Which Spanning Tree Protocol port state is used to block traffic to prevent loops?

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Multiple Choice

Which Spanning Tree Protocol port state is used to block traffic to prevent loops?

Spanning Tree Protocol uses port states to control whether a port forwards frames in order to prevent switching loops. The blocking state is the one that stops data traffic from being forwarded, effectively removing that path from active forwarding. While in blocking, the port does not forward frames but still listens for BPDUs to monitor the network topology. This is exactly how loops are prevented: a redundant link is kept from carrying traffic. Other states like Forwarding actively pass frames, Learning builds MAC address tables while forwarding, and Listening prepares for topology changes but still doesn’t forward data, so they’re not the state used to block traffic.

Spanning Tree Protocol uses port states to control whether a port forwards frames in order to prevent switching loops. The blocking state is the one that stops data traffic from being forwarded, effectively removing that path from active forwarding. While in blocking, the port does not forward frames but still listens for BPDUs to monitor the network topology. This is exactly how loops are prevented: a redundant link is kept from carrying traffic. Other states like Forwarding actively pass frames, Learning builds MAC address tables while forwarding, and Listening prepares for topology changes but still doesn’t forward data, so they’re not the state used to block traffic.

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