2023 IT Examiner School

Internal Use Only

Network Topology: Demilitarized Zone (DMZ)

Internal Use Only

Perimeter Devices & Security Zones Firewalls and Routers* form perimeters between internal and external networks. • Responsible for filtering

Companies often logically segment networks by similar security needs. Examples of services within semi-trusted zones include e-mail relays, remote access servers, and web servers.

*With ACL or access lists.