A network engineer is extending a LAN segment between two geographically separated data
centers. Which enhancement to a spanning-tree design prevents unnecessary traffic from crossing
the extended LAN segment?
A.
Modify the spanning-tree priorities to dictate the traffic flow.
B.
Create a Layer 3 transit VLAN to segment the traffic between the sites.
C.
Use VTP pruning on the trunk interfaces.
D.
Configure manual trunk pruning between the two locations.