Final answer:
To transfer data from an unsecure network to a secure one, a DMZ or Demilitarized Zone is commonly created, serving as a buffer zone that provides public access while maintaining security.
Step-by-step explanation:
In order to move data from an unsecure (not trusted) network to a secure network (trusted), you typically create a DMZ (Demilitarized Zone), which is a small "sub network" that exists between your private network and the untrusted network. Servers placed in this DMZ provide public-facing access to the organization, such as public websites, while also adding an additional layer of security by isolating them from the internal, trusted network.