Which of the following best describes the functionality of the xFeedback command group on a Cisco VCS?

A.
It provides system status information.

B.
It provides historical information.

C.
It provides real-time call information.

D.
It enables you to modify the device configuration.

Explanation:
The xFeedback command group provides real-time call information on a Cisco TelePresence Video
Communication Server (VCS). In addition, the xFeedback command group also provides real-time registration
information.
The xFeedback command group does not provide historical information. The xHistory command group enables
you to view historical information regarding calls and registrations on a Cisco VCS.
The xFeedback command group does not provide system status information. The xStatus command group
enables you to view system status information on a Cisco VCS, including information regarding alarms,
authentication, H.323, Session Initiation Protocol (SIP), calls, registrations, and resource usage.The xFeedback command group does not enable you to modify the device configuration. The xCommand and
xConfiguration command groups enable you to modify items on a Cisco VCS. The xCommand command group
enables you to perform the following tasks:
Create or delete an administrator account
Create or delete a domain for which the VCS is authoritative
Create or delete a zone
Remove a registration
Ping a system
Restart the VCS
Reboot the VCS
The xConfiguration command group enables you to perform the following tasks:
Configure IPv4 and IPv6 addresses
Configure a Domain Name System (DNS) host name
Enable or disable H.323 mode
Enable or disable SIP mode
Enable or disable internetworking mode
Configure Quality of Service (QoS) mode
Create an IP route
Create Allow Lists and Deny Lists
Create transforms

Cisco: Cisco TelePresence Video Communication Server, Administrator Guide: Command Types (PDF)