IAMOPS Devops Engineer Interview Questions and Answers

CICD stands for Continuous Integration/Continuous Deployment. Jenkinsfile functions include stages, steps, post, and more.

• CICD stands for Continuous Integration/Continuous Deployment

• Jenkinsfile functions include stages, steps, post, agent, environment, and more

• Stages define a series of tasks to be executed in a pipeline

• Steps define individual actions within a stage

• Post defines actions to be taken after the pipeline has...read more

Kubernetes is an open-source container orchestration platform for automating deployment, scaling, and management of containerized applications.

• Kubernetes helps in automating the deployment, scaling, and management of containerized applications.

• It allows for easy scaling of applications by adding or removing containers based on demand.

• Kubernetes provides features like service discovery, load balancing, and self-healing ...read more

Workspaces in Docker are isolated environments where developers can work on different projects without affecting each other.

• Workspaces allow developers to have separate environments for each project, preventing conflicts between dependencies.

• Each workspace has its own set of containers, volumes, and networks, ensuring isolation.

• Developers can easily switch between workspaces to work on different projects.

• Workspaces are...read more

Cost optimization in DevOps is achieved through efficient resource utilization, automation, and continuous monitoring.

• Implementing auto-scaling to dynamically adjust resources based on demand

• Using containerization to maximize resource utilization and reduce costs

• Leveraging cloud services for pay-as-you-go pricing model

• Implementing cost monitoring tools to identify and eliminate wasteful spending

• Optimizing code and infr...read more

Monitoring is done using Prometheus and Grafana. Prometheus collects metrics and Grafana visualizes them.

• Prometheus is an open-source monitoring and alerting toolkit

• It collects metrics from monitored targets by scraping HTTP endpoints

• Grafana is a visualization tool that creates dashboards for the collected metrics

• It allows users to create graphs, charts, and alerts based on the data from Prometheus

Persistent volume is a storage volume that exists beyond the life cycle of a container.

• Persistent volumes are used to store data that needs to persist even if the container is deleted or recreated.

• They are decoupled from the container and can be attached to different containers.

• Examples include network-attached storage (NAS), cloud storage, and local storage.

• Persistent volumes are managed by the storage administrator r

PersistentVolumes (PVs) in Kubernetes can be attached and detached.

• PersistentVolumes (PVs) can be attached to pods using PersistentVolumeClaims (PVCs).

• PVs can be detached from pods when no longer needed.

• Examples of PV types include NFS, iSCSI, and AWS EBS.

When you search 'google.com', it will redirect you to the Google homepage.

• Typing 'google.com' in the browser's address bar will take you to the Google search engine homepage.

• You can also directly search for 'google.com' in the Google search bar to access the Google homepage.

• Google.com is the domain name for the Google search engine.

• Google.com may also redirect to localized versions of Google based on the user's locatio

traceroute is a command-line tool used to trace the route that packets take from your computer to a destination server.

• traceroute command is used to track the path that packets take to reach a destination server

• It shows the IP addresses of the routers that the packets pass through

• It also displays the round-trip time for each hop

• Example: traceroute google.com

A pipeline is a series of automated steps that allow for the continuous integration and delivery of software.

• A pipeline typically includes stages such as building, testing, and deploying code.

• Tools like Jenkins, GitLab CI/CD, and AWS CodePipeline are commonly used for creating pipelines.

• Pipelines help in automating the software development process and ensuring faster delivery of updates.

• Provisioner in Terraform is a to...read more

CI/CD process automates the building, testing, and deployment of code changes.

• Continuous Integration (CI) involves automatically building and testing code changes frequently.

• Continuous Deployment (CD) involves automatically deploying code changes to production.

• CI/CD pipelines use tools like Jenkins, GitLab CI/CD, or CircleCI to automate the process.

• Automated testing is a key component of CI/CD to ensure code quality.

• CI...read more