A ____ firewall is a router (or a computer installed with software that enables it to act as a router) that examines the header of every packet of data it receives to determine whether that type of packet is authorized to continue to its destination.
A) packet-filtering
B) gateway
C) proxy
D) selective

Question

Quizplus · Accepted Answer

A packet-filtering firewall examines the header of every packet of data it receives to determine whether that type of packet is authorized to continue to its destination. Gateways and proxies are types of firewalls, but they may not necessarily use packet filtering as their primary method of filtering traffic. "Selective" is not a commonly used term to describe firewalls.

A ____ Firewall Is a Router (Or a Computer Installed