Working the layers

What kind of networking device operates at OSI layer 3 and is often used to connect diverse network types?

A) Switch

B) Router

C) Hub

D) Gateway

E) OSI Layer Cake

The answer: B) Router

A router connects different IP subnets to each other and makes routing decisions based on the Layer 3 IP addresses.

Want to know more? Watch “Network Technologies.”

The fundamental operation of the network uses many different technologies to ensure that traffic will flow properly between devices. In this video module, you’ll learn about status indicators, duplex settings, the difference between workgroups and domains, and much more.