LAN Switching first-step

Chapter 9

1:	Why and how should you separate public (external) and private (internal) VLANs?
A1:	Answer: You should separate public (external) and private (internal) VLANs because separating your internal and external networks provides a measure of security in the network by not exposing internal resources to the outside world. You should do so by using two switches and a firewall in the network: one switch on the public, or outer, side of the firewall and one switch on the private, or inner, side of the firewall.
2:	What is port security?
A2:	Answer: Port security is used to deny access to a switch or a network connected to that switch's port. When port security is enabled on a switch, any MAC address not specified for that port is denied access ...