For the following ports, which port is on every bridge in a Spanning Tree Protocol IEEE 802.1w network except the root bridge?
A.
root port
B.
backup port
C.
designated port
D.
alternate port
Explanation:
Root Port Roles
The port that receives the best BPDU on a bridge is the root port. This is the port that is the closest
to the root bridge in terms of path cost. The STA elects a single root bridge in the whole bridged
network (per-VLAN). The root bridge sends BPDUs that are more useful than the ones any other
bridge sends. The root bridge is the only bridge in the network that does not have a root port. All
other bridges receive BPDUs on at least one port.