What Is Firewall?

A network security device or software that filters incoming and outgoing traffic based on predefined rules.

Firewall across 2 exams

Firewall appears on the following exams. Each defines it in the context candidates are tested on:

CC
A network security device or software that filters incoming and outgoing traffic based on predefined rules.
CCST Networking
A security device or software function that inspects and filters network traffic according to a defined rule set to block unauthorized access.