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Using Push Protection to Stop Secrets from Reaching a Repository

Your organization uses GitHub Enterprise and wants to prevent secrets (e.g., API keys) from being pushed to any repository. Which GitHub feature should you enable?

Quick Answer

Push protection for secret scanning is the feature built specifically to stop secrets before they land: it intercepts a push containing a recognized secret pattern — an API key, a token — at the point of push itself and rejects it, rather than just flagging it after the fact the way passive secret-scanning alerts do.

⚠ Common exam trap

Test-takers frequently confuse 'secret scanning' (passive detection) with 'push protection' (active prevention), assuming that enabling GitHub Advanced Security secret scanning alone will block pushes, when in fact push protection is a separate toggle that must be explicitly enabled.

Answer choices

Why each option matters

Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.

Correct answer & explanation

Push protection for secret scanning

Push protection for secret scanning (Option C) is the correct answer because it actively blocks pushes that contain known secrets (e.g., API keys, tokens) at the client side, preventing them from ever reaching the remote repository. This is a dedicated feature of GitHub Advanced Security that integrates with pre-receive hooks to scan commits in real time, rejecting the push if a secret pattern is detected. It is specifically designed to prevent secrets from being pushed, unlike passive scanning which only alerts after the fact.

Answer analysis

Option-by-option breakdown

For each option: why learners choose it and why it is or isn't the right answer here.

  • Repository rulesets

    Why it's wrong here

    Rulesets can enforce various policies, but push protection is the specific feature for secrets.

  • GitHub Advanced Security secret scanning

    Why it's wrong here

    Secret scanning detects secrets after they are committed, but does not block pushes.

  • Push protection for secret scanning

    Why this is correct

    Push protection prevents commits with secrets from being pushed.

  • Branch protection rules requiring signed commits

    Why it's wrong here

    Signed commits verify identity but do not block secrets.

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Same concept, more angles

1 more way this is tested on AZ-400

These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.

Variation 1. Your team uses Azure Repos and needs to prevent secrets from being committed to the repository. Which built-in feature should you enable?

medium
  • A.Enable GitHub secret scanning
  • B.Enable Azure Policy to scan repositories
  • C.Configure a pre-commit hook with a secret scanning tool
  • D.Enable push protection in Azure Repos

Why D: Push protection in Azure Repos is a built-in feature that scans commits for high-confidence secrets (e.g., Azure service connection strings, SSH keys, and other credential patterns) and blocks the push if a secret is detected. This prevents secrets from ever reaching the remote repository, enforcing security at the server side without requiring client-side configuration.

JA

Written by Johnson Ajibi, MSc IT Security

Senior Network & Security Engineer · founder of Courseiva

This AZ-400 practice question is part of Courseiva's free Microsoft certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the AZ-400 exam.