Which is a dedicated stand-alone hardware device or part of a router; the network traffic is filtered using the packet filtering technique; used to filter out network traffic for large business networks?

• A. Software Firewall
• B. Bastion Host
• C. Hardware Firewalls
• D. Firewall

Answer: (C)

The network device described is a hardware firewall. It’s a dedicated, stand-alone appliance or an integrated module in a router designed to enforce access control by filtering traffic at the network boundary. Its hardware focus and typically higher throughput make it well suited for large business networks, where centralized, scalable packet filtering and security policy enforcement are essential.

This differs from a software firewall, which runs on a general-purpose host and shares resources with other applications, and from a bastion host, which is a fortified host placed in a DMZ rather than a primary traffic-filtering gateway. While the term firewall can refer to either hardware or software, the description specifically points to a dedicated hardware device or router component, hence hardware firewalls.