Jenkins interview questions and Answers

Questions on Jenkins

Jenkins is a famous open source automation server. Jenkins main purpose is to build and test the application projects continuously also it is comfortable for developers to integrate changes that made,

Recently many interviews have questions on Jenkins. Here are few frequently asked Jenkins interview questions with answers.

 

What is Jenkins software?

Jenkins is self-contained, open source automation server used to automate all sorts of tasks related to building, testing and delivering or deploying software.

Jenkins is one of the leading open source automation servers available. Jenkins has an extensible, plugin-based architecture, enabling developers to create 1,400+ plugins to adapt it to a multitude of build, test and deployment technology integrations.

What is the minimum JRE required to run Jenkins 2.1?

JDK 8 or JRE 8

What is a Jenkins Pipeline?

Jenkins Pipeline (or simply “Pipeline”) is a suite of plugins which supports implementing and integrating continuous delivery pipelines into Jenkins.

What is a continuous delivery pipeline?

A continuous delivery pipeline is an automated expression of your process for getting software from version control right through to your users and customers.

What is an agent in Jenkins?

The agent directive tells Jenkins where and how to execute the Pipeline, or subset thereof. As you might expect, the agent is required for all Pipelines.

What is post section in Jenkins?

The post section of a Pipeline is guaranteed to run at the end of a Pipeline’s execution. In order to that, we can add some notification or other steps to perform finalization, notification, or other end-of-Pipeline tasks.

What is the use of Jenkins in DevOps?

Jenkins automate the CI / CD process in DevOps layer.

Which is the best continuous integration tool?

1. Jenkins, TeamCity etc…

What is CI and CD process?

Continuous integration
Developers practicing continuous integration merge their changes back to the main branch as often as possible

Continuous delivery
Continuous delivery is an extension of continuous integration to make sure that you can release new changes to your customers quickly in a sustainable way.

What is a Jenkins file?

Jenkins file is a text file containing the definition of a Jenkins Pipeline and checks into source control.

What is an SCM in Jenkins?

Source code management in Jenkins is the first step in Jenkins to download the latest source code from git or svn etc, to start the build process.

 

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