The image shows a multiple VPC architecture in Google Cloud with Project Production. Project Production has two VPCs: VPC Marketing and VPC Sales both in the same Google Cloud region but with separate VPCs having separate subnets, separate VM clusters. They connected to the same Oracle Exadata Database Service within the Google Cloud region.

VPC Marketing hosts a Subnet (192.168.1.0/24) which hosts a Marketing Application. The Marketing Application connects to the VM Cluster Marketing in a Client Subnet (192.168.1.0/24) and a Backup Subnet (192.168.3.0/24) in Oracle Database@Google Cloud.

VPC Sales hosts a Subnet (10.1.1.0/24) which hosts a Sales Application. The Sales Application connects to the VM Cluster Sales in a Client Subnet (10.1.2.0/24) and a Backup Subnet (10.1.3.0/24) in Oracle Database@Google Cloud.