Firewalls can be classified into two main types, what are they?

Firewalls are primarily classified into hardware and software types based on their implementation and functionality within a network. Hardware firewalls are physical devices that sit between your network and traffic sources, controlling the flow of traffic through dedicated appliances. They often provide a high level of security and can be deployed at the perimeter of a network, managing traffic for multiple devices simultaneously.

Software firewalls, on the other hand, are applications installed on individual computers or servers. They monitor and control incoming and outgoing traffic based on predetermined security rules. Software firewalls are typically easier to update and configure on a per-device basis, allowing for granular control over which applications can send or receive data.

This classification captures the operational aspects of firewalls effectively, highlighting the differences in deployment and management strategies rather than their operational modes or characteristics as seen in the other choices.