The answer is to assign the policy at the Corp management group scope and exclude the Finance management group. This works because Azure Policy allows you to define an assignment at a parent scope—here, Corp MG—and then explicitly exclude a child scope, which removes the Finance MG and all its subscriptions from policy evaluation while still covering HR, IT, and Marketing. On the AZ-305 exam, this scenario tests your understanding of policy inheritance and exclusion versus exemption: exclusion removes the scope entirely from the assignment, whereas exemption (e.g., for legacy resources) still evaluates but waives compliance. A common trap is confusing exclusion with exemption or assigning the policy at each child MG individually, which increases overhead. The key memory tip is “assign high, exclude low”—set the broadest scope possible, then carve out exceptions with exclusions to minimize administrative effort.
AZ-305 Practice Question: Design identity, governance, and monitoring solutions
This AZ-305 practice question tests your understanding of design identity, governance, and monitoring solutions. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
You are a cloud architect for a multinational corporation. The company has a single Azure tenant with a management group hierarchy: Root MG -> Corp MG -> (Finance, HR, IT, Marketing) child management groups. Each child management group contains multiple subscriptions. The IT governance team wants to enforce a policy that all Azure resources must have a 'CostCenter' tag. However, the Finance department has legacy resources that cannot be modified and must be exempt from this policy. You need to design a solution that meets the following requirements: (1) The policy should be applied to all subscriptions in the Corp MG except those in the Finance MG. (2) The policy should audit non-compliant resources but not deny them. (3) The solution must use Azure Policy and minimize administrative overhead. What should you do?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "minimum / minimize"
Why it matters: Asks for the least resource use — fewest addresses, smallest subnet, lowest overhead. Eliminate over-provisioned options even if they would technically work.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Assign the policy at the Corp management group scope and exclude the Finance management group.
Assigning the policy at the Corp management group scope and excluding the Finance management group meets all requirements: it applies the policy to all subscriptions under Corp (including Finance, HR, IT, Marketing) while the exclusion removes Finance from policy evaluation. Using the 'audit' effect ensures non-compliant resources are flagged but not denied, and this single assignment minimizes administrative overhead.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✗
Assign the policy at the Root management group and exclude all child management groups except Corp.
Why it's wrong here
This would exclude all child groups, not just Finance, and would not apply to IT and others.
✓
Assign the policy at the Corp management group scope and exclude the Finance management group.
Why this is correct
Assigning at Corp MG with exclusion for Finance MG meets all requirements with minimal overhead.
Clue confirmation
The clue word "minimum / minimize" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
✗
Assign the policy at each child management group except Finance.
Why it's wrong here
This requires multiple assignments and is more overhead.
✗
Assign the policy to each subscription individually, excluding those in Finance.
Why it's wrong here
This is not scalable and requires managing many assignments.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates mistakenly think they must assign the policy at the Root management group and then exclude all non-Corp children, but that would require multiple exclusions and could accidentally exclude the Corp management group itself, whereas a single assignment at Corp with one exclusion is simpler and correct.
Detailed technical explanation
How to think about this question
Azure Policy assignments at a management group scope are inherited by all child management groups and subscriptions within that scope, unless explicitly excluded. The exclusion parameter in a policy assignment removes a specific scope (e.g., a management group or subscription) from policy evaluation without affecting inheritance to other scopes. This design allows a single policy assignment to cover hundreds of subscriptions while selectively exempting a department's entire subtree.
KKey Concepts to Remember
Read the scenario before looking for a memorised answer.
Find the constraint that changes the correct option.
Eliminate answers that are true in general but not in this case.
TExam Day Tips
→Watch for words such as best, first, most likely and least administrative effort.
→Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A startup's cloud architect reviews their monthly bill and notices costs are higher than expected for a long-running batch job. Switching from on-demand instances to Reserved Instances — or using Spot/Preemptible VMs — can reduce compute costs by up to 72 %. Questions like this test whether you understand the tradeoffs between commitment, flexibility, and cost across cloud pricing models.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this AZ-305 question in full detail.
Design identity, governance, and monitoring solutions — This question tests Design identity, governance, and monitoring solutions — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Assign the policy at the Corp management group scope and exclude the Finance management group. — Assigning the policy at the Corp management group scope and excluding the Finance management group meets all requirements: it applies the policy to all subscriptions under Corp (including Finance, HR, IT, Marketing) while the exclusion removes Finance from policy evaluation. Using the 'audit' effect ensures non-compliant resources are flagged but not denied, and this single assignment minimizes administrative overhead.
What should I do if I get this AZ-305 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Are there clue words in this question I should notice?
Yes — watch for: "minimum / minimize". Asks for the least resource use — fewest addresses, smallest subnet, lowest overhead. Eliminate over-provisioned options even if they would technically work.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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