How do you specify the port mapping for a service container in a workflow?

Using the `runs-on` key to specify the port

Using the `ports` key under the service definition

Using the `expose` key under the service definition

Using the `env` key to set the port number

How do you set an environment variable that is available to all steps within a single job?

Using the `::set-output` workflow command inside a step

Using the `::set-env` workflow command inside a step

By exporting it in the shell before running the first step

By defining it in the `env` key at the workflow level

A workflow is triggered by a `workflow_dispatch` event. The user wants to conditionally run a job only when a specific input is provided. Which expression correctly checks the input?

`if: github.event.inputs.deploy == 'true'`

What is the purpose of the `max-parallel` key in the `strategy` section?

To define the maximum number of steps that can run in a job

To specify the maximum number of retries for a failed job

To set the maximum number of environment variables per job

To limit the number of matrix jobs that run simultaneously

A workflow step needs to use a secret value in a command. The team wants to avoid leaking the secret in the logs. Which approach is the safest?

Use the secret directly in the command: `run: echo ${{ secrets.MY_SECRET }}`.

Use the secret in an `if` condition: `if: secrets.MY_SECRET == 'value'`.

Pass the secret as an environment variable and reference it in the command: `env: MY_SECRET: ${{ secrets.MY_SECRET }}` then use `$MY_SECRET` in the command.

Store the secret in a file and use it in the command.

GitHubActions Certification

Domain 1Objective 2

Design and Implement Workflow Structure GH-200 Practice Questions (Page 1)

Part of the Author and manage workflows domain, which accounts for 20-25% of the GH-200 exam.

21questions here

5free pages

10concepts

20-25%of the exam

Questions 1–5

1foundation · easy
How do you specify the port mapping for a service container in a workflow?
Select an answer first
2foundation · easy
How do you set an environment variable that is available to all steps within a single job?
Select an answer first
3application · medium
A workflow is triggered by a `workflow_dispatch` event. The user wants to conditionally run a job only when a specific input is provided. Which expression correctly checks the input?
Select an answer first
4foundation · easy
What is the purpose of the `max-parallel` key in the `strategy` section?
Select an answer first
5application · medium
A workflow step needs to use a secret value in a command. The team wants to avoid leaking the secret in the logs. Which approach is the safest?
Select an answer first

Finished these 5 questions?

Review the revealed explanations, or continue through the curriculum.

Next 5 questions →Back to GH-200

Free Basic Practice is a study aid with revealable answers — not a scored exam. Examers.io is independent and not affiliated with or endorsed by GitHub. “GH-200” is a trademark of its owner, used for identification only.