What type of network uses one common infrastructure to carry voice, data, and video signals?

A converged network is designed to utilize a single infrastructure to transport voice, data, and video signals, which streamlines operations and reduces costs. This integration boosts efficiency as it allows different types of information to travel over the same physical medium, minimizing the need for multiple separate networks that would require maintaining distinct equipment and configurations.

In contrast, an integrated network refers more generally to components working together, but it does not specifically emphasize the combination of voice, data, and video into one unified infrastructure. Dedicated networks are typically designed for a single application or purpose, which may isolate data streams rather than converging them. Segmented networks involve dividing a network into segments to improve performance or security; however, they do not imply the integration of different data types onto one common infrastructure as a converged network does.