Which two Cisco Unified Communications Manager Express hunt group mechanisms keep track of the number of hops in call delivery decisions? (Choose two.)

Peer configures hunting in a circular manner among the hunt group member DNs and starts with the DN to the right of the last DN to ring.
Longest-idle specify hunting on the DN which is idle for a longest period of time and the call will go to that DN of the hunt Group.
Reference: http://ccievoice.ksiazek.be/?p=690