What is a primary feature of an Internet Firewall?

A primary feature of an Internet firewall is to serve as the first line of defense for an internet-connected network. Firewalls are crucial security systems that monitor and control incoming and outgoing network traffic based on predetermined security rules. By filtering traffic, firewalls help prevent unauthorized access to or from a private network, making them essential for protecting sensitive information and maintaining the integrity of the network.

This defensive capability is fundamental, as it addresses various threats from external sources, including malware and hackers. Firewalls can be hardware-based, software-based, or a combination of both, allowing them to operate at different levels of network architecture. By effectively controlling data traffic and blocking potentially harmful requests, firewalls ensure that a network remains secure and resilient against cyber threats.