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

Answer options:

A. sequential
B. peer
C. longest idle
D. parallel
E. overlay
F. linear

BC

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. References: http://ccievoice.ksiazek.be/?p=690