It has been determined that unknown unicast, multicast, and broadcast traffic is not
correctly being switched through either Nexus 7010 switch. Which statement best
describes the cause of this issue?

A.
The MST STP is not enabled on either switch

B.
No VLANs are allowed across the vPC peer link.

C.
The default VLAN is inactive

D.
VTP is not configured to handle this type of traffic.

Explanation:
The MST STP is not enabled on either switch
From both switches the “show spanning-tree mst” command show that the switch is not in
MST mode.