Refer the exhibit. Which configuration elects SW4 as the root bridge for VLAN 1 and puts G0/2 on SW2 into a blocking state?

A. 
SW4(config)#spanning-tree vlan 1 priority 32768
!
SW2(config)#interface G0/2
SW2(config-if)#spanning-tree vlan 1 port-priority 0

B. 
SW4(config)#spanning-tree vlan 1 priority 32768
!
SW2(config)#int G0/2
SW2(config-if)#spanning-tree cost 128

C. 
SW4(config)#spanning-tree vlan 1 priority 0
!
SW2(config)#int G0/2
SW2(config-if)#spanning-tree cost 128

D. 
SW4(config)#spanning-tree vlan 1 priority 0
!
SW2(config)#interface G0/2
SW2(config-if)#spanning-tree vlan 1 port-priority 64

Refer the exhibit. Which configuration elects SW4 as the root bridge for VLAN 1 and puts G0/2 on SW2 into a blocking state?

A. 
SW4(config)#spanning-tree vlan 1 priority 32768
!
SW2(config)#interface G0/2
SW2(config-if)#spanning-tree vlan 1 port-priority 0

B. 
SW4(config)#spanning-tree vlan 1 priority 32768
!
SW2(config)#int G0/2
SW2(config-if)#spanning-tree cost 128

C. 
SW4(config)#spanning-tree vlan 1 priority 0
!
SW2(config)#int G0/2
SW2(config-if)#spanning-tree cost 128

D. 
SW4(config)#spanning-tree vlan 1 priority 0
!
SW2(config)#interface G0/2
SW2(config-if)#spanning-tree vlan 1 port-priority 64

Correct Answer: C