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GitHub GitHub-Actions Exam Syllabus Topics:
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NEW QUESTION # 44
As a developer, which workflow steps should you perform to publish an image to the GitHub Container Registry? (Choose three.)
- A. Build the container image.
- B. Push the image to the GitHub Container Registry
- C. Use the actions/setup-docker action
- D. Authenticate to the GitHub Container Registry.
- E. Pull the image from the GitHub Container Registry.
Answer: B,C,D
Explanation:
A: Use the actions/setup-docker action
B: Authenticate to the GitHub Container Registry.
C: Build the container image.
D: Push the image to the GitHub Container Registry
E: Pull the image from the GitHub Container Registry.
NEW QUESTION # 45
How should you install the bats NPM package in your workflow?
- A.
- B.
- C.
- D.
Answer: C
Explanation:
The correct syntax includes specifying the job (example-job), the runner (ubuntu-latest), and the necessary step (npm install -g bats) within the workflow. This ensures that the package is installed properly during the execution of the job.
NEW QUESTION # 46
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 artifacts when referencingfiles produced by a job after a workflow has ended.
- B. Use cachingwhen reusing files that change rarely between jobs or workflow runs.
- 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
Answer: A,B
Explanation:
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.
NEW QUESTION # 47
When reviewing an action for use, what file defines its available inputs and outputs?
- A. defaults.json
- B. config.json
- C. inputs.yml
- D. workflow.yml
- E. action.yml
Answer: E
Explanation:
The action.yml file defines the inputs and outputs for a GitHub Action. This file contains metadata about the action, including the required inputs and outputs, as well as other configurations like the action's description, runs, and environment setup.
NEW QUESTION # 48
Without the need to use additional infrastructure, what is the simplest and most maintainable method for configuring a workflow job to provide access to an empty PostgreSQL database?
- A. It is currently impossible to access the database with GitHub Actions.
- B. Use service containers with a Postgres database from Docker hub.
- C. Dynamically provision and deprovision an environment.
- D. Run the actions/postgres action in a parallel job.
Answer: B
Explanation:
GitHub Actions supports the use of service containers, which allows you to spin up a PostgreSQL database (or any other service) in a Docker container during your workflow. You can pull a PostgreSQL image from Docker Hub, and the container will automatically be available to your workflow job. This method requires no additional infrastructure and is easy to configure and maintain, as you simply define the container in the workflow file.
NEW QUESTION # 49
As a developer, your Actions workflow often reuses the same outputs or downloaded dependencies from one run to another. To cache dependencies for a job, you are using the GitHub cache action. Which input parameters are required for this action? (Choose two.)
- A. restore-keys: the copy action key used with cache parameter to cache the data
- B. dependency: the name and version of a package to cache or restore
- C. key: the key created when saving a cache and the key used to search for a cache
- D. path: the file path on the runner to cache or restore
- E. cache-hit: the copy action key used with restore parameter to restore the data from the cache
- F. ref: the ref name of the branch to access and restore a cache created
Answer: C,D
Explanation:
The key is required because it uniquely identifies the cache. It is used to store and retrieve cached data. When creating or restoring a cache, you need to define a key that will be used to identify the cache.
The path is the file path on the runner that you want to cache. This is where the cached files or dependencies are located and should be specified to tell GitHub where to store or retrieve the cache from.
NEW QUESTION # 50
You have exactly one Windows x64 self-hosted runner, and it is configured with custom tools. Which syntax could you use in the workflow to target that runner?
- A. runs-on: windows-latest
- B. self-hosted: [windows, x64]
- C. runs-on: [self-hosted, windows, x64]
- D. self-hosted: [windows-x64]
Answer: C
Explanation:
The runs-on keyword allows you to specify the operating system and other labels for the runner. By specifying self-hosted, windows, and x64, you are targeting a self-hosted Windows runner that matches these criteria, which aligns with the custom configuration of your self-hosted runner.
NEW QUESTION # 51
As a DevOps engineer, you are trying to leverage an organization secret in a repo. The value received in the workflow is not the same as that set in the secret. What is the most likely reason for the difference?
- A. There is a different value specified at the enterprise level.
- B. There is a different value specified at the workflow level.
- C. The Encrypt Secret setting was not configured for the secret.
- D. The Codespace secret doesn't match the expected value.
- E. There is a different value specified at the rego level.
Answer: E
Explanation:
GitHub secrets are defined at different levels: organization, repository, and sometimes at the workflow level.
If a secret is defined at both the organization level and the repository level, the repository-level secret will take precedence. So, if the value of the secret differs between these levels, the workflow will use the value from the repository level instead of the organization level.
NEW QUESTION # 52
As a DevOps engineer developing a JavaScript action, you need to include annotations to pass warning messages to workflow runners. Which code snippet can you use to implement an annotation in your Actions?
