Pearson GH-200 New Attempt

For JavaScript custom actions, the metadata file supports lifecycle scripts through the runs section. The correct key for a script that runs before the main action entrypoint is pre, and the correct conditional key for controlling whether that pre-script runs is pre-if. Therefore, option B is the only valid metadata structure. GitHub Actions does not use start, start-if, before, or before-if as action metadata keys. Option C is also invalid because pre-if only defines a condition; it cannot contain both a condition and a script reference in one line. In GitHub Actions exam terms, this tests custom action metadata, JavaScript action lifecycle hooks, and conditional execution before the main action logic.

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Creating workflow templates in the organization’s .github repository allows the organization to standardize workflows and make them easily reusable across multiple repositories. This ensures consistency and simplifies maintenance.

Creating reusable actions and workflows that can be called from other workflows helps modularize and standardize automation tasks. These reusable components can be maintained centrally and called from different workflows across repositories.

The correct syntax for specifying a cleanup script to be run after the main entry point is executed in a Docker-based GitHub Action is to use the post key. This ensures that cleanup.sh runs after the main script (main.sh) has completed.

The correct syntax for referencing a versioned action is owner/repository@ref. Therefore, to use version v1 of actions/javascript-action, the workflow step must use actions/javascript-action@v1. The @v1 portion is the ref, which can represent a tag, branch, or commit SHA depending on how the action publisher releases the action. Option A incorrectly treats the version as part of the repository path. Option B invents a separate version: key, which is not how action versions are selected. Option C changes the repository name and does not specify a ref. In GitHub Actions syntax, uses selects an action, and version selection is part of the action reference itself. GitHub examples use the uses: owner/action-name@ref form.