You manage a network that uses a single switch. All ports within your building connect through that switch.

In the lobby, there are also three RJ$45$ ports connected to the switch. You want to allow visitors to plug in to these ports to gain internet access, but they should not have access to any other devices on your private network. Employees connected throughout the rest of your building should have both private and internet access.

Which feature should you implement?

answer

Port authentication

Spanning Tree

PoE

VLANs