Which statement is true about a centralized power node?

A centralized power node plays a crucial role in telecommunications by supplying power to various network components, such as fiber-optic nodes and amplifiers. These nodes are essential for transmitting data over long distances and ensuring signal integrity throughout the network. The ability of a centralized power node to effectively power multiple components is central to its function, making it invaluable in maintaining network performance and reliability.

The other options present potential characteristics of power nodes but do not accurately capture the primary function of centralized power nodes. For instance, operating independently of external power sources would not typically apply, as centralized power nodes are often reliant on a broader power infrastructure. Similarly, while they may provide power for customer premises equipment, their primary role extends beyond just that aspect. Lastly, the location of centralized power nodes is generally in network hubs or central offices rather than at individual customer premises, which further highlights the unique role they serve within the overall network structure.