Which Spanning Tree Protocol feature is used to prevent designated ports from becoming root ports due to the reception of superior bridge protocol data units (BPDUs)?
Loop Guard
BPDU Guard
BPDU Filter
Root Guard
Root Guard is designed to maintain the position of the root bridge by preventing designated ports from becoming root ports if they receive superior BPDUs (indicating a better path to the root). When a port with Root Guard enabled receives a superior BPDU, it moves into a root-inconsistent state, blocking the port from forwarding traffic but still allowing BPDUs to be received. This ensures the network's root bridge remains stable and prevents unintended topology changes.
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