StarAgile
Oct 18, 2024
4,602
15 mins
Life becomes easy when you can build, test, and deploy projects at one time. Isn’t it? Yes, it is now possible with this great tool. Jenkins interview questions and answers must be prepared for any DevOps interview as Jenkins has prominence in the field of DevOps and thus you can quickly crack your interview by mastering a few answers about this tool. Let’s explore that tool and those secret interview questions. We have also provided answers to each question making your life simple. Master these answers to grab a job ASAP.
Jenkins is a continuous integration automation server tool that is based on Java and is an open-source tool used for automated testing.
The 2 of the plugins for Jenkins that are popular are Maven and Git.
Jenkins is used mostly for its features such as
A pipeline is a process from the early developmental stage until the release of the project. The 3 stages of Jenkins pipeline are as follows,
It is a method of performing multiple tests on single projects daily. This is required because more than one developer is working on projects such as developing applications or programs.
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Jenkins is a continuous integration server and an automated testing tool. Jenkins is used for multiple testing on the same projects daily. The Jenkins pipeline is used here which automates the Build, Test, and Deploy pipeline.
Jenkins is the best tool for doing automated testing. Automated testing is the process of using a certain framework or program to test the developed programs or applications automatically without any human intervention.
The advantages are,
The following are the steps to run a JUnit test in Jenkins,
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4) How do you write test cases in Jenkins?
The Jenkins machine that is the VM or POD or Container is running on the different hardware which might be slower than the local machine the tests with multiple threads or inadvertent race conditions may run differently and fail in Jenkins
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The Jenkins "Job DSL and Plugins" are made of 2 parts. The DSL which stands for Domain Specific Language is used for describing the jobs in Groovy-based language and the Jenkins plugins which manage the scripts, the updation of the Jenkins jobs that are created are maintained as the results.
The Ant and Maven are the build tools and Jenkins is the continuous integration tool that has build, test, and deploy features.
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Jenkins supports a whole lot of tools such as Clearcase, Git, AccuRev, Mercurial, CVS, RTC, Subversion, and can execute Windows batch commands, shell scripts Apache Ant, Apache Maven, and sbt based projects.
Under the Job configuration section in Jenkins, we can define various Build Triggers. Now find the Build Triggers section, check the build periodically checkbox and make the schedule by defining the date and the time of the build.
Blue ocean is a project that retraces the user experience of Jenkins, modeling and presenting the process of software delivery with the few clicks to surface the important information and at the same time keeping the extensibility of the core Jenkins.
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Pipelines add powerful sets of automation tools on to Jenkins, it supports use cases that span from simple continuous integration to fully developed continuous delivery pipelines
The advantages are as follows,
A Jenkinsfile is a text file that contains the definition of a Jenkins pipeline and is stored with source control. There are advantages such as,
This enables the DevOps engineer to implement different Jenkinsfile for different branches of the same projects.
It automatically discovers, manages, and executes the pipelines for branches that contain a Jenkinsfile in source control.
Jenkins is a versatile tool for controlling the Development side of the DevOps from the start, that is to build, test, and deploy. As seen above the Jenkins pipeline can manage and execute any number of branches of the same project and multiple continuous delivery platforms. Jenkins can support automated testing which provides faster delivery, automated code delivery without human intervention, and saving money and time. Jenkins plays a major role in any DevOps interview. Many interview questions about Jenkins are asked in the DevOps, because of its importance.
These are some of the interview questions on Jenkins. If you want to know more and explore more then register with StarAgile as we offer online interactive DevOps training .
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