You are preparing to configure your VoIP Domain Gatekeeper object. Which two other objects
should you have created first?

A.
An object to represent the IP phone network, AND an object to represent the host on which the
proxy is installed

B.
An object to represent the PSTN phone network, AND an object to represent the IP phone
network

C.
An object to represent the IP phone network, AND an object to represent the host on which the
gatekeeper is installed

D.
An object to represent the Q.931 service origination host, AND an object to represent the H.245
termination host

E.
An object to represent the call manager, AND an object to represent the host on which the
transmission router is installed

Explanation: