Free sections from Ultra Transcenders AZ-900: Microsoft Azure Fundamentals, on the comparisons and decisions the exam keeps asking about.
Which security and management duties Microsoft owns, which you always keep, and which shift by service type.
What each cloud service type gives you, what you still manage, and typical use cases for each.
What sovereign regions are, who can use them, and how they differ from the public Azure regions.
How peering connects virtual networks within and across regions, and what traffic and transitivity rules apply.
How each storage redundancy option copies your data and which failures it protects against.
The three Zero Trust principles and how they change the traditional network-perimeter approach to security.
How resource locks prevent accidental deletion or change, how they inherit, and how they differ from RBAC and Policy.
What Azure Advisor recommends across its categories and how it fits alongside Service Health and Azure Monitor.