1.what is jenkins?

• jenkins is a self-contained java based program .
• Ready to run out of the box with packages for windows, linux, macos and other unix -like operating systems.
• jenkins is a free and open source automation server.
• it helps automate the parts of software development related to building ,testing , deploying.
• it is a server based system that runs in servlet containers such as apache tomcat.
• the reason jenkins software became so popular because of its monitoring.
• jenkins will continuously repeat the tasks and shows the error quickly.
• To use jenkins we need to create a pipeline.
• jenkins continuous integartion pipeline is a powerful instrument that consists of some tools.
• set of tools designed to host, monitor, compile.
• jenkin pugins come with some limited features.
• directly we can install and use them.
• integration tools like maven.
• we can customize jenkins.
• They are installed plugins and select plugins to install.

2.list out top 10 popular jenkin plugins?

• pipeline
• monitoring
• dashboard
• git
• build pipeline
• folders
• performance
• build history of jenkins
• multi job
• mailer