Chetu Devops Engineer Interview Questions and Answers

Q1. Past experience in devops
Ans. 
I have 5 years of experience in implementing DevOps practices in various organizations.
• Implemented CI/CD pipelines using tools like Jenkins, GitLab CI, and CircleCI

• Automated infrastructure provisioning with tools like Terraform and Ansible

• Managed containerized applications using Docker and Kubernetes

• Monitored and maintained production systems with tools like Prometheus and Grafana
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Q2. Scripted jeninsfile for CI
Ans. 
A scripted Jenkinsfile is a Groovy script that defines the pipeline for Continuous Integration (CI).
• Use 'pipeline' block to define the stages of the CI pipeline

• Utilize 'stage' block to specify individual stages within the pipeline

• Leverage 'steps' block to define the actions to be executed within each stage

• Use 'node' block to allocate a Jenkins agent for running the pipeline

• Utilize 'checkout' step to fetch the source co
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Q1. WAF implementation in AWS
Ans. 
Implementing a Web Application Firewall (WAF) in AWS for enhanced security.
• Use AWS WAF to protect web applications from common web exploits.

• Create rules to filter and monitor HTTP and HTTPS requests.

• Integrate AWS WAF with other AWS services like CloudFront or API Gateway for comprehensive protection.
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Q2. Write a CD jenkinsfile
Ans. 
A CD Jenkinsfile automates the Continuous Delivery process in Jenkins.
• Define stages for build, test, deploy

• Use declarative syntax for pipeline

• Include steps for version control, artifact management

• Utilize plugins for notifications, approvals

• Implement error handling and rollback mechanisms
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Q1. It was about terraform
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Q2. It was about kubernetes
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It was moderately tough.

Q1. Good DSA knowledge will help
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Q1. DSA knowledge and Computer fundamentals knowledge.
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Q1. Be confident and speak honestly, will help.
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Q1. Linux AWS git jenkins
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Q1. What is DaemonSet
Ans. 
DaemonSet ensures that all or some nodes run a copy of a Pod
• DaemonSet is a Kubernetes resource that ensures a copy of a Pod is running on all or some nodes in a cluster

• It is useful for running a single instance of a Pod on every node in a cluster

• DaemonSet is commonly used for monitoring, logging, and other system-level services

• Example: Running a logging agent on every node in a Kubernetes cluster
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Q2. What is deployment and difference between statefulset and deployment
Ans. 
Deployment is a way to manage and update applications in Kubernetes. StatefulSet is used for stateful applications with unique identities.
• Deployment is used for stateless applications, while StatefulSet is used for stateful applications.

• Deployment manages replica sets and ensures a desired state is maintained.

• StatefulSet maintains a unique identity for each pod, making it suitable for applications that require stable a...read more
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Q1. Question on the skills that you have written in resume
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Q1. What the interview panel feels like is that everyone who attend the interview feels like fake candidates, fake candidates may have made your face but they should not suspected that everyone feels like fake...read more
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Q1. What are your salary expectations and previous experience?
Ans. 
My salary expectations are in line with industry standards based on my 5 years of experience in DevOps roles.
• Salary expectations are based on industry standards and my level of experience

• I have 5 years of experience in DevOps roles

• Previous salary range was $80,000 - $100,000 per year
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Q1. Debugging a broken Dockerfile
Ans. 
Debugging a broken Dockerfile involves identifying and fixing errors in the Dockerfile code.
• Check for syntax errors in the Dockerfile code

• Ensure that all necessary dependencies are properly installed

• Use the 'docker build' command with the '--debug' flag to get more detailed error messages

• Check the build logs for any specific error messages or warnings

• Consider using a Dockerfile linter to identify common issues
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