Which three statements about Data Center Bridging Exchange on Cisco Nexus switches are true? (Choose three.)

A.
DCBX is not yet standarized and the version that is implemented on the Cisco Nexus Series switches is Cisco proprietary.

B.
DCBX runs on top of the Link Layer Data Protocol.

C.
DCBX is an optional recommended feature when FCoE is implemented.

D.
Cisco Nexus 5000 Series switches support CIN and CEE DCBX.

E.
DCBX on the Cisco Nexus 5000 Series switches can interoperate with the Cisco Nexus 7000, 4000, and Catalyst Series Cisco switches.

F.
DCBX is used between the Cisco Nexus Series switches and devices with converged network adapters to exchange information about features they support.

Explanation: