How would you answer an interview scenario involving GitHub Actions workflows?

In an interview, I would first define GitHub Actions workflows and the problem it solves, then explain how I would grant minimal permissions, pin or review third-party actions, use environments for protected deployments, cache safely, separate trusted and untrusted code paths, and keep workflows reusable where duplication is high. I would also call out the main failure mode: running privileged secrets or write tokens in workflows triggered by untrusted pull-request code can expose credentials or allow repository modification. Finally, I would describe how I would test, monitor, and safely roll back or recover the solution.