Which of the following UCM device settings fields identifies the specific hardware device that is being
configured? (Select the best answer.)

A.
Device Pool

B.
Phone Security Profile

C.
MAC Address

D.
Phone Button Template

Explanation:
The MAC Address field is the Cisco Unified Communications Manager (UCM) field that identifies the specific
hardware device that is being configured. The MAC Address field contains the Media Access Control (MAC)
address of the device that you are provisioning. The MAC address is a hardware address that is assigned by
the device manufacturer. When you are manually provisioning an IP phone in UCM Administration, you must fill
in the MAC Address field, the Device Pool field, the Phone Button Template field, and the Phone Security
Profile field.
The Device Pool field does not identify the specific hardware device that is being configured. Although required
when manually provisioning an IP phone in UCM Administration, the Device Pool field specifies a given set of
characteristics that are to be applied to IP phones within the pool, such as region, date and time groups, softkey
templates, and more.
The Phone Button Template field does not identify the specific hardware device that is being configured. Phone
button templates are used to add or arrange IP phone buttons for a given device or group of devices. You can
create or edit phone button templates by clicking Device > Device Settings > Phone Button Template in UCM.
The Phone Security Profile field does not identify the specific hardware device that is being configured. The
Phone Security Profile field is used to create or modify the security configuration of devices to which the profile
is applied. For example, you can assign a profile that supports UCM authentication or encryption to a device
that supports those features.Reference:
https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cuipph/8800-series/english/adminguide/
P881_BK_C136782F_00_cisco-ip-phone-8800_series.html#P881_TK_S05A7ED5_00