Final answer:
ServiceNow Discovery is the ServiceNow product used for populating the CMDB, providing automation for asset discovery and maintaining an accurate view of the IT infrastructure for enhanced service management and decision-making.
Step-by-step explanation:
The ServiceNow product that can be used to populate the CMDB (Configuration Management Database) is ServiceNow Discovery. This product is an automated IT asset discovery tool that helps organizations build and maintain a detailed, accurate CMDB. ServiceNow Discovery works by scanning the enterprise infrastructure to identify all computing devices, as well as their configurations and relationships. This process helps to provide a comprehensive view of the IT environment, which is critical for efficient service management, asset management, and compliance. With the assistance of ServiceNow Discovery, organizations can keep their CMDB up-to-date with minimal manual effort, leading to improved operational efficiency and decision-making capabilities.