If you have one computer,you need firewall hardware; if you have more than one (networked)computer,then a software firewall should be used.

Question

Quizplus · Accepted Answer

If you have more than one networked computer, you still need a hardware firewall to protect the entire network from external threats. In addition, each individual computer should have a software firewall as an added layer of protection.

If You Have One Computer,you Need Firewall Hardware; If You