Ann, a user, reports that her desktop phone is not working on one cable. However, that cable provides connectivity to her laptop. A technician determines PoE is not provided to the end device. Which of the following is MOST likely the cause?
A. Transceiver mismatch
B. Crosstalk
C. Jitter
D. Open/short on the cable
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if cable provides connectivity to her laptop then It can’t be Open/short on cable.
Unless the short is one one of the pairs that provides power and not data.
I feel as thought it is D as well
https://community.spiceworks.com/topic/1118452-poe-phone-receiving-power-but-not-data-over-ethernet
The answer does not make sense at all, Open/short on the cable seems like the right answer