Description: A build node in Jenkins is a machine or environment where the build jobs defined in a project are executed. These nodes can be physical or virtual and are configured to perform specific tasks, such as compiling code, running tests, or deploying applications. Jenkins’ architecture allows for the distribution of workloads across multiple nodes, improving efficiency and reducing wait times for job execution. Each node can have different configurations and capabilities, enabling development teams to tailor their build environments to the specific needs of their projects. Additionally, nodes can be centrally managed from the Jenkins master server, facilitating the administration and monitoring of running tasks. This flexibility and scalability make build nodes a fundamental part of continuous integration and continuous delivery (CI/CD), allowing development teams to implement changes quickly and reliably.