Final answer:
An active hub functions at the Physical layer of the OSI model, providing physical connections between network devices.
Step-by-step explanation:
The new device, an active hub, functions at the Physical layer of the OSI (Open Systems Interconnection) model.
The OSI model is a conceptual model that represents how network protocols interact and communicate with each other. It is divided into seven layers, with each layer serving a specific function.
At the Physical layer, the active hub is responsible for providing the physical connection between network devices, such as computers and printers. It transmits data in the form of electrical or optical signals through network cables.