Which of the following tools is NOT a configuration management tool?

Jenkins is not classified as a configuration management tool; rather, it is primarily a continuous integration and continuous delivery (CI/CD) tool. It is designed to automate the building, testing, and deployment of software applications. In contrast, Puppet, Chef, and Ansible are all specifically focused on configuration management, which involves the automation of system configurations, application deployments, and infrastructure management.

Configuration management tools like Puppet, Chef, and Ansible help ensure that systems are in the desired state by managing configurations across multiple servers and environments. They are essential for maintaining consistency and compliance in complex deployments. Jenkins, while it may integrate with configuration management tools, does not serve that purpose itself, making it distinct in its capabilities and functionality.