The newly appointed Certkiller trainee technician wants to know which of the following connection types are used to connect two Cisco CallManagers in remote clusters. What will your reply be?

A.
H.225 Intercluster Trunk

B.
H.323 Intracluster Trunk

C.
H.323 Gatekeeper

D.
H.323 Intercluster Trunk

E.
H.225 Intracluster Trunk

F.
None of the Above

Explanation:
Cisco CallManager System Guide, Release 3.1(2)
Understanding Voice Gateways
Gateways, Dial Plans, and Route Groups
Use dial plans to access or call out to the PSTN, route groups, and group-specific gateways. Ensure remote Cisco CallManagers across the IP WAN are configured as intercluster (H.323) gateways.
http://www.cisco.com/en/US/partner/products/sw/voicesw/ps556/products_administration_guide_chapter09186 a