Which of these determines the Cisco Unified Communications Manager server to which an IP phone registers?

A.
The Cisco Unified Communications Manager group is configured in the publisher to designate the primary, secondary, and tertiary servers in the group.

B.
Each IP phone is configured with a Cisco Unified Communications Manager group that determines which server the IP phone will use as its primary, secondary, and tertiary server.

C.
Each IP phone is configured with its primary, secondary, and tertiary server.

D.
The Cisco Unified Communications Manager group is configured in the publisher to designate 5
Cisco 642-447 Exam
the IP phone groups that will register with the primary, secondary, and tertiary servers in the group.

Explanation:
Incorrect Answer : ACD
Link :
http://www.cisco.com/en/US/docs/voice_ip_comm/cucm/admin/8_5_1/ccmcfg/b02cmgrp.html#wpx ref55167