Which command meets this requirement?

Refer to the exhibit.

SwitchC connects HR and Sales to the Core switch However, business needs require that no traffic from the Finance VLAN traverse this switch.

Which command meets this requirement?
A . SwitchC(config)#vtp pruning
B . SwitchC(config)#vtp pruning vlan 110
C . SwitchC(config)#interface port-channel 1
SwitchC(config-if)#switchport trunk allowed vlan add 21 0, 310
D . SwitchC(config)#interface port-channel 1
SwitchC(config-if)#switchport trunk allowed vlan remove 110

View Answer

Answer: D

Explanation:

From the "show vlan brief" we learn that Finance belongs to VI-AN 110 and all VLANs (from 1 to 1005) are allowed to traverse the trunk (port-channel 1). Therefore we have to remove VI-AN 110 from the allowed VI-AN list with the "switchport trunk allowed vlan remove " command The pruning feature cannot do this job as Finance VI-AN is active.