Tech Interview Questions for Devops Professional – Year 2024
1. What is DevOps Lifecycle?
2. Have you used any Linux Flavors, if yes, which one?
3. What is the command to change the ownership and permission of a file or directory in Linux?
4. How do you manage and view running processes in Linux?
5. What is SSH?
6. What is DNS (Domain Name System), and how does it work?
7. What is NAT (Network Address Translation), and why is it used?
8. Explain the difference between TCP and UDP Protocols?
9. What os Git and how do we use it in DevOps?
10. Explain the workflow of how to push the code from a local machine?
11. How do you revert a commit that you made in your repository?
12. What is a Branch in a Repository?
13. What cloud you are familiar with?
14. What is VPC in cloud?
15. What is the difference between a Private and Public Subnet and what differentiates it?
16. What is the Difference between reserved instance and spot instances?
17. What is CloudFormation (AWS) ?
18. What are the popular IaC tools have you used?
19. What is the difference between Terraform & Ansible?
20. What is a playbook in Ansible?
21. What is a state file in terraform?
22. What is Terraform Remote state backend?
23. What is the Difference between Virtualization and containerization?
24. What problem does Docker Solves?
25. What is Dockerfile and why do we use it?
26. Explain the workflow of how a Docker Container is created?
27. How do you manage multiple Containers?
28. What is Ci and CD in CICD?
29. What CICD tools have you used in the past?
30. How will you create a CICD pipeline to update the website or app on every commit to a particular branch? (mostly asked in the coding test)?
31. Explain staging, production and testing environment.?
32. What is a Blue Green Deployment?
33. Explain Canary Deployment?
34. What is the biggest issue you faced, how did you resolve it.?
35. How do you scale your application? 36. How do you rollback if something fails?
37. How do you automate Deployments? 38. Which tools have you used for automating deployments?
39. Have you written any Jenkins Pipeline from scratch?
40. Mention some plugins you have used in Jenkins?
41. What is CI/CD?
42. How can you create backup and copy files in Jenkins?
43. Assume you have 2 Jenkins jobs. So, the first job completed successfully but the 2nd job failed. What will you do?
44. Can you tell me the process to integrate git with Jenkins?
45. Can you tell me what is DSL in Jenkins?
46. Why we use Jenkins instead of Bamboo? Difference between them?
47. How to deploy a custom build of a code plugin to Jenkins?
48. What is the use of Jenkins home directory?
49. How do take backup of Jenkins Jobs?
50. What is the way to configure Jenkins nodes agent with Jenkins master?
