This image shows the components of an alternative architecture for a web/mobile pattern. An OCI instance is shown with a VCN containing Instance Pools and three Private Subnets, each with a Route Table. Users connect through OCI DNS, DDoS Protection, and WAF components to the first Private Subnet which cointains a Load Balancer protected with NSG. The first Private Subnet connects to the second Private Subnet which contains an Autoscaling Web/App Tier with two Web Servers, each with an NSG. THe second Private Subnet connects to the third Private Subnet which contains an Autonomous Database with an NSG.