Which describes Cisco DNA southbound APIs?

Cisco DNA Center's southbound APIs are primarily used for communicating with and controlling network devices (switches, routers, wireless access points). This directly simplifies device management by providing programmatic interfaces for configuration, monitoring, and troubleshooting. While Cisco DNA Center does enable intent-based orchestration and automation, this is an overarching function of the entire platform, not solely the southbound APIs. Southbound APIs are a component that facilitates this. Cisco DNA Center primarily uses REST APIs for its northbound and southbound interactions, but "uses REST APIs" is a description of the technology used, not the purpose or benefit of the southbound APIs themselves. SOAP is an older protocol and not the primary method for Cisco DNA Center's APIs.