What does "PoE" stand for, and what is its primary function?

The term "PoE" stands for "Power over Ethernet," and its primary function is to enable electrical power to be delivered alongside data over Ethernet cables. This technology allows devices, such as IP cameras, wireless access points, and VoIP phones, to receive both power and data through a single cable. This simplifies installations by eliminating the need for separate power supplies and outlets, making it particularly useful in locations where power sources are not readily available.

In contrast to the other options, PoE is not limited to data transmission only, nor does it relate to enhancing data security or increasing signal strength, which defines the functionality of other technologies that do not involve power delivery. Power over Electric is not a recognized term in networking contexts, further highlighting the importance of the correct terminology associated with PoE.