In which situation are user PINs maintained by the local Cisco Unified Communications servers?

A.
Only when the system is using LDAP synchronization.

B.
Only when the system is using LDAP authentication.

C.
Only when the system is using Global Directory.

D.
PINs are always maintained by the local Cisco Unified Communications Manager servers

E.
PINs are never maintained by the local Cisco Unified Communications Manager servers.

Explanation:
Cisco Unified Communications Manager assigns the system Default Credential
Policy to end user passwords, end user PINS, and application user passwords
Link: http://docwiki.cisco.com/wiki/Cisco_Unified_MeetingPlace_Release_8.0_–_Configuring_Cisco_Unified_MeetingPlace_Directory_Service#Configuring_the_User_PIN_in_Cis
co_Unified_Communications_Manager