AZ-900 Describe Azure management and governance Practice Question
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?
⚠ Common exam trap
A common mix-up: candidates confuse 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.
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 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.
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 Cost Management + Billing
Why this is correct
Azure Cost Management + Billing is the dedicated service for monitoring, analyzing, and allocating expenditure across Azure subscriptions. It provides cost analysis views, budgets, and alerts, and supports cost allocation rules that let you assign shared costs to different departments based on tags or formulas. This directly meets the requirement to track and distribute costs across multiple subscriptions for chargeback or showback.
- ✗
Azure Policy
Why it's wrong here
Azure Policy focuses on governing resource behavior by evaluating and enforcing rules on resource properties, such as allowed locations or SKU sizes. It can deny noncompliant resources or apply remediation tasks, but it has no cost visibility and cannot logically, financially, or structurally split costs across subscriptions. Policy enforces governance; it does not perform cost allocation.
When this WOULD be correct
When the question asks which tool enforces tagging requirements (e.g., requiring specific tags on resources) or audits compliance with organizational standards, Azure Policy is the correct answer.
- ✗
Azure Blueprints
Why it's wrong here
Azure Blueprints allows you to package reusable Azure resources such as policy assignments, role assignments, resource groups, and ARM templates to orchestrate a compliant environment. While this helps standardize department subscriptions, it does not collect or manage cost data; cost allocation is outside its scope. Blueprints define what gets deployed, not how spend is tracked or divided.
When this WOULD be correct
When the question asks about deploying a standardized environment with pre-defined policies, role assignments, and resource templates across multiple subscriptions to ensure compliance and governance.
- ✗
Azure Advisor
Why it's wrong here
Azure Advisor analyzes your deployed resources and offers personalized recommendations to improve cost efficiency, performance, reliability, and security. For cost, it suggests actions like right-sizing underutilized virtual machines or removing unprovisioned resources, but it does not attribute spending to departments or generate allocation reports. Advisor helps you spend less but does not tell you who should be charged for the spend.
When this WOULD be correct
A company wants to receive personalized recommendations to reduce Azure costs, improve security, and increase reliability. Azure Advisor would be the correct tool to provide these optimization suggestions.
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 Cost Management + BillingCorrect answer▾
Why this is correct
Azure Cost Management + Billing is the dedicated service for monitoring, analyzing, and allocating expenditure across Azure subscriptions. It provides cost analysis views, budgets, and alerts, and supports cost allocation rules that let you assign shared costs to different departments based on tags or formulas. This directly meets the requirement to track and distribute costs across multiple subscriptions for chargeback or showback.
✗Azure PolicyWrong answer — click to see why▾
Why this is wrong here
Azure Policy is used to enforce compliance rules and tags, but it does not provide cost tracking or allocation capabilities. Cost management requires Azure Cost Management + Billing.
★ When this WOULD be the correct answer
When the question asks which tool enforces tagging requirements (e.g., requiring specific tags on resources) or audits compliance with organizational standards, Azure Policy is the correct answer.
Why candidates choose this
Candidates may confuse Azure Policy's ability to enforce tags with the ability to track and allocate costs based on those tags, assuming policy covers cost analysis.
✗Azure BlueprintsWrong answer — click to see why▾
Why this is wrong here
Azure Blueprints is used for defining a repeatable set of Azure resources and policies for compliance and governance, not for tracking and analyzing costs based on tags.
★ When this WOULD be the correct answer
When the question asks about deploying a standardized environment with pre-defined policies, role assignments, and resource templates across multiple subscriptions to ensure compliance and governance.
Why candidates choose this
Candidates may confuse Blueprints' ability to assign tags and policies with cost management, thinking it can allocate costs, but its primary purpose is environment orchestration, not cost analysis.
✗Azure AdvisorWrong answer — click to see why▾
Why this is wrong here
Azure Advisor provides recommendations for cost optimization, security, and performance, but it does not track, analyze, or allocate costs based on tags. Cost allocation and analysis require Azure Cost Management + Billing.
★ When this WOULD be the correct answer
A company wants to receive personalized recommendations to reduce Azure costs, improve security, and increase reliability. Azure Advisor would be the correct tool to provide these optimization suggestions.
Why candidates choose this
Candidates may confuse cost optimization recommendations (Advisor) with actual cost tracking and allocation, assuming Advisor can perform both functions.
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?”
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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.