Git Interview Questions & Answers | Intermediate to Advanced | DevOps Engineer 🔥

If you are preparing for a DevOps Engineer or AWS DevOps interview, this video is for you.

In this video, I have explained 50 Intermediate to Advanced Git interview questions with clear and practical answers. These questions are based on real interview experiences from top companies like Google, Microsoft, TCS, Infosys, Wipro, and PwC.

🔹 What you’ll learn in this video:

How Git works internally

Branching, merging, rebase vs merge

Reset, revert, reflog explained

Real-world Git scenarios used in DevOps

Git best practices in CI/CD pipelines

This video is ideal for 2–5 years experienced DevOps engineers, AWS DevOps engineers, and anyone preparing for product-based or service-based company interviews.

👉 Watch till the end to gain confidence in Git interview questions.

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🔹 Core Git Concepts (Q1–Q10)
1. What is the difference between Git and GitHub/GitLab/Bitbucket?
2. Explain the Git object model (blob, tree, commit, tag).
3. How does Git ensure data integrity?
4. What is HEAD in Git?
5. Difference between working directory, staging area, and repository.
6. What is the difference between git fetch and git pull?
7. What is a detached HEAD state? How do you recover from it?
8. Explain bare repository and its use case.
9. How does Git internally store changes: snapshots vs diffs?
10. What happens internally when you run git commit?

🔹 Branching & Merging (Q11–Q20)
1. What is the difference between merge and rebase?
2. When should you avoid rebasing?
3. Explain fast-forward merge vs three-way merge.
4. How do you resolve merge conflicts?
5. What is a long-lived branch vs short-lived branch?
6. How does Git decide which merge strategy to use?
7. What is octopus merge?
8. How do you rename a branch locally and remotely?
9. Difference between origin/main and main.
10. How do you delete a remote branch safely?

🔹 Reset, Revert, Checkout (Q21–Q30)
1. Difference between git reset --soft, --mixed, --hard.
2. Difference between git revert and git reset.
3. When would you prefer revert over reset?
4. Explain git checkout vs git switch vs git restore.
5. How do you undo a commit that is already pushed?
6. How do you recover a deleted branch?
7. What is git reflog and when is it useful?
8. How do you remove a file from Git history?
9. Difference between amend commit and new commit.
10. What happens if two developers push to the same branch simultaneously?

🔹 Advanced Git Operations (Q31–Q40)
1. What is cherry-pick and its real-world use case?
2. Explain stash and its different options.
3. What is squash commit and why is it used?
4. How do you rewrite Git history safely?
5. What is git bisect and how does it help debugging?
6. Explain submodules and their challenges.
7. Difference between submodule and subtree.
8. How do you handle large binary files in Git?
9. What is shallow clone?
10. How do you migrate a project from SVN to Git?

🔹 Git in DevOps & CI/CD (Q41–Q50)
1. How is Git used in CI/CD pipelines?
2. How do you enforce branch protection rules?
3. Explain GitFlow workflow.
4. Difference between GitFlow and Trunk-Based Development.
5. How do you manage secrets in Git?
6. What Git strategy do you use for production hotfixes?
7. How do you roll back production code using Git?
8. How do you manage multiple environments using Git?
9. How do you reduce merge conflicts in a large team?
10. Describe a real Git production issue you faced and how you fixed it.