Regions
Regions are independent geographical locations that consists of zones
GCP has 25+ regions
Points of Presence (PoP)
Intermediate location between GCP regions and end users
These locations can be a third party data center or collection of hardware
Edge PoP
A location where the user can quickly enter (ingress) the GCP network for faster access to resources
CDN PoP
A location to serve (egress) cached websites, files, assets so they load very fast for end user
Cloud Media Edge
A location specialized for the delivery of media like video content
Zone
It is a physical location made up of one or more datacenter
A region will generally have 3 Zones
Datacenters in zones are isolated from each other
We can deploy a service in multiple zones to achieve higher fault tolerance
Zonal Resource
A service that belongs to a single zone
Regional Resource
Resource that resides in multiple zones in a single region
Multi-regional Resource
Resource resides across zones present in multiple regions
Global Resource
Resource resides globally and resources and zones are abstracted away
Internal Services
Foundational services that are used by many other services
We cannot interact with these resources directly