Which term refers to a hardware device dedicated to firewall functionality that is typically a standalone unit?

Which term refers to a hardware device dedicated to firewall functionality that is typically a standalone unit?

• A. State table
• B. Router firewall
• C. Appliance firewall
• D. Packet filtering firewall

Answer: (C)

An appliance firewall is a hardware device dedicated to firewall tasks, usually a standalone unit. It’s designed specifically for security screening, with purpose-built hardware and a dedicated operating system to optimize performance and features like NAT, VPN, and deep packet inspection. This makes it distinct from general-purpose routers that just include firewall capabilities or from software-based firewalls running on servers or desktops. The other terms describe different ideas: a state table is an internal data structure the firewall uses to track active connections, not a hardware type; a router firewall refers to firewall functionality embedded in a router, which may be a general-purpose device; and a packet filtering firewall describes a method of filtering based on header information, not a standalone hardware appliance.

An appliance firewall is a hardware device dedicated to firewall tasks, usually a standalone unit. It’s designed specifically for security screening, with purpose-built hardware and a dedicated operating system to optimize performance and features like NAT, VPN, and deep packet inspection. This makes it distinct from general-purpose routers that just include firewall capabilities or from software-based firewalls running on servers or desktops.

The other terms describe different ideas: a state table is an internal data structure the firewall uses to track active connections, not a hardware type; a router firewall refers to firewall functionality embedded in a router, which may be a general-purpose device; and a packet filtering firewall describes a method of filtering based on header information, not a standalone hardware appliance.