Please choose the location of RAI configuration from the following options.

A.
On a gatekeeper

B.
On a gateway

C.
On both a gatekeeper and a gateway

D.
On a Cisco Unified Communications Manager server

Explanation:
To allow gatekeepers to make intelligent call routing decisions, the gateway reports the status of
its resource availability to its gatekeeper. Resources that are monitored are DS0 channels and
DSP channels.
The gateway reports its resource status to the gatekeeper with the use of RAS Resource
Availability Indication (RAI). When a monitored resource falls below a configurable threshold, the
gateway sends an RAI to the gatekeeper that indicates that the gateway is almost out of
resources. When the available resources then cross above another configurable threshold, the
gateway sends an RAI that indicates that the resource depletion condition no longer exists.
This feature was included in Cisco IOS Software Release 12.0(5)T on the Cisco AS5300 gateway,
and Cisco IOS Software Release 12.1(1)T for other gateways in H.323 version 2
http://www.cisco.com/en/US/tech/tk1077/technologies_tech_note09186a0080093f67.shtml