Location Groupings

Zone: the finest-grain. Can think of as a data center. Examples: us-central1-a, us-central1-b, asia-northeast1

Region: zones grouped into regions. A region is an "independent geographic area". Zones in the same region have very fast network interconnects. Examples: us-central1, us-west2, asia-south1,

Multi-region: a geographic area containing more than one region. Example: us, europe, australia.

Global: everything. Example: virtual priviate clouds (VPCs) are global.