You have been given the task of installing a new firewall system for your network. You are
analyzing the different implementation options. Which of the following best describes a Single
Packet Filtering Device?

A.
This is when one device is configured to run as a packet filter, granting or denying access
based on the content of the headers.

B.
This is when a packet is received on one interface and sent out another interface.

C.
This is when a device has been configured with more than one network interface, and is
running proxy software to forward packets back and forth between the interfaces.

D.
This is when the device reads only the session layer and higher headers to grant or deny
access to the packet.

E.
This is when the network is protected by multiple functions.