Git & GitHub Interview Questions & Answers 🧑💻🌐
1️⃣ What is Git?
A: Git is a distributed version control system to track changes in source code during development.
2️⃣ What is GitHub?
A: GitHub is a cloud-based platform that hosts Git repositories and supports collaboration, issue tracking, and CI/CD.
3️⃣ Git vs GitHub
• Git: Version control tool (local)
• GitHub: Hosting service for Git repositories (cloud-based)
4️⃣ What is a Repository (Repo)?
A: A storage space where your project’s files and history are saved.
5️⃣ Common Git Commands:
• git init → Initialize a repo
• git clone → Copy a repo
• git add → Stage changes
• git commit → Save changes
• git push → Upload to remote
• git pull → Fetch and merge from remote
• git status → Check current state
• git log → View commit history
6️⃣ What is a Commit?
A: A snapshot of your changes. Each commit has a unique ID (hash) and message.
7️⃣ What is a Branch?
A: A separate line of development. The default branch is usually main or master .
8️⃣ What is Merging?
A: Combining changes from one branch into another.
9️⃣ What is a Pull Request (PR)?
A: A GitHub feature to propose changes, request reviews, and merge code into the main branch.
🔟 What is Forking?
A: Creating a personal copy of someone else’s repo to make changes independently.
1️⃣1️⃣ What is .gitignore?
A: A file that tells Git which files/folders to ignore (e.g., logs, temp files, env variables).
1️⃣2️⃣ What is Staging Area?
A: A space where changes are held before committing.
1️⃣3️⃣ Difference between Merge and Rebase
• Merge: Keeps all history, creates a merge commit
• Rebase: Rewrites history, makes it linear
1️⃣4️⃣ What is Git Workflow?
A: A set of rules like Git Flow, GitHub Flow, etc., for how teams manage branches and releases.
1️⃣5️⃣ How to Resolve Merge Conflicts?
A: Manually edit the conflicted files, mark resolved, then commit the changes.
