Question: How can the PTP port states be determined by NW-TT?
Option 1: Only via BMCA procedure.
Option 2: Only via local configuration.
Option 3: Via either BMCA procedure or local configuration, but not both.
Option 4: Via either BMCA procedure (Method a) or local configuration (Method b).
Explanation: The PTP port states can be determined by NW-TT using two methods: Method a), which is the BMCA procedure, and Method b), which is local configuration. This allows for flexibility in configuring the PTP port states depending on the specific requirements of the network.