AZ-400 Free Practice Test

- (Exam Topic 4)
During a code review, you discover many quality issues. Many modules contain unused variables and empty catch Modes. You need to recommend a solution to improve the quality o' the code. What should you recommend?

1. A. In a Gradle build task, select Run Checkstyle.
2. B. In an Xcode build task, select Use xcpretty from Advanced
3. C. In a Grunt build task, select Enabled from Control Options.
4. D. In a Maven build task, select Run PMD.

Correct Answer: D
PMD is a source code analyzer. It finds common programming flaws like unused variables, empty catch blocks, unnecessary object creation, and so forth.
There is an Apache Maven PMD Plugin which allows you to automatically run the PMD code analysis tool on your project's source code and generate a site report with its results.
References: https://pmd.github.io/

- (Exam Topic 4)
You need to recommend an integration strategy for the build process of a Java application. The solution must meet the following requirements:
• The builds must access an on-premises dependency management system.
• The build outputs must be stored as Server artifacts in Azure DevOps.
• The source code must be stored in a Git repository in Azure DevOps.
Solution: Configure the build pipeline to use a Microsoft-hosted agent pool running a Linux image. Include the Java Tool Installer task in the build pipeline.
Does this meet the goal?

1. A. Yes
2. B. No

Correct Answer: A
To run your jobs, you'll need at least one agent. A Linux agent can build and deploy different kinds of apps, including Java and Android apps.
If your pipelines are in Azure Pipelines and a Microsoft-hosted agent meets your needs, you can skip setting up a private Linux agent.
The Azure Pipelines agent pool offers several virtual machine images to choose from, each including a broad range of tools and software. We support Ubuntu, Red Hat, and CentOS.
Reference:
https://docs.microsoft.com/en-us/azure/devops/pipelines/agents/v2-linux?view=azure-devops https://docs.microsoft.com/en-us/azure/devops/pipelines/agents/hosted?view=azure-devops&tabs=yaml

- (Exam Topic 4)
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.

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

Correct Answer: AB

- (Exam Topic 1)
What should you use to implement the code quality restriction on the release pipeline for the investment planning applications suite?

1. A. a trigger
2. B. a pre deployment approval
3. C. a post-deployment approval
4. D. a deployment gate

Correct Answer: D

- (Exam Topic 4)
You manage source code control and versioning by using GitHub.
You need to ensure that a PowerShell script is executed automatically before rebase operations are performed. What should you use?

1. A. a package
2. B. GitHub Copilot
3. C. a webhook
4. D. a gist

Correct Answer: C