G1/2 is the root port for SW4, please choose the command so G1/1 can be the new root port?
A. spanning-tree cost 1 on interfca g1/1
B. spanning-tree cost 5 on interface gi0/1
C. spanning-tree port priority 0 on g1/1
D. spanning-tree port priority 0 on g1/2
Answer:C
G1/2 is the root port for SW4, please choose the command so G1/1 can be the new root port?
A. spanning-tree cost 1 on interfca g1/1 B. spanning-tree cost 5 on interface gi0/1 C. spanning-tree port priority 0 on g1/1 D. spanning-tree port priority 0 on g1/2