A ____ operates at layer 3 of the OSI reference model. It interprets the Network layer protocol and makes forwarding decisions based on the layer 3 address.
A) switch
B) router
C) bridge
D) hub

Question

Quizplus · Accepted Answer

Routers operate at layer 3 of the OSI reference model and are responsible for forwarding data packets between networks based on the layer 3 address (IP address). Switches operate at layer 2 and make forwarding decisions based on the layer 2 address (MAC address), bridges also operate at layer 2 and connect two or more network segments together, and hubs operate at layer 1 and simply amplify and broadcast network signals to all connected devices.

A ____ Operates at Layer 3 of the OSI Reference