deVops pathshala Blog – Notes for Me & You

🟢 Basic Level  General Concepts What is DevOps and why is it important? What is the difference between DevOps and Agile? Explain the DevOps lifecycle (Plan → Code → Build → Test → Release → Deploy → Operate → Monitor). What is CI/CD? How do they differ? What is the difference between Continuous Delivery and Continuous Deployment? Version Control What is Git? How is it different from SVN? What is the difference between git merge and git rebase ? What is a pull request / merge request? How do you resolve a merge conflict in Git? Linux/OS Basics What are inodes in Linux? How do you check disk usage in Linux? ( df , du ) What is the difference between a process and a thread? What does chmod 755 mean? How do you check running processes? ( ps , top , htop ) 🟡 Intermediate Level CI/CD & Automation What tools have you used for CI/CD? (Jenkins, GitHub Actions, GitLab CI, CircleCI) Explain a Jenkins pipeline. What is a Jenkinsfile ? What is the difference between a declarative...

  1. Basic Level EC2 Interview Questions ये वो सवाल हैं जो किसी भी fresher या beginner से ज़रूर पूछे जाते हैं। 1.What is Amazon EC2? 2.What are the benefits of using EC2? 3.What is the difference between EC2 and a physical server? 4.What are EC2 instance types? Name a few. 5.What is an AMI (Amazon Machine Image)? 6.How do you launch an EC2 instance? 7.What is the difference between On-Demand, Reserved, and Spot Instances? 8.What is the difference between EBS and Instance Store? 9.What is Elastic IP in EC2? 10.What is the default limit of EC2 instances per region? 11.Can we stop and restart a Spot Instance? 12.How to connect to EC2 instance using SSH? 13.What is Key Pair in EC2? 14.What is the difference between public and private IP? 15.What is the difference between rebooting and stopping an EC2 instance? 2. Intermediate Level EC2 Interview Questions ये तब पूछे जाते हैं जब interviewer देखना चाहता है कि आपको practical और configuration का knowledge है। 16.What is the difference betw...