Top 120+ DevOps Interview Questions and Answers For 2023

One needs to define the hook i.e. pre-receive, update, or post-receive hook depending on the exact need that is to be triggered in the script. Firstly, a sanity check or smoke test is a process to determine if it is possible and reasonable to continue testing. Git rebase is a command used to merge the current working branch along with some other branch.

  • Chef allows you to write scripts to quickly provision servers (including instances of Vagrant and/or Docker).
  • Now expect a few questions to test your experience with Docker.
  • DevOps is a culture that allows the development and the operations team to work together.
  • With regard to the error you’re getting, either the key is wrong or the validator username is wrong.

You use it by first telling it a “bad” commit that is known to contain the bug, and a “good” commit that is known to be before the bug was introduced. Then Git bisect picks a commit between those two endpoints and asks you whether the selected commit is “good” or “bad”. It continues narrowing down the range until it finds the exact commit that introduced the change. In the end tell them that branching strategies varies from one organization to another, so I know basic branching operations like delete, merge, checking out a branch etc. A distributed VCS like Git allows all the team members to have complete history of the project so if there is a breakdown in the central server you can use any of your teammate’s local Git repository. Every time you save a new version of your project, your VCS requires you to provide a short description of what was changed. Additionally, you can see what exactly was changed in the file’s content.

How do you handle conflict within your team?

I have experience with public/private clouds, tools like Chef or Puppet, scripting and automation with tools like Python and PHP, and a background in Agile. In a DevOps culture, Nagios is used for Continuous monitoring of systems, services, applications, and business processes, and a few more. When the failure occurs, Nagios alerts the technical staff about the problem, which allows them to begin remediation processes before disruption affects how to become a devops engineer business processes, end-users, or customers. Nagios does not need any explanation about how the unseen infrastructure disruption is affecting the organization’s bottom line. In the DevOps, developers commit to a shared repository after creating code. Continuous Integration tools like Jenkins usually pull the code from this shared repository after change is made in the code. Tools like Selenium do the testing which is as shown in the diagram.

  • They are a streamlined way to create, test, deploy, and redeploy applications in multiple environments.
  • Now the project is ready to go through the phases of DevOps.Version control, integration, testing, deployment, delivery, and monitoring.
  • While this is a rather simple DevOps interview question, knowing the answer to such questions shows that you are serious about your work.
  • Managing data centers with machine-readable definition files, rather than physical hardware configuration.
  • This command uses the binary search algorithm and detects the commit in the project history that has introduced a bug.
  • This question will help you establish if your candidate is going to be able to work well with your team.

But as you go into the details there are some fundamental differences between how various cloud providers handle this segregation. Feature flags are a common way of dealing with incremental product releases inside of CI environments.

How will you approach a project that needs to implement DevOps?

It has to autocomplete support as well as the ability to move around commands pretty quickly. You can say that Selenium IDE is the perfect environment for creating Selenium tests as it provides the perfect environment. Selenium IDE can be seen as an integrated development environment that is useful for Selenium scripts. It can be implemented as a Firefox extension and you can use it to edit, record, and debug tests. The Selenium IDE includes the entire Selenium Core, which allows you to easily record and playback tests in actual environments. In Advanced Analysis, automation is used in areas such as static code analysis, change impact analysis, and scope assessment. This is useful for preventing defects in the first place as well as accomplishing more with each iteration.

  • Whether you are a candidate looking for a DevOps job or a recruiter hoping to hire the best DevOps engineer, the following list of DevOps interview questions and answers will help you.
  • The verify commands determine whether or not the provided condition is true.
  • A branch can be clone to form a Release branch, when the develop branch has acquired enough features for a release.
  • Agile is a set of values and principles about producing like developing software.
  • VCS later allows combining of all the changes in a common version.
  • This tool is simple and easy to use, and also it offers different services in addition to configuration management.

WebLogic Server 8.1 is allowing the selection of the load order for applications. Before deploying applications the WebLogic Server deploys server-level resources i.e. the first JDBC and later JMS.

Name three important DevOps KPIs

Today, with the help of a fully automated deployment pipeline, and also with its constant delivery practices, Etsy has reportedly resulted in more than 50 deployments a day with fewer disruptions. You can use Git and Puppet’s Code Manager app to make sure that the code is in accordance with best practices. You can also run all the Puppet changes through the continuous integration pipeline using the beaker testing framework. If you are looking to become a DevOps engineer, there are some skills that you should focus on and develop. For starters, you should be fluent in web languages likePython,PHP, orJava. You should also have some experience working with infrastructure automation tools. Ideally, you should also have strong interpersonal communication skills so that you can easily collaborate with other people.

What are 5 DevOps practices?

  • DevOps is cultural and technical.
  • Phase Zero: You haven't started DevOps.
  • Phase 1: DevOps in pockets.
  • Phase 2: Automation.
  • Phase 3: Pipeline.
  • The web hosting maturity scale.
  • Phase 4: Blended architecture.
  • Phase 5: Continuous deployment.

Every node has got its configuration details in Puppet Master, written in the native Puppet language. These details are written in the language which Puppet can understand and are termed as Manifests. They are composed of Puppet code and their filenames use the .pp extension. Verify command also checks whether the given condition is true or false. Irrespective of the condition being true or false, the program execution doesn’t halts i.e. any failure during verification would not stop the execution and all the test steps would be executed. Assert command checks whether the given condition is true or false. Let’s say we assert whether the given element is present on the web page or not.

What is DevOps – A Beginners Guide To DevOps

The most essential thing that DevOps helps us achieve is getting the changes done into production as quickly as possible while minimizing the risk of software quality assurance and compliance. Doing the work so efficiently is the primary objective of DevOps. Code is developed by the Developers and Version Control System tools like Git etc. manage this source code. A person having experience with all the above tools can mention that he had worked on all the mentioned tools for developing software of good quality.

interview questions for devops engineer

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