GCP - Professional Cloud Network Engineer Study Guide

4: Configuring and implementing hybrid and multicloud network interconnectivity

This chapter builds the physical and encrypted connectivity that links a Google Cloud VPC network to on-premises data centers, branch offices, and other public clouds. It configures Dedicated, Partner, and Cross-Cloud Interconnect with their VLAN attachments and BGP sessions, then layers HA VPN and Classic VPN on top, tunes Cloud Router behavior, and resolves the transit limitations that appear once several networks meet at one hub.