An engineer configured Layer 2 extension from the ACI fabric and changed the Layer 2 unknown unicast policy from Flood to Hardware Proxy. How does this change affect the flooding of the L2 unknown unicast traffic? 

Answer options:

A. It is forwarded to one of the spines to perform as a spine proxy.
B. It is flooded within the whole fabric.
C. It is dropped by the leaf when the destination endpoint is not present in the endpoint table.
D. It is forwarded to one of the APICs to perform as a proxy.

A

Reference: https://www.cisco.com/c/en/us/td/docs/switches/datacenter/aci/apic/sw/2-x/L2_config/b_Cisco_APIC_Layer_2_Configuration_Guide/ b_Cisco_APIC_Layer_2_Configuration_Guide_chapter_010.html