As a DevOps engineer developing a JavaScript action, you need to include annotations to pass warning messages to workflow runners. Which code snippet can you use to implement an annotation in your Actions?
- A. core.notice('Something went wrong, but it\'s not bad enough to fail the build.')
- B. core.info('Something went wrong, but it\'s not bad enough to fail the build.')
- C. core.warning('Something went wrong, but it\'s not bad enough to fail the build.')
- D. core.warn('Something went wrong, but it\'s not bad enough to fail the build.')
Answer: C
Explanation:
Thecore.warning()function from the@actions/corepackage is used to create a warning message in the workflow logs. This is an annotation type that informs users about issues that don't require failing the build but still need attention.
NEW QUESTION # 53
Which of the following scenarios would require the use of self-hosted runners instead of GitHub-hosted runners?
- A. running more than the three concurrent workflows supported by GitHub-hosted runners
- B. using Docker containers as part of the workflow
- C. performing builds on macOS
- D. using specialized hardware configurations required for workflows
- E. exceeding 50,000 monthly minutes of build time
Answer: A,D
Explanation:
GitHub-hosted runners have a limit on the number of concurrent workflows (typically 20 for free-tier accounts and 5 for enterprise). If your organization needs to run more workflows simultaneously, you would need to use self-hosted runners to increase the available concurrency.
Self-hosted runners allow you to configure specialized hardware or software setups that are necessary for certain workflows. GitHub-hosted runners may not have access to custom hardware configurations like GPUs or other specialized resources, so self-hosted runners are required in such cases.
NEW QUESTION # 54
Which of the following is the best way for an enterprise to prevent certain marketplace actions from running?
- A. Create a list of the actions that are restricted from being used as an enterprise policy. Every other action can be run.
- B. Create a list of the actions that are allowed to run as an enterprise policy. Only these actions can be run.
- C. Create a list that is maintained as a . yml file in a . github repository specified in the enterprise. Only these actions can be run.
- D. It is not possible; if an action is in the marketplace, its use cannot be restricted.
Answer: B
Explanation:
The best way for an enterprise to control which GitHub Actions run is by creating a list of approved actions as an enterprise policy. This approach restricts workflows to only use the actions that are explicitly allowed, ensuring security and compliance within the organization.
NEW QUESTION # 55
As a developer, you are using a Docker container action in your workflow. What is required for the action to run successfully?
- A. The action must be published to the GitHub Marketplace.
- B. The job runs-on must specify a Linux machine with Docker installed.
- C. The job env must be set to a Linux environment.
- D. The referenced action must be hosted on Docker Hub.
Answer: B
Explanation:
For a Docker container action to run in a GitHub Actions workflow, the runner must have Docker installed.
The runs-on attribute of the job should specify an environment that supports Docker, typically a Linux environment (e.g., ubuntu-latest), since Docker is widely supported and commonly used in Linux-based environments.
NEW QUESTION # 56
Which run: command will set a step's output?
- A. run: echo "MY_OUTPUT=foo" >> $GITHUB_OUTPUT
- B. run: export MY_OUTPUT=foo
- C. run: echo "::set-env name=MY OUTPUT::foo"
- D. run: echo ${{ $GITHUB_OUTPUT=foo }}
Answer: A
Explanation:
The $GITHUB_OUTPUT file is used to pass data from one step to another in GitHub Actions. The echo command appends the key-value pair to this file, which sets the output variable (MY_OUTPUT) for the current step.
NEW QUESTION # 57
Which default GitHub environment variable indicates the name of the person or app that initiated a workflow?
- A. GITHUB_USER
- B. ENV_ACTOR
- C. GITHUB_ACTOR
- D. GITHUB_WORKFLOW_ACTOR
Answer: C
Explanation:
The GITHUB_ACTOR environment variable indicates the name of the person or app that initiated the workflow. This variable is automatically provided by GitHub in the workflow and can be used to identify the user or application triggering the workflow.
NEW QUESTION # 58
You need to trigger a workflow using the GitHub API for activity that happens outside of GitHub. Which workflow event do you use?
- A. deployment
- B. check_suite
- C. repository_dispatch
- D. workflow_run
Answer: C
Explanation:
Therepository_dispatchevent allows you to trigger a workflow in response to external activity. It is commonly used when you need to trigger a workflow from outside GitHub, such as from another system or service, by sending a request to the GitHub API. This event provides flexibility to integrate with various external systems and trigger workflows in a GitHub repository.
NEW QUESTION # 59
You installed specific software on a Linux self-hosted runner. You have users with workflows that need to be able to select the runner based on the identified custom software. Which steps should you perform to prepare the runner and your users to run these workflows? (Choose two.)
- A. Configure the webhook and network to enable GitHub to trigger workflow.
