AZ-900 Describe Azure management and governance Practice Question
A company uses Azure for multiple projects. The IT governance team wants to ensure that every new Azure resource within a subscription is automatically assigned a 'CostCenter' tag based on the resource group it is created in. The team does not want to rely on users manually applying the tag. They need a built-in Azure solution that enforces this rule without custom scripts. Which Azure feature should they use?
⚠ Common exam trap
Many exam-takers confuse Azure Policy (which enforces rules) with Azure Tags (which are just metadata) or Azure Resource Graph (which only queries), leading them to pick a manual or non-enforcing option.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Azure Policy with the 'Inherit a tag from the resource group if missing' effect
Azure Policy with the 'Inherit a tag from the resource group if missing' effect is correct because it automatically applies the 'CostCenter' tag from the resource group to any new resource created within that resource group, without requiring manual intervention or custom scripts. This built-in policy effect enforces governance rules at scale, ensuring compliance across the subscription.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Azure Policy with the 'Inherit a tag from the resource group if missing' effect
Why this is correct
Correct. Azure Policy includes built-in effects (e.g., modify, append) that can automatically apply or inherit tags. The 'Inherit a tag from the resource group if missing' effect copies the resource group's tag value to resources that do not already have that tag, ensuring automatic compliance.
- ✗
Azure Resource Graph
Why it's wrong here
Incorrect. Azure Resource Graph is a query service that allows you to explore and discover resources across subscriptions. It can report on which resources are missing tags, but it cannot automatically apply or enforce tag inheritance. It is a read-only tool.
When this WOULD be correct
An exam question asks: 'You need to quickly find all virtual machines in your subscription that are missing the 'CostCenter' tag. Which Azure tool should you use?' In that scenario, Azure Resource Graph would be correct for querying and discovering resources without tags.
- ✗
Azure Management Groups
Why it's wrong here
Incorrect. Management Groups provide a hierarchical structure for organizing subscriptions and applying policies or RBAC at scale. However, they do not directly perform tag inheritance. The actual tag inheritance is achieved by assigning an Azure Policy definition to a management group or subscription scope; the management group itself is not the enforcement mechanism.
When this WOULD be correct
A company wants to apply the same compliance policy (e.g., allowed regions) across multiple subscriptions. They should use Azure Management Groups to aggregate subscriptions and assign a policy at the management group level, ensuring all child subscriptions inherit the policy.
- ✗
Azure Tags (manual tagging feature)
Why it's wrong here
Incorrect. While Azure Tags are key-value pairs used for metadata and cost tracking, the manual tagging feature only allows users to apply tags manually or via scripts. It does not automatically inherit tags from the resource group. The governance team needs an automated enforcement tool, which is Azure Policy.
When this WOULD be correct
A question asks for a method to manually organize resources by adding metadata like 'CostCenter' to resources after they are created, with no requirement for automation or enforcement.
Option-by-option analysis
Why each answer is right or wrong
Understanding why wrong answers are wrong — and when they would be correct — is what separates a 750 score from a 900. The AZ-900 exam frequently reuses these exact scenarios with slightly different constraints.
✓Azure Policy with the 'Inherit a tag from the resource group if missing' effectCorrect answer▾
Why this is correct
Correct. Azure Policy includes built-in effects (e.g., modify, append) that can automatically apply or inherit tags. The 'Inherit a tag from the resource group if missing' effect copies the resource group's tag value to resources that do not already have that tag, ensuring automatic compliance.
✗Azure Resource GraphWrong answer — click to see why▾
Why this is wrong here
Azure Resource Graph is a query tool for exploring resources, not an enforcement mechanism. It cannot automatically assign tags or enforce governance rules.
★ When this WOULD be the correct answer
An exam question asks: 'You need to quickly find all virtual machines in your subscription that are missing the 'CostCenter' tag. Which Azure tool should you use?' In that scenario, Azure Resource Graph would be correct for querying and discovering resources without tags.
Why candidates choose this
Candidates may confuse Resource Graph's ability to query resources with the ability to enforce policies, thinking that if it can find missing tags, it can also apply them.
✗Azure Management GroupsWrong answer — click to see why▾
Why this is wrong here
Azure Management Groups organize subscriptions hierarchically for policy and access management, but they cannot automatically apply tags to resources within a subscription. The requirement is to enforce tag inheritance from resource groups, which is a policy effect, not a management group capability.
★ When this WOULD be the correct answer
A company wants to apply the same compliance policy (e.g., allowed regions) across multiple subscriptions. They should use Azure Management Groups to aggregate subscriptions and assign a policy at the management group level, ensuring all child subscriptions inherit the policy.
Why candidates choose this
Candidates may confuse management groups with policy assignment scopes, thinking that grouping subscriptions can enforce tagging rules, but management groups do not directly modify resource tags.
✗Azure Tags (manual tagging feature)Wrong answer — click to see why▾
Why this is wrong here
Azure Tags (manual tagging feature) requires users to manually apply tags to resources, which contradicts the requirement to automatically enforce tag inheritance without user intervention.
★ When this WOULD be the correct answer
A question asks for a method to manually organize resources by adding metadata like 'CostCenter' to resources after they are created, with no requirement for automation or enforcement.
Why candidates choose this
Candidates may confuse the concept of tags as a way to organize resources with the need for automated enforcement, assuming that tags themselves can be set to auto-apply.
Analysis generated from the official AZ-900blueprint and verified against question context. The “when correct” sections are what AI assistants cite when candidates ask “what’s the difference between these options?”
Go deeper
Related to this question
Learn chapter
Azure Cost Management and Billing
Key term
Azure Policy
Azure Policy is a service in Microsoft Azure that lets you create, assign, and manage rules to ensure your resources stay compliant with your company standards and service-level agreements.
Key term
Azure resource
An Azure resource is a manageable item available through Microsoft Azure, such as a virtual machine, database, or web app.
About these practice questions
This AZ-900 question is part of Courseiva's 981-question bank — original exam-style content with full explanations and wrong-answer analysis, never real exam questions or exam dumps. Learn why practice questions differ from exam dumps →
JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This AZ-900 practice question is part of Courseiva's free Microsoft certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the AZ-900 exam.