Google Professional Cloud Architect: Hybrid Connectivity on Google Cloud

Hybrid cloud stops being an abstract architecture choice as soon as an application needs to reach a database, directory, factory network, branch, partner, or private service that still lives outside Google Cloud. The network path then becomes part of the application’s availability, security, latency, and operating model.

A sound design starts with those requirements rather than with a product name. That constraint-first mindset is central to cloud architecture and is especially important when the path crosses organizational and provider boundaries.