Which device is primarily associated with managing Ethernet frames?

The device primarily associated with managing Ethernet frames is the switch. A switch operates at the data link layer (Layer 2) of the OSI model, where it specifically handles Ethernet frames. Its primary function is to receive incoming frames, read their destination MAC addresses, and forward them only to the appropriate port where the destination device is connected. This process reduces unnecessary traffic on the network and increases overall efficiency by ensuring that data packets are sent only to their intended recipients.

Switches are capable of learning the MAC addresses of devices on the network through a process called MAC address learning. This allows the switch to create a MAC address table that helps it make informed decisions on where to send frames within a local area network (LAN). This capability is what distinguishes switches from other devices like hubs, which broadcast incoming frames to all ports without any filtering, leading to potential network congestion.

Furthermore, unlike routers, which operate at Layer 3 and manage IP packets between different networks, switches are focused on managing local Ethernet frames within a single network segment. Modems are primarily used to convert digital data from a computer to analog for transmission over traditional phone lines and vice versa, but they do not manage frames directly. Therefore, the switch is the clear choice for managing Ethernet frames