GitHub GITHUB-ACTIONS Online Practice Questions and Exam Preparation

GitHub GITHUB-ACTIONS Online Questions & Answers

• Question 71:

  You are building a composite action that must accept an input named environment. Which syntax correctly defines this input in the metadata file?

  A. inputs: environment: default: dev
  B. inputs: environment: description: Target environment required: true
  C. parameters: environment: type: string
  D. variables: environment: required: true
  B. inputs: environment: description: Target environment required: true

  ---

  Composite or custom actions define their accepted inputs in the action.yml file using the inputs key. Each input can include a description, a required flag, and optionally a default value. The description helps users understand how to use the input.

• Question 72:

  As a developer, what is the safest way to reference an action to prevent modification of the underlying code?

  A. Use a commit hash.
  B. Use a branch name.
  C. Use a patch release tag.
  D. Use a major release tag.
  A. Use a commit hash.

  ---

  Using acommit hashis the safest method because it references a specific point in time in the repository's history. This ensures that the action is locked to that exact version and will not be affected by any future changes or modifications to the codebase. Even if the action is updated later, your workflow will continue using the specific commit you referenced.

• Question 73:

  What is the right method to ensure users approve a workflow before the next step proceeds?

  A. creating a branch protection rule and only allow certain users access
  B. grantingusers workflow approval permissions
  C. adding users as required reviewers for an environment
  D. granting users repository approval permissions
  C. adding users as required reviewers for an environment

  ---

  GitHub Actions allows you to configure environment protection rules, where you can require specific users or teams to approve the deployment before the workflow proceeds to the next step. This ensures that the required reviewers approve the workflow before any sensitive actions (such as deployment) occur.

• Question 74:

  A developer wants to reuse an entire workflow across multiple repositories. Which mechanism allows this?

  A. Composite action
  B. Workflow templates
  C. Reusable workflows via workflow_call
  D. Container actions
  C. Reusable workflows via workflow_call

  ---

  Reusable workflows defined with the workflow_call trigger can be invoked from other workflows or repositories, promoting modularity and reducing duplication of automation logic.

• Question 75:

  You are a developer, and your container jobs are failing on a self-hosted runner. Which requirements must you check to ensure that the self-hosted runner is properly configured? (Choose two.)

  A. The self-hosted runner is running a Linux operating system.
  B. The self-hosted runner is running a Windows operating system.
  C. Docker is installed on the self-hosted runner.
  D. Kubernetes is installed on the self-hosted runner.
  E. The service status of Kubernetes is "active".
  A. The self-hosted runner is running a Linux operating system.
  C. Docker is installed on the self-hosted runner.

  ---

  While Docker can run on various operating systems, Linux is often the most common and preferred OS for containerized workloads. Docker works well on Linux and is a widely-used platform for running containers. For container jobs to run on a self-hosted runner, Docker must be installed and properly configured on the runner. Docker is required to build and run containerized workloads in a GitHub Actions workflow.

• Question 76:

  What is the smallest scope for an environment variable?

  A. the workflow settings
  B. a step
  C. a job
  D. the workflow env mapping
  B. a step

  ---

  The smallest scope for an environment variable is within astep. Environment variables defined within a step are only accessible to that particular step, which makes it the smallest scope for a variable in a GitHub Actions workflow.

• Question 77:

  As a developer, you are optimizing a GitHub workflow that uses and produces many different files. You need to determine when to use caching versus workflow artifacts. Which two statements are true? (Choose two.)

  A. Use cachingwhen reusing files that change rarely between jobs or workflow runs.
  B. Use artifacts when referencingfiles produced by a job after a workflow has ended.
  C. Use caching to store cache entries for up to 30 days between accesses.
  D. Use artifacts to access theGitHub Package Registry and download a package for a workflow
  A. Use cachingwhen reusing files that change rarely between jobs or workflow runs.
  B. Use artifacts when referencingfiles produced by a job after a workflow has ended.

  ---

  Caching is ideal for files that change rarely, such as dependencies or build outputs, as it speeds up subsequent workflow runs by reusing previously cached files instead of re-downloading or rebuilding them. Artifacts are used for persisting files produced during a job that need to be used in later jobs or after the workflow has ended, allowing them to be downloaded or referenced later.

• Question 78:

  You need to create new workflows to deploy to an unfamiliar cloud provider. What is the fastest and safest way to begin?

  A. Create a custom action to wrap the cloud provider's CLI.
  B. Search GitHub Marketplace for verified actions published by the cloud provider.
  C. Use the actions/jenkins-plugin action to utilize an existing Jenkins plugin for the cloud provider.
  D. Search GitHub Marketplace for actions created by GitHub.
  E. Download the CLI for the cloud provider and review the associated documentation.
  B. Search GitHub Marketplace for verified actions published by the cloud provider.

  ---

  Searching the GitHub Marketplace for verified actions published by the cloud provider is the quickest and safest approach. Many cloud providers offer verified GitHub Actions that are maintained and optimized to interact with their services. These actions typically come with the correct configurations and best practices, allowing you to get started quickly without reinventing the wheel.

• Question 79:

  What menu options in a repository do you need to select in order to use a starter workflow that is provided by your organization?

  A. Actions > Load workflow
  B. Workflow > New workflow
  C. Workflow > Load workflow
  D. Actions > New workflow
  D. Actions > New workflow

  ---

  To use a starter workflow provided by your organization, you need to go to the Actions tab in the repository and select New workflow. This option allows you to either create a new workflow or select from a list of available workflow templates, including starter workflows provided by your organization.

• Question 80:

  Which GitHub Actions feature allows a workflow to be triggered by another workflow within the same repository?

  A. workflow_dispatch
  B. workflow_run
  C. workflow_call
  D. repository_dispatch
  B. workflow_run

  ---

  The workflow_run event enables a workflow to be triggered automatically after another workflow completes. This event type is useful for chaining workflows together, where one workflow performs testing and another performs deployment after successful completion.