Week 8 descended through every layer of VPC as a virtual data center. First, we saw VPC's emergence replacing EC2-Classic and Security Group/NACL's stateful/stateless separation. Second, we observed traffic through Flow Logs, Traffic Mirroring, and Reachability Analyzer's three abstraction levels. Third, we explored three ways to meet outside — NAT GW, VPC Endpoint, PrivateLink. Fourth, we connected multiple VPCs and on-premises — Transit Gateway, VPN, Direct Connect, Route 53.
This section doesn't recap those four — instead it synthesizes exam-frequent scenario decision trees into 12 problems