The answer is Azure Cost Management + Billing, as it is the native Azure feature designed to view and analyze Azure costs by resource tags. This service enables cost allocation by allowing you to apply tag inheritance and filter cost analysis views, so you can group spending by custom tags like Department or Project across multiple subscriptions. On the AZ-900 exam, this question tests your understanding of how to track resource usage and assign costs to specific departments, often appearing as a scenario where you need to choose the tool for cost visibility rather than governance or policy enforcement. A common trap is confusing this with Azure Policy, which enforces tagging rules but does not analyze costs. Remember the memory tip: “Cost Management tags the bill, Policy tags the will”—Cost Management is for financial analysis, while Policy ensures tags exist.
AZ-900 Describe Azure management and governance Practice Question
This AZ-900 practice question tests your understanding of describe azure management and governance. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. 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.
A company wants to track resource usage across departments and projects. They have multiple Azure subscriptions. They need to assign costs to specific departments based on resource usage. Which Azure feature enables them to view and analyze costs by resource tags?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
A) Azure Cost Management + Billing
Azure Cost Management + Billing provides the tools to view, analyze, and allocate costs across subscriptions and resources. By enabling tag inheritance and using cost analysis filters, you can group costs by resource tags (e.g., Department or Project) to assign spending to specific departments. This is the correct feature because it directly supports cost tracking and allocation by tags.
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.
✓
A) Azure Cost Management + Billing
Why this is correct
Cost Management allows you to view costs broken down by tags, enabling cost allocation to departments.
Related concept
Read the scenario before looking for a memorised answer.
✗
B) Azure Policy
Why it's wrong here
Policy enforces tagging but does not provide cost analysis capabilities.
✗
C) Azure Tags
Why it's wrong here
Tags themselves are metadata; they need a tool like Cost Management to analyze costs.
✗
D) Azure Resource Groups
Why it's wrong here
Resource groups are logical containers but do not provide cross-subscription cost analysis by department.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates confuse Azure Tags (the metadata) with the tool that analyzes costs by those tags, mistakenly selecting 'Azure Tags' instead of 'Azure Cost Management + Billing' which actually performs the analysis.
Detailed technical explanation
How to think about this question
Under the hood, Azure Cost Management ingests usage and billing data from the Microsoft Commerce system, applying resource tags at the time of usage. Tag inheritance can be enabled in Cost Management to propagate tags from resource groups or subscriptions to child resources, ensuring accurate cost allocation even if tags are missing on individual resources. In a real-world scenario, a company with multiple subscriptions can use Cost Management's 'Group by' feature with custom tag keys (e.g., 'Department') to generate per-department cost reports, which is essential for chargeback or showback models.
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-900 question in full detail.
Describe Azure management and governance — This question tests Describe Azure management and governance — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: A) Azure Cost Management + Billing — Azure Cost Management + Billing provides the tools to view, analyze, and allocate costs across subscriptions and resources. By enabling tag inheritance and using cost analysis filters, you can group costs by resource tags (e.g., Department or Project) to assign spending to specific departments. This is the correct feature because it directly supports cost tracking and allocation by tags.
What should I do if I get this AZ-900 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
About these practice questions
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Variation 1. A company wants to track spending across different projects. They have multiple Azure subscriptions and need to assign costs to specific departments based on resource usage. Which Azure feature enables them to view and analyze costs by resource tags?
medium
✓ A.Azure Cost Management
B.Azure Policy
C.Azure Advisor
D.Azure Monitor
Why A: Azure Cost Management provides tools to view, analyze, and optimize cloud spending. It supports filtering and grouping costs by resource tags, enabling you to assign costs to specific departments or projects based on tagged resource usage.
Last reviewed: Jun 11, 2026
Question Discussion
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