ValueLabs Devops Engineer Interview Questions and Answers

Kubernetes Architecture is a container orchestration platform that manages the deployment, scaling, and operation of application containers.

• Kubernetes follows a master-slave architecture with a master node and multiple worker nodes.

• The master node controls the cluster and schedules workloads, while the worker nodes run the actual containers.

• Key components of Kubernetes architecture include Pods, Nodes, Services, and Co...read more

I handle container orchestration using tools like Kubernetes and Docker Swarm.

• Utilize Kubernetes for managing containerized applications

• Use Docker Swarm for orchestrating containers across multiple hosts

• Implement service discovery and load balancing for efficient orchestration

CICD pipeline in Jenkins automates the process of building, testing, and deploying code.

• Jenkins is a popular automation server used for CICD pipelines

• CICD pipeline in Jenkins typically involves stages like build, test, deploy

• Jenkins plugins can be used to integrate with various tools for automation

• Pipeline scripts in Jenkins can be written in Groovy language

Kubernetes architecture is a container orchestration platform that manages containerized applications across a cluster of nodes.

• Kubernetes follows a master-slave architecture with a master node and multiple worker nodes.

• Master node components include API server, scheduler, controller manager, and etcd.

• Worker node components include kubelet, kube-proxy, and container runtime (e.g. Docker).

• Nodes communicate with each oth...read more

Agile methodology is a project management approach that emphasizes flexibility, collaboration, and incremental progress.

• Agile focuses on delivering small, incremental releases and adapting to change quickly.

• It promotes collaboration between cross-functional teams and encourages frequent communication.

• Key principles include customer satisfaction, responding to change, and delivering working software.

• Common agile framewo...read more

Waterfall model is a linear sequential software development process where progress flows in one direction like a waterfall.

• Involves distinct phases such as requirements, design, implementation, testing, and maintenance.

• Each phase must be completed before moving on to the next.

• Changes are difficult to implement once a phase is completed.

• Example: Traditional software development approach.

• Example: Construction projects.

Docker is a containerization platform that allows you to package and run applications in isolated environments.

• Docker is an open-source platform that automates the deployment, scaling, and management of applications.

• It uses containerization technology to create lightweight, portable, and self-sufficient containers.

• Docker images are built using Dockerfiles, which are text files that contain instructions for building the...read more