which two types of Call Admission Control can be implem…

If your IP telephony administrator asks you to configure a local zone for your dial plan to control the volume of calls between two end points in a centralized multisite
environment, which two types of Call Admission Control can be implemented? (Choose two.)

A.
locations based

B.
automated alternate routing

C.
gatekeeper based

D.
SRST

E.
Cisco Unified Communications Manager based

Explanation:
Incorrect answer: C, D, E

Location-based call admission control (CAC) manages WAN link bandwidth in Cisco Unified Communications Manager. Automated alternate routing
(AAR) provides a mechanism to reroute calls through the PSTN or other network by using an alternate number.
Link: http://www.cisco.com/en/US/docs/voice_ip_comm/cucm/admin/8_6_1/ccmsys/a02cac.html#wp1067747