An update of the configuration using the Cisco CTL client not needed when _______.(SourcE.
Configuring Cisco IP Telephony Authentication and Encryption)
A.
a Cisco Unified CallManager has been removed
B.
an LSC of the IP phone is upgraded
C.
a security token is added to the system
D.
an IP address of the Cisco TFTP server has been changed
Explanation:
The CTL file contains entries for the following servers or security tokens:
• System Administrator Security Token (SAST)
• Cisco CallManager and Cisco TFTP services that are running on the same server
• Certificate Authority Proxy Function (CAPF)
• TFTP server(s)• ASA firewall
Link:
http://www.cisco.com/en/US/docs/voice_ip_comm/cucm/security/8_6_1/secugd/secuauth.html#w
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