DevOps / Github Interview questions

What are branch protection rules in GitHub?

Branch protection rules restrict what can happen to a specific branch (commonly main), such as requiring pull requests before merging, requiring passing status checks, requiring a minimum number of approving reviews, and blocking force pushes or deletions.

These rules apply regardless of a user's general write access to the repository; even someone with admin permissions can be blocked from pushing directly unless the rule explicitly allows it. Combined with required status checks tied to a GitHub Actions workflow, protection rules make sure code can't reach a protected branch without passing both automated tests and human review.

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Branch protection rules can require: Passing status checks and a minimum number of approvals before merge

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Nothing; they are purely cosmetic labels

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Deleting the branch after every commit

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Do branch protection rules apply to repository admins? No, admins always bypass every rule automatically

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Yes, unless the rule is explicitly configured to exempt them

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Only on private repositories

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