The term hybrid is usually used to describe a combination of an on-premises data center and a set of cloud-based resources. Hybrid architectures are becoming increasingly common for the simple reason that as big organizations move to the cloud, they need a hybrid setup during the migration period, and while they evaluate whether their cloud strategy is the right one.
The importance of hybrid infrastructures makes the VPN service a particularly important one for organizations that are moving to the cloud. It is trivial to set up a VPN connection between your on-premises setup and your organizations' cloud resources. This VPN connection will be secure, with a gateway at each end. The gateway at your on-premises end will be a physical one that you control, while the gateway at the GCP end is a virtual router, managed by the GCP.
There is a fair bit of advanced...