Git essentials check

Ten questions on the git model, daily workflow, and safe undo.

Pass mark: 70% · 10 questions

1. 1. The staging area (index) is…

   A draft of your next commit that you build with git addA backup of the remoteWhere deleted files go

2. 2. A branch in git is fundamentally…

   A full copy of the projectA movable pointer to a commitA zip of your changes

3. 3. You committed a bad change and ALREADY PUSHED to the shared branch. Safest fix?

   git reset --hard and force pushgit revert <hash> and pushDelete the repository

4. 4. git pull is equivalent to…

   fetch + mergepush + mergeclone + checkout

5. 5. What does 'git checkout -b hotfix' do?

   Deletes branch hotfixCreates branch hotfix AND switches to itRenames the current branch

6. 6. A merge conflict means…

   The repository is corruptedThe same lines changed on both branches and a human must chooseYou must start the branch over

7. 7. You accidentally committed a password and pushed. What's true?

   Deleting the file in a new commit removes it from historyThe secret is compromised — rotate itGitHub removes it automatically

8. 8. Which file keeps build junk and secrets out of the repo?

   .gitignoreREADME.md.gitconfig

9. 9. Select ALL that belong in an infra repo's PR pipeline:

   Automated tests / lintterraform plan output posted for reviewersForce-pushing to main

10. 10. git reflog is useful because…

    It shows every position HEAD has had — recovering 'lost' commitsIt cleans old branchesIt compresses the repo