What are the two main classes of Configuration Items (CIs)?

The correct answer identifies the two primary classes of Configuration Items (CIs) within the Configuration Management Database (CMDB) framework. The distinction is made between application components, classified under the category of "Application (SW)" specifically represented by cmdb_ci_appl, and infrastructure components which fall under "Infrastructure (HW)" represented by cmdb_ci_hardware.

This classification is essential because it allows organizations to manage and track the different types of assets within their IT environment effectively. Applications are critical for delivering business services, while infrastructure components provide the underlying support necessary for those applications to function. By categorizing CIs in this manner, organizations can better understand the relationships and dependencies between applications and the hardware they rely on, enabling more effective management and issue resolution.

Other options may describe various aspects or types of CIs, but they do not capture this fundamental categorization that distinguishes between software applications and hardware infrastructure, which is pivotal for effective IT service management and compliance with ITIL practices.