The answer is Azure Resource Graph, as it is the only Azure service built specifically for querying resources across subscriptions using Kusto Query Language (KQL). Unlike Azure Monitor or Azure CLI, Azure Resource Graph is designed for fast, efficient resource discovery and inventory, allowing you to filter on properties like `createdTime` to find all virtual machines created in the last 30 days across multiple subscriptions, resource groups, and locations. On the AZ-900 exam, this question tests your understanding of Azure governance and management tools—a common trap is confusing Azure Resource Graph with Azure Resource Manager or Azure Monitor, but remember that Resource Graph is for exploration and querying, not monitoring or deployment. A simple memory tip: think of Resource Graph as the “Google search” for your Azure resources—it lets you ask complex questions in KQL and get instant answers across your entire environment.
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 uses Kusto Query Language (KQL).. 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.
An IT administrator needs to query all Azure resources across multiple subscriptions to find all virtual machines that were created in the last 30 days. They want to use a powerful query language. Which Azure service should they use?
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 service because it provides a powerful, Kusto Query Language (KQL)-based query engine that can efficiently explore and query Azure resources across multiple subscriptions, resource groups, and locations. It is specifically designed for resource discovery and inventory scenarios, such as finding all virtual machines created in the last 30 days, by filtering on properties like `createdTime`.
Key principle: Azure Resource Graph uses Kusto Query Language (KQL).
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
Correct. Resource Graph enables complex queries across subscriptions using KQL, ideal for resource discovery.
Related concept
Azure Resource Graph uses Kusto Query Language (KQL).
✗
Azure Monitor
Why it's wrong here
Azure Monitor collects telemetry and logs, not designed for querying resource inventory and metadata.
✗
Azure Resource Manager
Why it's wrong here
ARM is the deployment and management layer, but querying across subscriptions is not its primary function.
✗
Azure CLI
Why it's wrong here
Azure CLI can query resources but requires scripting and does not offer the advanced KQL-based querying of Resource Graph.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates confuse Azure Monitor’s log querying capabilities (also using KQL) with Azure Resource Graph’s resource metadata querying, but Azure Monitor cannot query resource properties like creation time across subscriptions—it only queries telemetry data.
Detailed technical explanation
How to think about this question
Azure Resource Graph uses KQL, which is the same query language used in Azure Data Explorer and Azure Monitor Logs, but optimized for resource metadata queries. Under the hood, it indexes resource properties across all subscriptions in a tenant, enabling queries like `where type =~ 'microsoft.compute/virtualmachines' and createdTime > ago(30d)` to return results in seconds. A real-world scenario is an enterprise with hundreds of subscriptions needing to audit all VMs for compliance, where Resource Graph’s cross-subscription query capability is essential.
KKey Concepts to Remember
Azure Resource Graph uses Kusto Query Language (KQL).
It queries resource properties and relationships across subscriptions.
Resource Graph is ideal for large-scale resource discovery and inventory.
It provides near real-time resource metadata updates.
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 uses Kusto Query Language (KQL).
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.
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 — Azure Resource Graph uses Kusto Query Language (KQL)..
What is the correct answer to this question?
The correct answer is: Azure Resource Graph — Azure Resource Graph is the correct service because it provides a powerful, Kusto Query Language (KQL)-based query engine that can efficiently explore and query Azure resources across multiple subscriptions, resource groups, and locations. It is specifically designed for resource discovery and inventory scenarios, such as finding all virtual machines created in the last 30 days, by filtering on properties like `createdTime`.
What should I do if I get this AZ-900 question wrong?
Review azure Resource Graph uses Kusto Query Language (KQL)., 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 uses Kusto Query Language (KQL).
About these practice questions
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These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.
Variation 1. A company wants to view a consolidated list of all Azure resources across multiple subscriptions and query them using Kusto Query Language (KQL). Which Azure tool should they use?
medium
✓ A.Azure Resource Graph
B.Azure Resource Manager
C.Azure Monitor
D.Azure Policy
Why A: Azure Resource Graph is the correct tool because it provides a powerful, queryable view of all Azure resources across multiple subscriptions using Kusto Query Language (KQL). It allows you to explore, discover, and analyze resource properties and relationships at scale, making it ideal for consolidated inventory and governance queries.
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Question Discussion
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