Which item represents the process that allows FCoE multihop using T11 standard FC-BB-5?

Which item represents the process that allows FCoE multihop using T11 standard FC-BB-5?
A . distributed FCF
B . FIP proxy
C . N Port proxy
D . FIP snooping

Answer: D

Explanation: FIP snooping is used in multi-hop FCoE environments. FIP snooping is a frame inspection method that can be used by FIP snooping capable DCB devices to monitor FIP frames and apply policies based on the information in those frames. This allows for:

Enhanced FCoE security (Prevents FCoE MAC spoofing.)

Creates FC point-to-point links within the Ethernet LAN

Allows auto-configuration of ACLs based on name server information read in the FIP frames

Reference: http://www.definethecloud.net/fcoe-initialization-protocol-fip-deep-dive/