Top DevOps tools Interview Questions

• How do you take DevOps approach with Amazon Web Services?
• What is the typical DevOps workflow you use in your organization?
• What are the main benefits of DevOps?
• What are the popular DevOps tools that you use?
• What are the benefits of Continuous Integration (CI)?
• What are the best practices of Continuous Integration (CI)?
• What is CICD in DevOps?
• How does CloudFormation work in AWS?
• What are the main features of AWS OpsWorks Stacks?
• How will you run a script automatically when a developer commits a change into GIT?
• What are the main use cases of Ansible?
• What is Docker Hub?
• What is Multi-factor authentication?
• What are the main benefits of Nagios?
• What are the options for security in Jenkins?
• What is a Recipe in Chef?
• What are the main benefits of Ansible?
• What is Chaos Monkey in DevOps?
• How do you perform Test Automation in DevOps?
• What is Puppet?
• What is the use of Kubernetes?
• What is the architecture of Kubernetes?
• What are the Three Ways of DevOps?
• What are the main services of AWS that you have used?
• Why GIT is considered better than CVS for version control system?
• What is the difference between a Container and a Virtual Machine?
• What is a REST service?
• What is Serverless architecture?
• What are the main principles of DevOps?
• How does Kubernetes provide high availability of applications in a Cluster?
• What is a Deployment Pipeline?
• What is Self-testing Code?
• What are the common use cases of Docker?
• How will you remove an image from Docker?
• What is a Docker container?
• How many heads can you create in a GIT repository?
• What are the security benefits of using Container based system?
• What are the main features of Docker Hub?
• Can we lose our data when a Docker Container exits?

For Answers :Devops Interview Questions and Answers

• What is Chef?
• What is a Resource in Chef?
• What is a Recipe in Chef?
• What is a Node in Chef?
• How does a Cookbook differ from a Recipe in Chef?
• What is run-list in Chef?
• What is the role of Starter Kit in Chef?
• What are the main benefits of Chef?
• What is the architecture of Chef?

For Answers See here: Chef Interview Questions and Answers

• What is Docker?
• What is Docker image?
• How is Docker different from other container technologies?
• What is Docker Machine?
• Why do we use Docker Machine?
• What is Docker Hub?
• What are the main features of Docker Hub?
• What is Docker Entrypoint?
• What is Docker Swarm?
• What are the features of Docker Swarm?
• What are the three main steps of Docker Compose?
• What are the common use cases of Docker?
• What are the main features of Docker-compose?
• What is the most popular use of Docker?
• What is the difference between Docker commands: up, run and start?
• How will you take backup of Docker container volumes in AWS S3?
• What is the basic architecture behind Docker?
• Why do we use Docker on top of a virtual machine?
• What is Build cache in Docker?
• What are the main benefits of using Docker?

For Answers See here: Docker Interview Questions and Answers

• What is GIT?
• What is GIT stash?
• What is GIT version control?
• What is GIT stash drop?
• What is GIT protocol?
• What is the git clone?
• What is git config?
• What is a conflict’ in git?
• What is git grep?
• What is a repository in GIT?
• What is the difference between GIT and SVN?
• What are the advantages of using GIT?
• Why GIT better than Subversion?
• Mention some of the best graphical GIT client for LINUX?
• What is Subgit? Why to use Subgit?
• What is the ‘git checkout’ in git?
• What is the ‘git rm’?
• What is the ‘git stash apply’?
• What is shortlog in GIT?
• What is a commit message in GIT?
• What are the disadvantages of GIT?
• What is a bare repository in GIT?
• Why do we use git log command?
• What is merge conflict in GIT?
• What is Rebasing in GIT?
• What is a pull request in GIT?
• What is git clone in GIT?

For Answers See here:GIT Interview Questions and Answers

• What is Jenkins?
• What is continuous integration?
• What is the requirement for using Jenkins?
• What are the advantages of Jenkins?
• How you can move or copy Jenkins from one server to another?
• What are the commands you can use to start Jenkins manually?
• Mention some of the useful plugins in Jenkin?
• How you can deploy a custom build of a core plugin?
• How you can setup Jenkins jobs?
• How can you clone a Git repository via Jenkins?
• Which SCM tools Jenkins supports?
• What are the commands you can use to start Jenkins manually?
• How will you secure Jenkins?
• What are the various ways in which build can be scheduled in Jenkins?

For Answers See here:Jenkins Interview Questions and Answers

• What is Maven?
• What are the aspects Maven managing?
• What is POM?
• What information does POM contain?
• What is Maven artifact?
• What is Build portability in Maven?
• Explain the difference phases in Maven build Lifecycle.
• What phases does a Site Lifecycle consist?
• Why are Maven Plugins used?
• What are the types of Maven Plugins?
• What is a system dependency?
• What is the result of jar:jar goal in Maven?
• What is local repository?
• What is Central Repository?
• What is Remote Repository?
• What is the difference between a Release version and SNAPSHOT version in Maven?
• What are the different dependency scopes in Maven?
• What is the difference between Inheritance and Multi-module in Maven?
• What are the differences between Gradle and Maven?
• What are the main advantages of Maven?

• What is Nagios?
• How does Nagios work?
• What are the main features of Nagios?
• What are Plugins in Nagios?
• What is NRPE (Nagios Remote Plugin Executor) in Nagios?
• What do you mean by passive check in Nagios?
• What is State Stalking in Nagios?
• When Does Nagios Check for external commands?
• What is the difference between Active and Passive check in Nagios?
• How does Nagios help with Distributed Monitoring?
• Explain Main Configuration file of Nagios and its location?
• What are the three main variables that affect recursion and inheritance in Nagios?
• What is meant by saying Nagios is Object Oriented?
• What is a Passive check in Nagios?

For Answers See here:Nagios Interview Questions and Answers

• What is Puppet?
• What is Manifests?
• What is Module and How it is different from Manifest?
• What is Facter?
• What is Puppet Kick?
• What is MCollective?
• Does Puppet runs on windows?
• How should I upgrade Puppet and Facter?
• What is the architecture of Puppet?
• What are the main use cases of Puppet Enterprise?

For Answers See here:Puppet Interview Questions and Answers

• What is ansible?
• What Ansible can do?
• How Ansible Works?
• What are the advantages of Ansible?
• What is Ansible Playbooks?
• Do we have any Web Interface/ Rest API etc for this?
• What is Ad-hoc commands in Ansiable?
• How to write an Ansible ad-hoc command?
• How do I submit a change to the documentation in Ansible?
• How do I copy files recursively onto a target host in Ansible?
• How do I generate crypted passwords for the user module in Ansible?
• How do I see the entire inventory vars defined for my host?
• How can you speed up management inside in EC2?
• What is ask_vault_pass in Ansible?

For Answers See here: Ansible  Interview Questions and Answers