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...

  Subscribe YouTube Channel @devops-pathshal a   1. What is Docker ? Ans:- Docker is a platform that allows you to package an application and all its dependencies into lightweight portable containers. 2. What are Containers ? Ans:- Containers are lightweight, isolated environment that package an application along with all dependencies so it run consistently on any system. 3. What is the difference between a container and a Virtual Machine ? Ans:- Containers are lightweight because they share the host operating system, while virtual machine are heavy because they run their own full operating system. Containers start very quickly, use fewer resources and are ideal for microservices. Virtual machines provide stronger isolation but require more RAM and CPU since each VM containers a full OS. So overall, containers are fast and efficient, whereas VMs are heavier but more isolated. 4. What are docker engine ? Ans:- Docker Engine is the core component of  Docker that runs and ma...

  🟢 Basic Kubernetes Interview Questions What is Kubernetes? Why do we use Kubernetes? Difference between Docker and Kubernetes? What is a Pod in Kubernetes? What is a Node in Kubernetes? What is a Namespace? What is a Deployment in Kubernetes? What is a Service in Kubernetes? Types of Services in Kubernetes? What is a Kubelet? What is a Kubernetes Master Node? What are Labels and Selectors? What is ReplicaSet? What is the difference between ReplicaSet and Deployment? What is kubectl? (common commands) What are ConfigMaps? What are Secrets? Difference between Secret and ConfigMap? What is ETCD? What is Scheduler? What is Container Runtime in Kubernetes? 🟡 Intermediate Kubernetes Questions Difference between NodePort, ClusterIP, LoadBalancer? What is Ingress and Ingress Controller? What is Horizontal Pod Autoscaler (HPA)? What are taints and tolerations? What is Node Affinity vs Pod Affinity? What is DaemonSet? What is StatefulSet? Difference between StatefulSet and Deployment? Wh...