Which statement describes the term blocking in the operation of STP?
- It is a port state that can modify the MAC address table with any network traffic that it receives, but only forwards BPDUs and not any other network traffic.
- It indicates that the port is in an administratively off position.
- It is a port state that is enabled but does not forward any traffic to ensure that a loop does not occur.
- It indicates that the port has transitioned from a blocking state and can send or receive BPDUs, but cannot forward any other network traffic.
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