NextGen Invent Senior Devops Engineer Interview Questions and Answers

Q1. Jenkins ci-cd meaning
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Q2. Grep and egrep in linux
Ans. 
grep and egrep are command line tools used for searching text patterns in files in Linux.
• grep is a basic command line tool for searching text patterns in files.

• egrep is an extended version of grep with support for regular expressions.

• grep is case-sensitive by default, use -i flag for case-insensitive search.

• egrep supports extended regular expressions without escaping special characters.

• Example: grep 'pattern' file.txt

• E
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Q3. How to print forth coloumn
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Use awk command to print the fourth column of a file
• Use awk command with '{print $4}' to print the fourth column of a file

• Example: awk '{print $4}' file.txt
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Q1. What is your job role.
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As a Sr Devops Engineer, my job role involves managing and improving the infrastructure, deployment pipelines, and automation processes to support development teams.
• Managing and maintaining infrastructure using tools like Terraform, Ansible, or Kubernetes

• Designing and implementing CI/CD pipelines for automated testing and deployment

• Monitoring system performance and troubleshooting issues

• Collaborating with development t...read more
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Q2. My company migrate on- premises server to aws rds what points to remeber during this migration.
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Q1. Jenkins CI-CD Pipelines how to declare that and how to integrate which plung'ins to integrated with jenkins actually plung'ins name.
Ans. 
Jenkins CI-CD pipelines are declared using Jenkinsfile and can be integrated with various plugins for additional functionality.
• Declare Jenkins CI-CD pipelines using Jenkinsfile in the root directory of the project.

• Integrate plugins like Git, Docker, Slack, SonarQube, etc., for specific functionalities.

• Use declarative syntax or scripted syntax in Jenkinsfile based on requirements.

• Configure stages, steps, post actions, a...read more
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Q2. Write terra form to create multipal EC2 instances.
Ans. 
Use Terraform to create multiple EC2 instances
• Use Terraform's EC2 instance resource to define the instances

• Specify the number of instances using count parameter

• Use a for_each loop to create multiple instances with unique names and configurations
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Q3. Write to playbook for spinup to Tom cat server.
Ans. 
Playbook for spinning up a Tomcat server
• Install Java on the server

• Download and extract Tomcat

• Configure Tomcat server.xml file

• Start the Tomcat server

• Verify Tomcat is running
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Q1. Walk through on recent technical skills
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I have recently worked on implementing CI/CD pipelines using Jenkins, Docker, and Kubernetes.
• Implemented Jenkins pipelines for automating build, test, and deployment processes

• Utilized Docker for containerization of applications and services

• Managed Kubernetes clusters for container orchestration

• Integrated monitoring and logging tools like Prometheus and ELK stack
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Q1. Python programming
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Q2. Aws architecture
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Q3. Terraform scripts
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Q1. Basics in resume and all the projects you have worked on mostly.
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Q1. Terraform templates to create aks
Ans. 
Terraform templates can be used to create AKS clusters.
• Use the azurerm_kubernetes_cluster resource in Terraform to create an AKS cluster.

• Specify the required parameters such as resource group, location, node count, and node size.

• Use the azurerm_kubernetes_service_principal resource to create a service principal for the AKS cluster.

• Use the azurerm_kubernetes_cluster_node_pool resource to create node pools with specific ...read more
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Q2. OpenShift Source to Image
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Q3. Jenkins pipeline end to end
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Q4. Ansible taks done in project
Ans. 
Ansible was extensively used in the project for configuration management and automation.
• Automated deployment of applications using Ansible playbooks

• Configuration management of servers using Ansible roles

• Automated backup and restore of databases using Ansible scripts

• Automated provisioning of infrastructure using Ansible modules
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Q5. Handled team size and DevSecOps
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Q1. Shell script concepts
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Q2. Istio Service Mesh , Kubernetes Troubleshooting
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Q3. Docker file creation
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