The image shows an AWS region with an availability zone, which contains an application VPC and an ODB network, and an OCI region.

• The application VPC contains two subnets: App-A subnet and App-B subnet, each with two applications.
• The ODB network hosts an Oracle Database@AWS OCI child site. Within the child site is a VCN and two subnets, which extend into the OCI Region. The VCN hosts a Client and a Backup subnet. The Client subnet hosts an instance of Oracle Exadata Database Service which spans both the client and backup subnets. Access to both subnets is controlled by a routing table and a Network Security Group (NSG). Oracle Autonomous Database sits entirely inside the Client subnet.

Traffic flows bidirectionally between the Application VPC using ODB peering connectivity to the ODB network.