Jenkins interview questions
These questions are the simplest and most effective way of learning those are prepared by the experts. SkillPractical prepares you to discover something new. Often, when you ask questions, whether they’re related to something within the company or not, you discover something new.
With SkillPractical questions you can put things together, you remember things, you resolve issues, you understand Jenkins better.
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Sample SkillPractical Questions are:
What is Jenkins?
Explain what is continuous integration?
What is the requirement for using Jenkins?
What are the advantages of Jenkins?
Explain 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?
Jenkins is an open source tool with plugin built for continuous integration purpose. The principle functionality of Jenkins is to keep a track of version control system and to initiate and monitor a build system if changes occur. It monitors the whole process and provides reports and notifications to alert.
In software development, when multiple developers or teams are working on different segments of same web application, we need to perform integration test by integrating all modules. In order to do that an automated process for each piece of code is performed on daily bases so that all your code get tested.
What are the steps included in a Jenkins pipeline?
A complete Jenkins pipeline includes building a project from the source code, putting it through a variety of units, integrating, testing for user acceptance and performance, and then finally deploying the packaged application on an application server.
So, the steps in a Jenkins pipeline can be listed as below:
Build
Test
Deploy
Jenkins can be thought of as an open-source automation tool that is used for continuous integration. With Jenkins, we will be able to continuously test our software projects so that developers will be able to integrate the changes to the project. We can also integrate this automation tool with a large number of testing and deployment technologies.
What is the process for securing Jenkins?
First, we need to ensure global security. Then, we have to make sure that Jenkins is integrated with the user directory through an appropriate plugin. The project matrix is enabled for fine tuning the access using the custom version-controlled script for automating the process of rights and privileges in Jenkins. The access to Jenkins data or folder is limited. We will run security audits on it.
To use Jenkins you require: A source code repository which is accessible, for instance, a Git repository. A working build script, e.g., a Maven script, checked into the repository. It is written in Java. It is known as an automated Continuous Delivery tool that helps to build and test the software system with easy integration of changes to the system. Jenkins follows Groovy Scripting.
Jenkins is an extremely important tool that you must upskill yourself in if you wish to become a DevOps Engineer. Many times recruiters have asked questions related to the Jenkins tool in DevOps interviews. We have collected the questions in this set of Jenkins interview questions after conducting extensive research.
To create a project that is handled via jobs in Jenkins. Select New item from the menu, once this done enter a name for the job and select free-style job. Then click OK to create new job in Jenkins. The next page enables you to configure your job.
To clone a Git repository via Jenkins, you have to enter the e-mail and user name for your Jenkins system. For that, you have to switch into your job directory and execute the “git config” command.
The software prerequisites for installing Jenkins are that first we need to install Java Development Kit. We also need to install the Jakarta Enterprise Edition. Jenkins also comes with an embedded Jetty Runtime that can be used if WebSphere or Tomcat is not available.