Which RAS message is used between two gatekeepers to resolve an alias address? 

Answer options:

A. GRQ
B. ARQ
C. IRQ
D. LRQ
E. RRQ

D

LRQThese messages are exchanged between gatekeepers and are used for inter-zone (remote zone) calls. For example, gatekeeper A receives an ARQ from a local zone gateway requesting call admission for a remote zone device. Gatekeeper A then sends an LRQ message to gatekeeper
B. Gatekeeper B replies to the LRQ message with either a Location Confirm (LCF) or Location Reject (LRJ) message, which depends on whether it is configured to admit or reject the inter- zone call request and whether the requested resource is registered.