During the Horizontal Exploration Phase, what type of method is utilized in the legacy approach?

In the Horizontal Exploration Phase, the legacy approach primarily relies on the use of Probes and Sensors. This method is integral to the Discovery process as it focuses on gathering information about the devices residing in the network. Probes are responsible for scanning the network and collecting data, while Sensors analyze the collected data to identify the characteristics and behaviors of devices.

This method allows for an extensive inventory of IT assets, as the Probes and Sensors can communicate with multiple types of devices and systematically gather relevant details. Their complementary roles facilitate deeper insights during the discovery, ensuring that all significant elements within the network are recognized and assessed. This helps in building a comprehensive Configuration Management Database (CMDB), which is essential for effective IT service management.

Other methods, like API, Webhooks, and Scripts, may serve specific purposes in integrations or data manipulation but are not the cornerstone of the legacy approach during the Horizontal Exploration Phase. Probes and Sensors are tailored specifically for initial discovery tasks, which is why they are the correct choice in this context.