What is the purpose of Power over Ethernet (PoE)?

Power over Ethernet (PoE) serves the essential function of delivering electrical power alongside data over standard Ethernet cables. This technology allows network cables to send both data and power to devices such as cameras, VoIP phones, and wireless access points without the need for additional power sources or separate power cords.

By consolidating power and data transmission into one cable, PoE simplifies installation, reduces clutter, and enhances flexibility in positioning devices, especially in locations where it may be impractical to install power outlets. This capability is particularly beneficial in scenarios where devices are deployed in areas without easy access to electrical outlets, thereby facilitating easier deployment of networked devices.

The other options do not accurately describe PoE's primary function. For example, while network bandwidth is crucial for data transfer, PoE does not inherently increase bandwidth. Similarly, PoE does not enhance wireless signal strength or directly reduce latency in data transfer; these aspects are managed through different networking technologies and configurations.