You are the network administrator for a small organization. Recently, you contracted with an ISP to connect your organization's network to the internet to provide users with internet access. Since doing so, it has come to your attention that an intruder has invaded your network from the internet on three separate occasions. What type of network hardware should you implement to prevent this from happening again?
A. Switch
B. Firewall
C. Router
D. CSU/DSU

Respuesta :

I would say a firewall you can go a long way with adding a firewall to any system or network