Prisma SD-WAN ION devices are designed for ease of deployment, often leveraging Zero Touch Provisioning (ZTP). Option C describes the ZTP process: the device, upon booting and gaining internet connectivity (often via a temporary link or one of its WAN interfaces), contacts the cloud controller and obtains its initial configuration and management connection details. This might involve manual steps in the cloud console to associate the device serial number with a site or configuration template, or using a preloaded USB key for some initial network parameters. Options A and B describe methods for manual local configuration, which might be used for troubleshooting but not the primary ZTP onboarding. Option D is incorrect; discovery is not typically via local broadcast. Option E is incorrect; ION devices are cloud-managed, not directly by Panorama for initial setup.