AZ-900 - Describe Azure Architecture and Services (36% of the exam) - Section 2.1

Describe the core architectural components of Azure including regions, availability zones, resources, resource groups, subscriptions, and management groups.

Describe how Azure organises its global infrastructure into regions, region pairs, and availability zones, and explain how resources, resource groups, subscriptions, and management groups form a hierarchy for organising and governing workloads. Apply this hierarchy to determine the correct scope for applying policies, budgets, or access controls.

Azure regions and region pairsavailability zonesresources and resource groupssubscriptionsmanagement groups

Practice question for this objective

Free sampleDescribe Azure Architecture and Serviceseasy

Do Azure management groups sit above subscriptions in the management hierarchy?

AYes Correct
BNo

Hierarchy order: management groups, then subscriptions, then resource groups, then resources. Management groups sit above subscriptions, and governance conditions applied to a management group inherit to all subscriptions within it.

Why A is correct: Correct. Management groups sit above subscriptions, and governance conditions applied to a management group inherit to all subscriptions within it.

Why B is wrong: Answering No reverses the hierarchy; subscriptions sit below management groups, not above them.

See more AZ-900 practice questions, answers explained.

Exam traps in Describe Azure Architecture and Services

Answers that look right on this material and are not. Each one is a distractor from a different question in the AZ-900 bank for this domain.

Subscriptions, then management groups, then resources, then resource groups
Why it is wrong: This places subscriptions above management groups, but management groups actually sit above subscriptions, and it also puts resources above resource groups, inverting the bottom of the hierarchy.
A resource group that the subscriptions are placed within
Why it is wrong: A resource group is a container for resources inside a single subscription and sits below the subscription, so it cannot hold subscriptions or push inherited governance down across many of them.
There are always exactly two availability zones in the region
Why it is wrong: Two zones would fall short of the stated minimum, and Microsoft fixes the guarantee at a minimum of three rather than an exact count of two, so this understates the requirement.

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