What type of connector is commonly terminated on both ends of a network cable?

The RJ45 connector is specifically designed for use with Ethernet cables, which are the most common types of network cables used in local area networks (LANs). This connector is configured to fit into standard Ethernet ports found on computers, switches, routers, and other networking devices. Being terminated on both ends of a network cable allows for creating a continuous connection between two devices, enabling data transmission over the network.

In contrast, the other connector types serve different functions. USB is primarily used for connecting peripherals and devices for data transfer and charging, while HDMI is focused on transmitting high-definition audio and video signals, commonly associated with televisions and media devices. The BNC connector is often used for coaxial cables, particularly in video applications, such as connecting security cameras or broadcast equipment. Each of these connectors has its unique application, but the RJ45 is specifically integral to networking, which makes it the correct answer in this context.