- B. Inform users to identify the runner based on the group.
- C. Create the group custom-software-on-linux and move the runner into the group.
- D. Add the label linux to the runner.
- E. Add the label custom-software to the runner.
Answer: B,E
Explanation:
Once the runner is properly configured and labeled, users should be informed to select the specific runner by identifying the label or group name when defining the runner in their workflows.
Adding a custom label (likecustom-software) to the runner makes it easier for users to select the runner in their workflows by using theruns-onkey, which allows them to choose this specific runner based on its label.
NEW QUESTION # 60
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 service status of Kubernetes is "active".
- C. The self-hosted runner is running a Windows operating system.
- D. Docker is installed on the self-hosted runner.
- E. Kubernetes is installed on the self-hosted runner.
Answer: A,D
Explanation:
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.
NEW QUESTION # 61
You are reaching your organization's storage limit for GitHub artifacts and packages. What should you do to prevent the storage limit from being reached?
- A. via repositories owned by the organization
- B. via the GitHub Marketplace
- C. via a repository owned by a third party
- D. via the .github repository owned by the organization
Answer: A
Explanation:
To prevent reaching the storage limit for GitHub artifacts and packages, you should manage and clean up artifacts and packages stored in repositories owned by your organization. This includes deleting unnecessary artifacts and managing the lifecycle of packages, as they contribute directly to your organization's storage quota.
NEW QUESTION # 62
What are the two ways to pass data between jobs? (Choose two.)
- A. Use the copy action with cache parameter to cache the data
- B. Use the copy action with restore parameter to restore the data from the cache
- C. Use data storage.
- D. Use the copy action to save the data that should be passed in the artifacts folder.
- E. Use artifact storage.
- F. Use job outputs
Answer: E,F
Explanation:
Job outputs are used to pass data from one job to another in a workflow. A job can produce output values (like variables or files), which can be referenced by subsequent jobs using theneedskeyword and${{ steps.step_id.
outputs.output_name }}syntax.
Artifact storage allows data (such as files or results) to be saved by a job and then retrieved by another job in a later step. This is commonly used for passing large amounts of data or files between jobs.
NEW QUESTION # 63
Your organization is managing secrets using GitHub encrypted secrets, including a secret named SuperSecret.
As a developer, you need to create a version of that secret that contains a different value for use in a workflow that is scoped to a specific repository named MyRepo. How should you store the secret to access your specific version within your workflow?
- A. Create a duplicate entry for SuperSecret in the encrypted secret store and specify MyRepo as the scope.
- B. Create and access SuperSecret from the secrets store in MyRepo.
- C. Create a file with the SuperSecret. information in the .qithub/secrets folder in MyRepo.
- D. Create MyRepo_SuperSecret in GitHub encrypted secrets to specify the scope to MyRepo.
Answer: D
Explanation:
To scope a secret to a specific repository, you can create a new secret with a name likeMyRepo_SuperSecretin thesecretssection of theMyReporepository's settings. This ensures that the secret is specific to that repository and can be used within its workflows.
NEW QUESTION # 64
Which scopes are available to define custom environment variables within a workflow file? (Choose three.)
- A. the entire stage, by using env at the top of the defined build stage
- B. all jobs being run on a single Actions runner, by using runner.env at the top of the workflow file
- C. a specific step within a job, by using jobs.<job_id>.steps[*].env
- D. the contents of a job within a workflow, by using jobs.<job_id>.env
- E. the entire workflow, by using env at the top level of the workflow file
- F. within the run attribute of a job step
Answer: C,E,F
Explanation:
You can define environment variables for the entire workflow by using the env key at the top level of the workflow file. These environment variables will be available to all jobs and steps within the workflow.
Environment variables can also be set within the run attribute of a job step, and these variables will be scoped only to that specific step.
You can set environment variables for specific steps within a job by using jobs.<job_id>.steps[*].env, which allows you to define variables that will only be available to that step.
NEW QUESTION # 65
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 artifacts when referencingfiles produced by a job after a workflow has ended.
- B. Use cachingwhen reusing files that change rarely between jobs or workflow runs.
- 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
Answer: A,B
NEW QUESTION # 66
As a developer, you want to run a workflow from the Actions tab in GitHub. Which YAML snippet should you use to match the interface in this image?
- A.
- B.
- C.
- D.
Answer: A
Explanation:
The first image shows a workflow trigger with an option for the test suite, and the chosen YAML configuration matches this interface. Specifically, the test suite input is defined withtype: choiceand includes the optionvalue: functional, which aligns with the visible UI elements in the first image.
NEW QUESTION # 67
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UPDATED GitHub GitHub-Actions Exam Questions & Answer: https://drive.google.com/open?id=1Wo0ptj8Z3iIM12MSTKprM-dfYQwZ7xRh
