Which three steps are necessary in order to configure DHCP for phone support using the GUI in Cisco Unified Communications Manager 6.0? (Choose three.)

A.
add the DHCP server IP address to the device pool

B.
activate DHCP Monitor Service

C.
add and configure the DHCP server

D.
start the application on an external server

E.
configure the DHCP subnet

F.
download the DHCP server application from the plug-in page 84
Cisco 642-447 Exam

Explanation: