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Git & GitHub Interview Questions & Answers

 

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.

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