A network device that associates a Media Access Control (MAC) address with a port is a:

A network device that associates a Media Access Control (MAC) address with a port is a:
A . DSL modem
B . Hub
C . Router
D . Switch

Answer: D

Explanation:

A switch begins learning the local MAC addresses as soon as it is connected to other devices or to a network. This learning capability makes switches easy to use on a network.

The switch learning process works like this: