What device picks off the direct current (DC) voltage injected into the CAT-5e cable by the injector and makes it available to equipment through the regular DC power jack?

• A. A DC picker or tap.
• B. A PoE splitter.
• C. A power conditioner.
• D. A data repeater.

Answer: (A)

The concept being tested is how PoE power is retrieved from the Ethernet cable. When power is injected onto CAT-5e, a device can tap into that DC to feed a regular device that uses a standard DC power jack. This inline device is a DC tap (also called a PoE tap), which picks off the DC on the cable and routes it to the equipment’s power input. A PoE tap is specifically about extracting the DC without disturbing the data signal flowing on the same cable.

A PoE splitter can also provide DC to a device, but the description here directly matches tapping off the DC on the line to feed the device’s DC input. A power conditioner isn’t related to PoE extraction, and a data repeater focuses on regenerating data signals rather than delivering power.