Freelancer.com Devops Engineer Interview Questions, Process, and Tips

Q1. Basics of Devops., Jenkins and basics of kubctl
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Q1. Kubernetes architecture
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Q2. CICD pipeline in jenkins
Ans. 
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
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Q1. Regarding AWS networking, Jenkins, Terraform, Linux
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Q2. Write dockerfile to run python script.
Ans. 
Dockerfile to run a Python script
• Use a base Python image as the starting point

• Copy the Python script into the container

• Specify the command to run the Python script
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Q3. Run vs CMD vs ENTRYPOINT.
Ans. 
Run vs CMD vs ENTRYPOINT are Docker instructions used to specify commands to be executed when a container is launched.
• RUN is used to execute commands during the build of the image

• CMD is used to provide default arguments for the entrypoint or to specify the command to run when the container starts

• ENTRYPOINT is used to specify the executable that will run when the container starts, and CMD can be used to provide addition...read more
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Q4. How to upgrade kubernetes cluster version
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To upgrade a Kubernetes cluster version, you can use kubeadm tool or manually update each component.
• Use kubeadm tool to upgrade the cluster version

• Check the current version of the cluster using kubectl

• Upgrade the control plane components first, followed by worker nodes

• Ensure compatibility of applications with the new version before upgrading

• Backup important data and configurations before upgrading
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Q5. Terraform file to provision ec2 instance and import existing instance with their configuration
Ans. 
Use Terraform to provision ec2 instance and import existing instance with their configuration
• Create a Terraform configuration file with necessary resources like aws_instance

• Use the import command to import existing instance with their configuration

• Update the Terraform configuration file with the imported instance details

• Apply the Terraform configuration to provision the ec2 instance
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Aptitude was mix of questions from logical reasoning, english grammar to simple numerical problems.

Q1. Questions were regarding projects done.
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Questions based on general aptitude

Q1. Tell me more about yourself Where you see yourself in 5 year ?
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Q1. What is devops? Latest tools in devols
Ans. 
DevOps is a software development methodology that combines software development with IT operations to improve collaboration and efficiency.
• DevOps focuses on automating and streamlining the software development process.

• It emphasizes communication and collaboration between development and operations teams.

• Some popular DevOps tools include Jenkins, Docker, Kubernetes, Ansible, and Git.

• These tools help in continuous integr...read more
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Q1. Create cicd pipeline
Ans. 
Creating a CI/CD pipeline involves automating the process of building, testing, and deploying code changes.
• Set up version control system (e.g. Git)

• Choose a CI/CD tool (e.g. Jenkins, GitLab CI)

• Define stages for build, test, and deploy

• Integrate with testing frameworks (e.g. JUnit, Selenium)

• Automate deployment to different environments (e.g. Dev, QA, Prod)
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Q1. Tell me about git rebase,terraform distroy
Ans. 
Git rebase is used to reapply commits on top of another base tip. Terraform destroy is used to delete all the resources managed by Terraform.
• Git rebase is used to rewrite commit history by moving, combining, or deleting commits.

• Terraform destroy is used to delete all the resources created by Terraform.

• Git rebase can be used to squash multiple commits into one for cleaner history.

• Terraform destroy should be used with ca...read more
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Q1. Indepth analysis on pipeline,load balancer,tenet,azure Active directory
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Q1. What are aws s3 types
Ans. 
AWS S3 offers various storage classes to optimize cost and performance based on data access patterns.
• S3 Standard: General-purpose storage for frequently accessed data.

• S3 Intelligent-Tiering: Automatically moves data between two access tiers based on changing access patterns.

• S3 Standard-IA: Infrequent access storage for data that is less frequently accessed but requires rapid access when needed.

• S3 One Zone-IA: Lower-cos...read more
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Q2. Se ia , etc
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