GitHub Actions Certification Exam Traps: OIDC, Secrets, and Concurrency
The trickiest GitHub Actions Certification exam questions involve pull_request_target security, GITHUB_TOKEN permissions, OIDC token exchange, secrets in reusable workflows, environment protection vs branch protection, and concurrency cancel behavior. This post exposes every trap.
The GitHub Actions Certification exam is not primarily testing whether you can write a workflow from memory. It is testing whether you understand the why behind design choices — and whether you can spot what goes wrong when a workflow is misconfigured. This post catalogs the most dangerous exam traps: the questions where an answer looks obviously correct but …
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