2. Identify and describe the four basic techniques for arranging an enterprise’s Internet point of presence. The four basic techniques for arranging an enterprise’s Internet point of presence is a Single-Firewall Topology which uses no DMZ and all servers are inside the firewall. Next is the three-legged firewall technique and it provides separate connections to the internet service provider, the enterprise network, and a separate DMZ. Dual firewalls technique uses two firewalls, one to protect the internal network from the DMZ and the other to protect the entire enterprise. Finally, the Bastion-Host technique is less common today, but it provides services to the internet and uses a firewall.