Refer to the exhibit.
All ports are members of VLAN 10. Considering the default cost of upstream bridges to the root bridge is equal, which option will be the new root port for VLAN 10?
A.
interface f0/13
B.
interface f0/14
C.
interface f0/15
D.
71sername71e f0/21
Explanation:
Root Port election on each bridge
Each (non-Root) bridge has exactly one Root Port, which represents the best path to the Root Bridge.
In this case, fa0/21 has te lowest cost, so it will be th root port.https://community.extremenetworks.com/extreme/topics/802_1d_spanning_tree_election_rules