When using Spanning Tree Protocol, which port on non-root bridges can forward traffic toward the root bridge?
A) Only one root port, which is the bridge's port that is closest to the root bridge, can forward.
B) Only one root port, which is the bridge's port that is furthest from the root bridge, can forward.
C) All ports can forward frames to the root bridge, provided they are not in a down state.
D) All ports will forward frames to the root bridge, unless a BPDU is received back on that same port.

Question

Quizplus · Accepted Answer

Only one root port, which is the bridge's port that is closest to the root bridge, can forward traffic toward the root bridge in Spanning Tree Protocol. This ensures that there is only one path to the root bridge from each non-root bridge, preventing loops in the network. All other ports on the non-root bridge will be designated or blocked.

When Using Spanning Tree Protocol, Which Port on Non-Root Bridges