Microsoft Microsoft Certifications AZ-400 Questions & Answers

• Question 81:

  DRAG DROP

  You are developing a full Microsoft .NET Framework solution that includes unit tests.

  You need to configure SonarQube to perform a code quality validation of the C# code as part of the build pipelines.

  Which four tasks should you perform in sequence? To answer, move the appropriate tasks from the list of tasks to the answer area and arrange them in the correct order.

  Select and Place:

  

  Correct Answer:

  

  Step 1: Prepare Analysis Configuration

  Prepare Analysis Configuration task, to configure all the required settings before executing the build.

  This task is mandatory.

  In case of .NET solutions or Java projects, it helps to integrate seamlessly with MSBuild, Maven and Gradle tasks.

  Step 2: Visual Studio Build

  Reorder the tasks to respect the following order:

  Prepare Analysis Configuration task before any MSBuild or Visual Studio Build task.

  Step 3: Visual Studio Test

  Reorder the tasks to respect the following order:

  Run Code Analysis task after the Visual Studio Test task.

  Step 4: Run Code Analysis

  Run Code Analysis task, to actually execute the analysis of the source code.

  This task is not required for Maven or Gradle projects, because scanner will be run as part of the Maven/Gradle build.

  Note:

  References: https://docs.sonarqube.org/display/SCAN/Analyzing+with+SonarQube+Extension+for+VSTS-TFS

• Question 82:

  DRAG DROP

  You are defining release strategies for two applications as shown in the following table.

  

  Which release strategy should you use for each application? To answer, drag the appropriate release strategies to the correct applications. Each release strategy 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.

  Select and Place:

  

  Correct Answer:

  

  App1: Canary deployment

  With canary deployment, you deploy a new application code in a small part of the production infrastructure. Once the application is signed off for release, only a few users are routed to it. This minimizes any impact.

  With no errors reported, the new version can gradually roll out to the rest of the infrastructure.

  App2: Rolling deployment:

  In a rolling deployment, an application's new version gradually replaces the old one. The actual deployment happens over a period of time. During that time, new and old versions will coexist without affecting functionality or user experience.

  This process makes it easier to roll back any new component incompatible with the old components.

  Incorrect Answers:

  Blue/Green deployment

  A blue/green deployment is a change management strategy for releasing software code. Blue/green deployments, which may also be referred to as A/B deployments require two identical hardware environments that are configured exactly the

  same way. While one environment is active and serving end users, the other environment remains idle.

  Blue/green deployments are often used for consumer-facing applications and applications with critical uptime requirements. New code is released to the inactive environment, where it is thoroughly tested. Once the code has been vetted, the

  team makes the idle environment active, typically by adjusting a router configuration to redirect application program traffic. The process reverses when the next software iteration is ready for release.

  References:

  https://dev.to/mostlyjason/intro-to-deployment-strategies-blue-green-canary-and-more-3a3

• Question 83:

  DRAG DROP

  You are implementing a package management solution for a Node.js application by using Azure Artifacts.

  You need to configure the development environment to connect to the package repository. The solution must minimize the likelihood that credentials will be leaked.

  Which file should you use to configure each connection? To answer, drag the appropriate files to the correct connections. Each file 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.

  Select and Place:

  

  Correct Answer:

  

  All Azure Artifacts feeds require authentication, so you'll need to store credentials for the feed before you can install or publish packages. npm uses .npmrc configuration files to store feed URLs and credentials. Azure DevOps Services

  recommends using two .npmrc files.

  Feed registry information: The .npmrc file in the project

  One .npmrc should live at the root of your git repo adjacent to your project's package.json. It should contain a "registry" line for your feed and it should not contain credentials since it will be checked into git.

  Credentials: The .npmrc file in the user's home folder

  On your development machine, you will also have a .npmrc in $home for Linux or Mac systems or $env.HOME for win systems. This .npmrc should contain credentials for all of the registries that you need to connect to. The NPM client will

  look at your project's .npmrc, discover the registry, and fetch matching credentials from $home/.npmrc or $env.HOME/.npmrc.

  References:

  https://docs.microsoft.com/en-us/azure/devops/artifacts/npm/npmrc?view=azure-devopsandtabs=windows

• Question 84:

  DRAG DROP

  You are creating a NuGet package.

  You plan to distribute the package to your development team privately.

  You need to share the package and test that the package can be consumed.

  Which four 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.

  Select and Place:

  

  Correct Answer:

  

  Step 1: Configure a self-hosted agent.

  The build will run on a Microsoft hosted agent.

  Step 2: Create a new Azure Artifacts feed

  Microsoft offers an official extension for publishing and managing your private NuGet feeds.

  Step 3: Publish the package.

  Publish, pack and push the built project to your NuGet feed.

  Step 4: Connect to an Azure Artifacts feed.

