A technician is searching through a storage locker and finds a PoE injector. What is the purpose of this device?

Question:
A technician is searching through a storage locker and finds a PoE injector. What is the purpose of this device?

• It is a device that can be inserted in the middle of a cable run to add power.
• It is a device that allows a network administrator to manage many remote networking devices from a central location.
• It connects the network of a user to the digital infrastructure of a phone company, providing always-on service.
• It connects a home or business network to a company that provides internet connectivity as well as television signals.

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