✅ *CI/CD Pipeline Interview Questions & Answers* ⚙️🚀

1️⃣ What is CI/CD?

A: CI/CD stands for Continuous Integration and Continuous Deployment/Delivery — practices that automate code integration, testing, and deployment.

2️⃣ What is Continuous Integration (CI)?

A: Developers frequently merge code into a shared repo. Each merge triggers automated builds & tests to detect issues early.

3️⃣ What is Continuous Deployment/Delivery (CD)?

• Delivery: Code is automatically prepared for release but needs manual approval.
• Deployment: Code is automatically pushed to production after passing tests.

4️⃣ Key Stages of a CI/CD Pipeline:

1. Code
2. Build
3. Test
4. Release
5. Deploy
6. Monitor

5️⃣ What tools are used in CI/CD?

• CI: Jenkins, GitHub Actions, CircleCI, GitLab CI
• CD: ArgoCD, Spinnaker, AWS CodeDeploy

6️⃣ What is a Build Pipeline?

A: A sequence of automated steps to compile, test, and prepare code for deployment.

7️⃣ What is a Webhook?

A: A trigger that starts the pipeline when new code is pushed to the repository.

8️⃣ What are Artifacts?

A: Output files generated after a build, like JARs, Docker images, etc., stored for deployment.

9️⃣ What is Rollback?
A: Reverting to the previous stable version if a deployment fails.

🔟 Why is CI/CD important?

A: It increases code quality, reduces bugs, speeds up delivery, and ensures smoother collaboration.

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