This image shows a network architecture in an Oracle Cloud Infrastructure (OCI) Region with a single Virtual Cloud Network (VCN) containing two subnets: App Subnet and Database Subnet

The App Subnet has these components:

• NSG App1 represents a network security group for application workloads
• NSG App2 represents a second, separate application security group

The Database Subnet has these components grouped with and respectively:

• NSG Database1 is grouped with and aligned below NSG App1 with a two-way arrow connecting them both.
• NSG Database2 is grouped with and aligned below NSG App2 with a two-way arrow connecting them both.