Are you familiar with network zones (DMZ, Alpha, Sigma, etc.)?

Yes, I am familiar with the concept of network zones. DMZ (Demilitarized Zone) is an isolated network that separates an organization's internal network from the external internet, allowing for the safe hosting of public services (e.g., web servers).

Alpha and Sigma are examples of zone names that can be used in specific organizations to differentiate networks based on trust level or functionality. For example, Alpha might be an internal development network, while Sigma could be a testing network.

The main idea is network segmentation to enhance security and manage access between zones.