A technician connects the monitoring appliance to a switch port configured as a SPAN port. What does that port provide?
- A.A write path for pushing logic to attached controllers
- B.A copy of selected switch traffic for passive analysis
- C.A time source that disciplines clocks on field devices
- D.A dedicated route that encrypts traffic between two zones
Why B is correct
A SPAN or mirror port copies chosen frames to a monitoring device that listens without transmitting. It does not encrypt, program devices or distribute time.
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