- A
Azure Resource Graph
Azure Resource Graph is a service that allows you to query Azure resources across all subscriptions using Kusto Query Language (KQL). It is designed for inventory, governance, and compliance scenarios, enabling you to retrieve information like VM power state, OS, and size efficiently from multiple subscriptions.
- B
Azure Monitor Logs
Why wrong: Azure Monitor Logs collects log and telemetry data from Azure resources, applications, and operating systems. It is used for monitoring, alerting, and troubleshooting, but it is not designed for querying resource inventory metadata like VM power state or size across subscriptions.
- C
Azure Resource Explorer
Why wrong: Azure Resource Explorer is a portal interface that allows you to browse and manage individual Azure resources and their properties. It does not support running custom KQL queries across multiple subscriptions or generating reports on resource metadata at scale.
- D
Azure Advisor
Why wrong: Azure Advisor provides personalized recommendations to optimize your Azure deployments for cost, security, reliability, operational excellence, and performance. It does not have a query engine for retrieving resource properties or power states.
Quick Answer
The answer is Azure Resource Graph, which is the correct choice because it is a native Azure service specifically built for querying Azure resources at scale using Kusto Query Language (KQL). Unlike other tools, Azure Resource Graph allows you to run on-demand, complex queries across hundreds of subscriptions and resource groups, returning detailed properties like VM power state, operating system, and VM size in a single query. On the Microsoft Azure Fundamentals AZ-900 exam, this question tests your understanding of which Azure service provides cross-subscription, KQL-based resource exploration—a common trap is confusing Azure Resource Graph with Azure Monitor or Log Analytics, but remember that Resource Graph is designed for inventory and discovery of current resource state, not for historical logs or metrics. A simple memory tip: think of Resource Graph as the "Google search" for your Azure resources—it lets you find and filter any resource property across all subscriptions instantly using KQL syntax.
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. A key principle to apply: azure Resource Graph queries Azure resources at scale across subscriptions.. 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 large enterprise manages hundreds of Azure subscriptions. The compliance team needs to run an on-demand report that shows all virtual machines with their current power state (running or deallocated), operating system, and VM size, filtering by specific resource groups or subscriptions. The team wants to use a native Azure tool that allows querying Azure resources at scale using a Kusto Query Language (KQL) syntax. Which Azure service should they use?
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 Resource Graph
Azure Resource Graph is the correct choice because it is a native Azure service designed for querying Azure resources at scale using Kusto Query Language (KQL). It allows you to run on-demand, complex queries across multiple subscriptions, resource groups, and resource types, and can return properties such as power state, operating system, and VM size. This directly matches the compliance team's requirement for a scalable, KQL-based query tool that works across hundreds of subscriptions.
Key principle: Azure Resource Graph queries Azure resources at scale across subscriptions.
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 Resource Graph
Why this is correct
Azure Resource Graph is a service that allows you to query Azure resources across all subscriptions using Kusto Query Language (KQL). It is designed for inventory, governance, and compliance scenarios, enabling you to retrieve information like VM power state, OS, and size efficiently from multiple subscriptions.
Related concept
Azure Resource Graph queries Azure resources at scale across subscriptions.
- ✗
Azure Monitor Logs
Why it's wrong here
Azure Monitor Logs collects log and telemetry data from Azure resources, applications, and operating systems. It is used for monitoring, alerting, and troubleshooting, but it is not designed for querying resource inventory metadata like VM power state or size across subscriptions.
- ✗
Azure Resource Explorer
Why it's wrong here
Azure Resource Explorer is a portal interface that allows you to browse and manage individual Azure resources and their properties. It does not support running custom KQL queries across multiple subscriptions or generating reports on resource metadata at scale.
- ✗
Azure Advisor
Why it's wrong here
Azure Advisor provides personalized recommendations to optimize your Azure deployments for cost, security, reliability, operational excellence, and performance. It does not have a query engine for retrieving resource properties or power states.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates confuse Azure Monitor Logs (which also uses KQL) with Azure Resource Graph, but Monitor Logs is for telemetry and logs, not for querying resource metadata like VM power state or size across subscriptions.
Detailed technical explanation
How to think about this question
Azure Resource Graph uses a specialized KQL schema that maps to the Azure Resource Manager (ARM) resource model, allowing queries like 'where type =~ 'microsoft.compute/virtualmachines' | project name, powerState, osType, properties.hardwareProfile.vmSize'. The service indexes resource properties in near real-time, enabling fast queries across up to 1,000 subscriptions in a single request. A subtle behavior is that power state is not stored in ARM but is retrieved via the Compute Resource Provider; Resource Graph handles this by joining with the VM instance view data automatically.
KKey Concepts to Remember
- Azure Resource Graph queries Azure resources at scale across subscriptions.
- It uses Kusto Query Language (KQL) for powerful and flexible queries.
- Resource Graph is ideal for inventory, governance, and compliance reporting.
- It provides a snapshot of resource properties, including power state and configuration.
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
Azure Resource Graph queries Azure resources at scale across subscriptions.
Real-world example
How this comes up in practice
An e-commerce site experiences heavy traffic on Black Friday and near-zero traffic during off-peak weeks. Rather than provisioning permanent large VMs, the team uses auto-scaling groups that add capacity automatically under load and reduce it overnight. Questions like this test whether you understand elasticity, availability zones, and cloud compute scaling patterns.
What to study next
Got this wrong? Here's your next step.
Review azure Resource Graph queries Azure resources at scale across subscriptions., then practise related AZ-900 questions on the same topic to reinforce the concept.
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Describe Azure management and governance — study guide chapter
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Describe Azure management and governance practice questions
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FAQ
Questions learners often ask
What does this AZ-900 question test?
Describe Azure management and governance — This question tests Describe Azure management and governance — Azure Resource Graph queries Azure resources at scale across subscriptions..
What is the correct answer to this question?
The correct answer is: Azure Resource Graph — Azure Resource Graph is the correct choice because it is a native Azure service designed for querying Azure resources at scale using Kusto Query Language (KQL). It allows you to run on-demand, complex queries across multiple subscriptions, resource groups, and resource types, and can return properties such as power state, operating system, and VM size. This directly matches the compliance team's requirement for a scalable, KQL-based query tool that works across hundreds of subscriptions.
What should I do if I get this AZ-900 question wrong?
Review azure Resource Graph queries Azure resources at scale across subscriptions., then practise related AZ-900 questions on the same topic to reinforce the concept.
What is the key concept behind this question?
Azure Resource Graph queries Azure resources at scale across subscriptions.
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Last reviewed: Jun 11, 2026
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