Eric works for a large company that has many employees. He needs to provide protection for the entire network that will prevent a virus from reaching a device on the network. What kind of network protection is Eric using?

Eric is using antivirus software to provide network protection for his company's network to prevent a virus from reaching a device on the network.

Tyrone works for an IT company. He is setting up a network that uses two dedicated servers that contain the data and software needed by the devices on the network. What type of network model is Tyrone using?