  With the package now available, you can point Visual Studio to the feed, and download the newly published package

  References:

  https://medium.com/@dan.cokely/creating-nuget-packages-in-azure-devops-with-azure-pipelines-and-yaml-d6fa30f0f15e

• Question 85:

  DRAG DROP

  You need to find and isolate shared code. The shared code will be maintained in a series of packages.

  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.

  Select and Place:

  

  Correct Answer:

  

  Step 1: Create a dependency graph for the application

  By linking work items and other objects, you can track related work, dependencies, and changes made over time. All links are defined with a specific link type. For example, you can use Parent/Child links to link work items to support a

  hierarchical tree structure. Whereas, the Commit and Branch link types support links between work items and commits and branches, respectively.

  Step 2: Group the related components.

  Packages enable you to share code across your organization: you can compose a large product, develop multiple products based on a common shared framework, or create and share reusable components and libraries.

  Step 3: Assign ownership to each component graph

  References:

  https://docs.microsoft.com/en-us/azure/devops/boards/queries/link-work-items-support-traceability?view=azure-devopsandtabs=new-web-form

  https://docs.microsoft.com/en-us/visualstudio/releasenotes/tfs2017-relnotes

• Question 86:

  DRAG DROP

  You plan to use Azure Kubernetes Service (AKS) to host containers deployed from images hosted in a Docker Trusted Registry.

  You need to recommend a solution for provisioning and connecting to AKS. The solution must ensure that AKS is RBAC-enabled and uses a custom service principal.

  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.

  Select and Place:

  

  Correct Answer:

  

  Step 1 : az acr create

  An Azure Container Registry (ACR) can also be created using the new Azure CLI.

  az acr create

  --name

  --resource-group

  --sku Basic

  Step 2: az ad sp create-for-rbac

  Once the ACR has been provisioned, you can either enable administrative access (which is okay for testing) or you create a Service Principal (sp) which will provide a client_id and a client_secret.

  az ad sp create-for-rbac

  --scopes /subscriptions//resourcegroups//providers/Microsoft.ContainerRegistry/registries/

  --role Contributor

  --name

  Step 3: kubectl create

  Create a new Kubernetes Secret.

  kubectl create secret docker-registry

  --docker-server .azurecr.io

  --docker-email

  --docker-username=

  --docker-password

  References:

  https://thorsten-hans.com/how-to-use-private-azure-container-registry-with-kubernetes

• Question 87:

  DRAG DROP

  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.

  Select and Place:

  

  Correct Answer:

  

  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.

  Incorrect Answers:

  XP:

  The work tracking objects contained within the default DevOps processes and DevOps process templates are Basic, Agile, CMMI, and Scrum

  XP (Extreme Programming) and DevOps are different things. They don't contradict with each other, they can be used together, but they have different base concepts inside them.

  References:

  https://docs.microsoft.com/en-us/azure/devops/boards/work-items/guidance/choose-process?view=azure-devops

• Question 88:

  DRAG DROP

  You have an Azure Kubernetes Service (AKS) implementation that is RBAC-enabled.

  You plan to use Azure Container Instances as a hosted development environment to run containers in the AKS implementation.

  You need to configure Azure Container Instances as a hosted environment for running the containers in AKS.

  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.

  Select and Place:

  

  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

• Question 89:

  DRAG DROP

  Your company wants to use Azure Application Insights to understand how user behaviors affect an application.

  Which application Insights tool should you use to analyze each behavior? To answer, drag the appropriate tools to the correct behaviors. Each tool 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.

  Select and Place:

  

  Correct Answer:

  

  Box 1: User Flows

  The User Flows tool visualizes how users navigate between the pages and features of your site. It's great for answering questions like:

  How do users navigate away from a page on your site?

  What do users click on a page on your site?

  Where are the places that users churn most from your site?

  Are there places where users repeat the same action over and over?

  Box 2: Users

  Box 3: Impact

  Reference:

  https://docs.microsoft.com/en-us/azure/azure-monitor/app/usage-flows

• Question 90:

  DRAG DROP You need to recommend project metrics for dashboards in Azure DevOps. Which chart widgets should you recommend for each metric? To answer, drag the appropriate chart widgets to the correct metrics. Each chart widget 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.

  Select and Place:

  

  Correct Answer:

  

  Box 1: Lead time

  Lead time measures the total time elapsed from the creation of work items to their completion.

  Box 2: Cycle time

  Cycle time measures the time it takes for your team to complete work items once they begin actively working on them.

  Box 3: Burndown

  Burndown charts focus on remaining work within a specific time period.

  Incorrect Answers:

  Velocity provides a useful metric for these activities:

  Support sprint planning

  Forecast future sprints and the backlog items that can be completed

  A guide for determining how well the team estimates and meets their planned commitments

  References:

  https://docs.microsoft.com/en-us/azure/devops/report/dashboards/velocity-guidance?view=vsts

  https://docs.microsoft.com/en-us/azure/devops/report/dashboards/cycle-time-and-lead-time?view=vsts

  https://docs.microsoft.com/en-us/azure/devops/report/dashboards/configure-burndown-burnup-widgets?view=vsts