Quick Answer
The answer is Azure Cost Management + Billing. This tool is the correct choice because it provides native capabilities to monitor, analyze, and optimize cloud costs, and it directly supports tracking and allocating costs by tags applied to resources. By filtering or grouping cost data based on custom tags—such as “Department” or “Project”—you can assign charges to specific departments, even across multiple subscriptions. On the Microsoft Azure Fundamentals AZ-900 exam, this question tests your understanding of cost management tools and their integration with tagging for governance and accountability. A common trap is confusing Azure Cost Management with Azure Policy or Azure Blueprints, which enforce tagging rules but do not track or allocate costs. Remember: if the goal is to see and split costs by tags, you need a cost analysis tool, not a policy engine. A helpful memory tip is “Tags track costs”—Azure Cost Management + Billing is the only native service that lets you slice spending by those tags.
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. A key principle to apply: azure Cost Management + Billing provides detailed cost analysis.. 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 has multiple Azure subscriptions for different departments. They want to track and analyze costs, and allocate costs to each department based on tags applied to resources. Which Azure tool should they use?
Azure Cost Management + Billing
This tool is designed for cost analysis and allocation across subscriptions.
Azure Policy
Why wrong: Azure Policy enforces rules on resources, not cost management.
Azure Blueprints
Why wrong: Blueprints orchestrate environments but do not provide cost allocation.
Azure Advisor
Why wrong: Advisor provides recommendations for cost savings, but not cost allocation.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Azure Cost Management + Billing
Azure Cost Management + Billing provides native capabilities to monitor, analyze, and optimize cloud costs. It supports filtering and grouping costs by custom tags applied to resources, enabling allocation of charges to specific departments or cost centers. This directly meets the requirement to track and allocate costs based on tags.
Key principle: Azure Cost Management + Billing provides detailed cost analysis.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
Azure Cost Management + Billing
Why this is correct
This tool is designed for cost analysis and allocation across subscriptions.
Related concept
Azure Cost Management + Billing provides detailed cost analysis.
Azure Policy
Why it's wrong here
Azure Policy enforces rules on resources, not cost management.
Azure Blueprints
Why it's wrong here
Blueprints orchestrate environments but do not provide cost allocation.
Azure Advisor
Why it's wrong here
Advisor provides recommendations for cost savings, but not cost allocation.
Common exam traps
The trap here is confusing governance tools (Azure Policy, Blueprints) or advisory tools (Advisor) with the actual cost tracking and allocation service, leading candidates to pick a tool that enforces tagging rather than one that analyzes costs by tags.
Detailed technical explanation
Azure Cost Management uses the Azure Resource Manager (ARM) billing data pipeline to ingest usage and cost data at the resource level. Tags must be applied to resources before the billing cycle ends to be reflected in cost reports; retroactive tagging does not affect historical data. The tool supports cost allocation rules that can split shared costs across multiple tags or departments, enabling precise chargeback models.
Key takeaway
Azure Cost Management + Billing provides detailed cost analysis.
Real-world example
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.
What to study next
Review azure Cost Management + Billing provides detailed cost analysis., then practise related AZ-900 questions on the same topic to reinforce the concept.
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FAQ
Describe Azure management and governance — This question tests Describe Azure management and governance — Azure Cost Management + Billing provides detailed cost analysis..
The correct answer is: Azure Cost Management + Billing — Azure Cost Management + Billing provides native capabilities to monitor, analyze, and optimize cloud costs. It supports filtering and grouping costs by custom tags applied to resources, enabling allocation of charges to specific departments or cost centers. This directly meets the requirement to track and allocate costs based on tags.
Review azure Cost Management + Billing provides detailed cost analysis., then practise related AZ-900 questions on the same topic to reinforce the concept.
Azure Cost Management + Billing provides detailed cost analysis.
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Same concept, more angles
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Variation 1. A company has multiple Azure subscriptions for different departments. They want to receive budget alerts when spending in any subscription exceeds 80% of the allocated amount. Which Azure feature enables them to set up these alerts?
mediumWhy A: Azure Cost Management + Billing budgets allow you to create budget alerts based on actual or forecasted costs. You can set a budget amount and configure alerts to trigger when costs reach a specified percentage (e.g., 80%) of that budget. This directly meets the requirement to receive alerts when spending in any subscription exceeds 80% of the allocated amount.
Last reviewed: Jun 11, 2026
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