 45

Your company has a project in Azure DevOps for a new web application.The company uses Service Now for change management.You need to ensure that a change request is processed before any components can be deployed to the production environment.What are two ways to integrate into the Azure DevOps release pipeline? Each correct answer presents a complete solution.NOTE: Each correct selection is worth one point.

A. Define a deployment control that invokes the Service Now SOAP API.
B. Define a post deployment gate after the deployment to the QA stage.
C. Define a deployment control that invokes the ServiceNow REST API.
D. Define a pre deployment gate before the deployment to the Prod stage.

Show Answer

Question # 46

You are designing a strategy to monitor the baseline metrics of Azure virtual machines that run Windows Server. You need to collect detailed data about the processes running in the guest operating system. Which two agents should you deploy? Each correct answer presents part of the solution. NOTE: Each correct selection is worth one point.

A. the Dependency agent
B. the Azure Network Watcher Agent for Windows
C. the Telegraf agent
D. the Azure Log Analytics agent

Show Answer

Question # 47

You use Azure Pipelines to manage build pipelines. GitHub to store source code, and Dependabot to manage dependencies.You have an app named App1.Dependabot detects a dependency in App1 that requires an update.What should you do first to apply the update?

A. Perform a commit.
B. Create a pull request.
C. Approve the pull request
D. Create a branch. 

Show Answer