1. Broadcast

2. Collision

3. Trunking allows you to send information about many or all VLANs through the same link. Access ports allow information about only one VLAN transmitted.

4. Power over Ethernet (PoE)

5. The VLAN port membership is set wrong.

6. Flood the frame out all ports except the port on which it was received.

7. Address learning, filtering, and loop avoidance

8. It will add the source MAC address to the forward/filter table.

9. Spanning Tree Protocol (STP)

10. Create a VLAN for contractors and another VLAN for guests.