Which three services must be stopped to change the IM & Presence service default domain setting of DOMAIN.NOT.SET? (Choose three.) 

Answer options:

A. Cisco XCP Router
B. Cisco Intercluster Sync Agent
C. Cisco XCP Authentication Service
D. Cisco SIP Proxy
E. Cisco Presence Engine
F. Cisco AXL Web service

ADE

Change the Domain Value - Follow this procedure if you want to change the domain value (from one valid domain value to another valid IP proxy domain value). This procedure is applicable if you have a DNS or non-DNS deployment. Procedure - Stop the Cisco SIP Proxy, Presence Engine and XCP Router services on IM and Presence on all nodes in your cluster. Step 1 - 

On the publisher node, perform the following steps to configure the new domain value: Step 2 - 

Select IM and Presence Administration > System > Cluster Topology. a. In the right pane, select Settings. b. Configure the Domain Name value with the new domain. c. Select IM and Presence Administration > System > Service Parameters, and select the Cisco SIP Proxy service. a. Configure the Federation Routing IM and Presence FQDN with the new domain. b. You will be prompted to confirm these configuration changes. Select OK for both prompts, and then select Save. c. On all nodes in the cluster, use this CLI command to set the new domain: Step 3 - 

This CLI command invokes a reboot of the servers. On all nodes in the cluster, manually start the Cisco Presence Engine and Cisco XCP Router services after the reboot is complete (if required). Step 4 - 

Manually regenerate all certificates on each node in the cluster. Step 5 - 

Reference: http://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/im_presence/ip_address_hostname/9_0_1/IM_P_IPChange/sip_domain.html