Regarding the Network port the easiest way requires two people.
One person connects a device into the data location you want to remove.
The second person monitors the network.
Person out on the floor plugs in the data cable for 3 seconds, unplugs it for 3 seconds and repeats.
Person in the data closet look for the blinking connectivity light.
For a single person. Make a note of which ports on the switch are active.
Plug in a device out on the floor location.
Compare your list against what ports are now showing connectivity.
For active network ports A different tester can help such as a Fluke IntelliTone Pro LAN Tone/Tester. "Digital network cable toner and probe traces and locates cables on active network."
https://www.flukenetworks.com/datacom-cabling/copper-testing/IntelliTone-Pro-Toner-and-Probe
