A device that permits only requested traffic to enter a computer system is known as a(n):
A)Central processing unit (CPU).
B)Firewall.
C)Cookie.
D)Internet cache.

Question

Quizplus · Accepted Answer

A firewall is a network security device that monitors and filters incoming and outgoing network traffic based on an organization's previously established security policies. At its most basic, a firewall is essentially the barrier that sits between a private internal network and the public Internet. Its purpose is to permit only requested traffic to enter a computer system, blocking unwanted access or data breaches.

A Device That Permits Only Requested Traffic to Enter a Computer