A software program installed on a computer, like normal software; it is generally used to filter traffic for individual home users; it only filters traffic for the computer on which it is installed?

A software program installed on a computer, like normal software; it is generally used to filter traffic for individual home users; it only filters traffic for the computer on which it is installed?

• A. Software Firewall
• B. Firewall
• C. Intrusion Prevention System (IPS)
• D. Demilitarized Zone

Answer: (A)

This question is about host-based firewall software. A software firewall is installed on a single computer and controls traffic to and from just that machine. It's the typical choice for home users who want protection on their own device without affecting other devices on the network. It runs within the operating system and enforces rules for inbound and outbound connections for that specific host, often allowing per-application control. This differs from a network firewall or hardware appliance that sits at the network edge and protects multiple devices, an intrusion prevention system that monitors and blocks threats (which can be network-wide or host-based but isn’t described as a single-program filter for one machine), or a DMZ, which is a separate network segment exposed to untrusted networks. So the described scenario best matches a software firewall.

This question is about host-based firewall software. A software firewall is installed on a single computer and controls traffic to and from just that machine. It's the typical choice for home users who want protection on their own device without affecting other devices on the network. It runs within the operating system and enforces rules for inbound and outbound connections for that specific host, often allowing per-application control. This differs from a network firewall or hardware appliance that sits at the network edge and protects multiple devices, an intrusion prevention system that monitors and blocks threats (which can be network-wide or host-based but isn’t described as a single-program filter for one machine), or a DMZ, which is a separate network segment exposed to untrusted networks. So the described scenario best matches a software firewall.