The image shows an OCI region and an internet region with users.

The OCI region contains a VCN, VCN-1 (front), and VCN-2 (back), as well as an Oracle Services Network with:

• Monitoring
• Auditing
• Logging
• Object Storage

The VCN contains a WAF and a public subnet with a public load balancer. The public load balancer sends data to the internet users via the WAF and an internet gateway.

VCN-1 (front) contains application 1 and application 2 within a private subnet. These applications receive data from the public load balancer in the public subnet.

VCN-2 (back) contains database 1 and database 2 within a private subnet.

Each VCN has a security gateway that sends and receives data from Object Storage.