AZ-900 Describe Azure management and governance Practice Question
A company wants to track and manage costs across multiple Azure subscriptions. They have created a hierarchy of management groups: Root -> Department A -> Project 1, Project 2. They want to see the total cost for Department A across all its projects. Which Azure tool should they use?
⚠ Common exam trap
Many candidates confuse Azure Advisor's cost recommendations with actual cost tracking, or think Azure Monitor's metrics can provide billing data, but only Cost Management + Billing aggregates actual consumption costs across management groups and subscriptions.
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
✓
Cost Management + Billing
Cost Management + Billing is the correct tool because it provides consolidated cost tracking and analysis across multiple subscriptions and management groups. By organizing subscriptions under the Department A management group, Cost Management can aggregate costs from Project 1 and Project 2, allowing the company to view the total cost for Department A in a single dashboard or report.
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
Why it's wrong here
Azure Policy is a governance service that enforces organizational rules on Azure resources, such as allowed locations or mandatory tags. While policy can indirectly affect expenditure through compliance (e.g., restricting expensive SKUs), it does not collect, store, or present cost metrics. Its primary purpose is regulatory and operational governance, not financial tracking.
When this WOULD be correct
A company needs to ensure that all resources deployed in a subscription comply with specific naming conventions and tagging requirements. Azure Policy would be the correct tool to enforce these rules.
- ✓
Cost Management + Billing
Why this is correct
Cost Management + Billing is the dedicated Azure solution for cloud financial governance. It aggregates and analyzes cost data across multiple subscriptions, resource groups, and management group scopes, providing roll-up views, budgets, and anomaly alerts. This enables precise tracking and management of spending across an entire Azure estate.
- ✗
Azure Advisor
Why it's wrong here
Azure Advisor offers personalized best-practice recommendations, including cost optimization such as resizing idle virtual machines or buying reserved instances. However, it only provides proactive guidance based on telemetry and workload patterns; it does not offer an aggregated, historical view of current spending across subscriptions. It complements, but does not replace, cost management tools.
When this WOULD be correct
Azure Advisor would be correct if the question asked: 'Which Azure tool provides recommendations to reduce costs and improve performance across Azure resources?'
- ✗
Azure Monitor
Why it's wrong here
Azure Monitor focuses on collecting and analyzing telemetry data like metrics, logs, and events from Azure resources to ensure performance and availability. Although custom alerts can be built on cost-related data, Monitor is engineered for operational diagnostics rather than financial cost aggregation. It cannot produce subscription-wide cost reports or billing roll-ups.
When this WOULD be correct
A company needs to monitor performance metrics and set alerts for resource utilization across multiple Azure subscriptions. Azure Monitor would be the correct tool to collect and analyze telemetry data and trigger alerts based on thresholds.
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.
✓Cost Management + BillingCorrect answer▾
Why this is correct
Cost Management + Billing is the dedicated Azure solution for cloud financial governance. It aggregates and analyzes cost data across multiple subscriptions, resource groups, and management group scopes, providing roll-up views, budgets, and anomaly alerts. This enables precise tracking and management of spending across an entire Azure estate.
✗Azure PolicyWrong answer — click to see why▾
Why this is wrong here
Azure Policy is used to enforce organizational standards and assess compliance, not to track or manage costs across subscriptions.
★ When this WOULD be the correct answer
A company needs to ensure that all resources deployed in a subscription comply with specific naming conventions and tagging requirements. Azure Policy would be the correct tool to enforce these rules.
Why candidates choose this
Candidates may confuse policy enforcement with cost management, thinking that policies can control spending by restricting resource types or locations.
✗Azure AdvisorWrong answer — click to see why▾
Why this is wrong here
Azure Advisor provides personalized recommendations for cost optimization, security, and reliability, but it does not provide a consolidated view of costs across multiple subscriptions or management groups. The question specifically asks for tracking and managing costs, which is the function of Cost Management + Billing.
★ When this WOULD be the correct answer
Azure Advisor would be correct if the question asked: 'Which Azure tool provides recommendations to reduce costs and improve performance across Azure resources?'
Why candidates choose this
Candidates may confuse Azure Advisor's cost recommendations with actual cost tracking and management, assuming that recommendations imply visibility into costs.
✗Azure MonitorWrong answer — click to see why▾
Why this is wrong here
Azure Monitor is used for collecting, analyzing, and acting on telemetry from cloud and on-premises environments, not for tracking and managing costs across subscriptions.
★ When this WOULD be the correct answer
A company needs to monitor performance metrics and set alerts for resource utilization across multiple Azure subscriptions. Azure Monitor would be the correct tool to collect and analyze telemetry data and trigger alerts based on thresholds.
Why candidates choose this
Candidates may confuse monitoring costs with monitoring performance, assuming Azure Monitor can handle cost tracking because it provides broad observability.
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
Dashboard
A dashboard is a visual display of key metrics and data points that helps IT professionals monitor, analyze, and manage systems or processes in real time.
Key term
Cost Management
Cost Management is the practice of planning, controlling, and optimizing spending on cloud resources to stay within budget and maximize value.
About these practice questions
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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.