The process of maintaining a table listing all established connections between the organization's computers and the internet to determine whether an incoming packet is part of an ongoing communication initiated by an internal computer is known as
A) stateful packet filtering.
B) deep packet inspection.
C) access control list.
D) static packet filtering.

Question

Quizplus · Accepted Answer

Stateful packet filtering involves maintaining a table of all established connections between the organization's computers and the internet. This allows the firewall to determine whether an incoming packet is part of an ongoing communication initiated by an internal computer, and therefore whether it should be allowed through the firewall or not. Deep packet inspection and access control lists are also firewall technologies, but do not specifically involve the maintenance of a table of established connections. Static packet filtering is not a commonly used firewall technology.

The Process of Maintaining a Table Listing All Established Connections