Both platforms provide the same categories of service under different names. Learning the shared model first means every platform-specific lesson becomes a translation exercise rather than new material, and it is the mental framework both exams assume.
Global infrastructure
Regions are geographic areas containing multiple isolated zones. Zones are separate facilities with independent power and networking. Some services are regional, some zonal, some global. Resilience design depends on knowing which.
Service models and responsibility
Infrastructure you manage, platforms that run your code, and complete software services. The provider secures the underlying platform; you secure what you build on it, and the boundary moves depending on the service type. Both exams test this boundary.
Accounts, subscriptions and organisation
A top-level container for resources and billing, grouped into an organisational hierarchy with policies inherited downward. The names differ; the structure is the same.
Action Step
Create a free-tier account on each platform. Locate the region list, the organisational hierarchy and the shared-responsibility documentation for each, and write a side-by-side glossary of the top twenty terms.
This is an independent study resource, not affiliated with, endorsed by or accredited by Amazon Web Services, Microsoft or any certification body, and it issues no credential. Exam objectives, formats, codes and pricing change regularly; always verify current details on the official certification pages before booking. Product names are used for identification only.