Which of these is used for call and directory lists that are enabled for native Presence in Cisco Unified Communications Manager?

Which of these is used for call and directory lists that are enabled for native Presence in Cisco Unified Communications Manager?

A.
Subscribe CSS and Presence groups

B.
Presence groups and Phone Line CSS

C.
Presence groups and Phone Device CSS

D.
only Presence groups

E.
Subscribe CSS only

Explanation:
Incorrect answer : BCDE
Explanation : Devices, directory numbers, and users can be assigned to a presence group, and by default all users are assigned to the Standard Presence Group Link : http://www.cisco.com/en/US/docs/voice_ip_comm/cucm/srnd/8x/presence.html#wp1084139

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Cisco 642-447 Exam