This is the free Microsoft AZ-900 practice question bank —
220 of 427 total questions, each with a full explanation, free to
read with no signup required. Updated 2026-08-05.
Every answer is verified against official Microsoft documentation —
see our methodology.
Question 1
HOTSPOT
-
Select the answer that correctly completes the sentence.
Show Answer
Correct Answer: availability
Explanation: An SLA commonly specifies availability as a percentage of uptime over a defined period, such as a year.
Question 2
HOTSPOT -
Select the answer that correctly completes the sentence.
Show Answer
Correct Answer: resource tags
Explanation: Azure resource tags let you logically organize resources for reporting, cost allocation by department, and budget tracking.
Question 3
What can you use to make recommendations that will reduce Azure costs?
A. Azure Advisor
B. Log Analytics
C. Azure Service Health
D. the Azure pricing calculator
Show Answer
Correct Answer: A
Explanation: Azure Advisor analyzes your Azure resources and usage and provides personalized recommendations, including cost optimization recommendations to help reduce Azure spending. Log Analytics is for monitoring and querying logs, Azure Service Health reports service issues and maintenance, and the Azure pricing calculator estimates costs rather than recommending optimizations.
Question 4
DRAG DROP
-
Match the cloud service to the appropriate description.
To answer, drag the appropriate cloud service from the column on the left to its description on the right. Each service may be used once, more than once, or not at all.
NOTE: Each correct match is worth one point.
Show Answer
Correct Answer: Provides the most control of a cloud environment. → Infrastructure as a Service (IaaS)
Provides the most control of a database design without having to maintain the operating system. → Platform as a Service (PaaS)
Used to host Azure virtual machines. → Infrastructure as a Service (IaaS)
Explanation: IaaS gives customers control over virtual machines, networking, storage, and the operating system. PaaS manages the underlying OS while allowing control over application and database design. Azure virtual machines are an IaaS offering.
Question 5
HOTSPOT
-
Select the answer that correctly completes the sentence.
Show Answer
Correct Answer: the cool access tier of Azure Blob Storage
Explanation: Azure Blob Storage cool tier has a 30-day minimum retention period. Deleting or moving blobs before 30 days incurs an early deletion charge. The hot tier has no such minimum, and Azure SQL Database and Azure Cosmos DB do not use this 30-day early deletion fee model.
Question 6
DRAG DROP
-
Match the authentication method to the appropriate level of security.
To answer, drag the appropriate authentication method from the column on the left to its level of security on the right.
NOTE: Each correct match is worth one point.
Explanation: Password authentication is the least secure but easiest to use. MFA increases security by requiring multiple factors but is less convenient. Passwordless authentication (for example, FIDO2/passkeys or biometrics) provides strong security while also improving user convenience by eliminating passwords.
Question 7
How many data copies are stored in gee-zone-redundant storage (GZRS)?
A. 2
B. 3
C. 6
D. 12
Show Answer
Correct Answer: C
Explanation: Geo-zone-redundant storage (GZRS) stores six copies of data: three synchronous copies across availability zones in the primary region (like ZRS), plus asynchronous replication to a secondary geographic region where three additional copies are maintained. Total: 6 copies.
Question 8
HOTSPOT
-
For each of the following statements, select Yes if the statement is true. Otherwise, select No.
NOTE: Each correct selection is worth one point.
Show Answer
Correct Answer: Yes
Yes
Yes
Explanation: A ReadOnly lock prevents updates and deletions. A CanNotDelete (delete) lock still allows modifications but blocks deletion. Locks applied at a parent scope, such as a resource group, are inherited by child resources, with the most restrictive lock taking precedence.
Question 9
DRAG DROP
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In which order should you arrange the Azure resources from the highest parent object (top) to the lowest child object? To answer, move all resources from the list of resources to the answer area and arrange them in the correct order.
Show Answer
Correct Answer: Management group
Azure subscription
Resource group
Azure virtual machine
Explanation: Azure resources are organized hierarchically: management groups contain subscriptions, subscriptions contain resource groups, and resource groups contain resources such as virtual machines.
Question 10
HOTSPOT
-
Select the answer that correctly completes the sentence.
Show Answer
Correct Answer: Azure Advisor
Explanation: Azure Advisor analyzes Azure deployments and provides recommendations, including cost optimization and savings opportunities.
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