Exam 300-820 topic 1 question 165 discussion

Understanding the Control Modes: Unified CM and Endpoint (Default): This mode allows both the UCM and the endpoint to act as a multi-master source for provisioning endpoint data. Unified CM: In this mode, the UCM is the sole source for provisioning endpoint data. Endpoint: In this mode, the endpoint is the sole source for provisioning endpoint data. Webex Edge only - not present in CUCM Webex Device Connector, lets you link Webex Edge to Control hub and provision the device settings. https://www.youtube.com/watch?v=KzklR87dctM

Correct Answer: C. Cisco UCM and endpoint https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/admin/12_5_1SU1/cucm_b_feature-configuration-guide-for-cisco1251SU1/cucm_b_feature-configuration-guide-for-cisco1251SU1_chapter_01001110.html#concept_C0E4C23CABAAE36BD305ED334A1A0F16

Def NOT A, as WebEx Edge Only is not even an option in UCM. Not B, Endpoint only, as that would only give CHub Read Access. Not D, as that would give CHub NO access. C allows CM to pull the config from the endpoint after CHub pushed a config to the endpoint. View this whitepaper - webex-edge-devices-white-paper.pdf

Answer A: When configuring Cisco Webex Edge for video conferencing devices to be managed by Cisco Webex Control Hub, the configuration control mode on Cisco UCM (Unified Communications Manager) must be set to Webex Edge only. This setting ensures that the Webex Control Hub can manage the on-premises video endpoints via Webex Edge, while Cisco UCM handles the call routing and call control. In this setup, Webex Control Hub takes responsibility for the configuration management of video devices, including updates and settings, via the Webex Edge platform, which provides secure connectivity to the cloud.