Network Zones

Corporate Head-Quarter:
DMZ:

1. Extranet: Vendors
2. Web: Front-end Sites (a) Web (b) Application (c) Data
3. Public: Public, satellite VPN connections 

Internal:

1. Warehouse: (a) scanners (b) guests (c) 
2. Offices (departmental VLAN seggregation): (a) Executives (b) Accounting (c) Sales-Marketing (d) Customer-Service(e) IT-Infrastructure (f) DEV (g) InfoSec (h) Returns (j) R-and-D (k) Production
3. Servers: (a) Data (b) Application (c) Front-End
4. Printers

Cloud Amazon Web Services & Microsoft Azure:       
1. Web Tier: Availability Zone 1 & 2
2. App Tier:  Availability Zone 1 & 2      
3. Data Tier Availability Zone 1 & 2