Question 886 of 1,031

Describe Azure architecture and services →mediumMultiple ChoiceObjective-mapped

Quick Answer

The answer is Azure Files, the fully managed SMB file share service for multi-VM access in Azure. This is the correct choice because Azure Files provides native SMB 3.0 protocol support, allowing both Windows and Linux virtual machines to mount the same file share simultaneously without any additional configuration or infrastructure management. By offloading storage administration to Microsoft, the company eliminates patching, scaling, and backup overhead, directly addressing the goal of minimizing management effort. On the AZ-900 exam, this question tests your understanding of Azure’s managed storage services versus self-managed options like Azure NetApp Files or running a file server on a VM—a common trap is confusing Azure Files with Azure Blob Storage, which does not support SMB mounts. For a quick memory tip, think “SMB = Shared Mounts with Azure Files,” and remember that if the scenario mentions SMB protocol and multiple VMs, Azure Files is the fully managed answer.

AZ-900 Describe Azure architecture and services Practice Question

This AZ-900 practice question tests your understanding of describe azure architecture and services. 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. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. 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 company plans to migrate their on-premises file server to Azure. The file server stores shared documents that are accessed by multiple Windows and Linux virtual machines using the SMB protocol. The company wants a fully managed cloud file share that can be mounted simultaneously by multiple VMs, and they want to minimize management overhead. Which Azure service should they use?

Clue words in this question

Noticing these words before you look at the options changes how you read each choice.

Clue: "minimum / minimize"
Why it matters: Asks for the least resource use — fewest addresses, smallest subnet, lowest overhead. Eliminate over-provisioned options even if they would technically work.

Question 1mediummultiple choice

Full question →

A
Azure Blob Storage
Why wrong: Azure Blob Storage is designed for unstructured object data and does not natively support the SMB protocol. While it can be accessed via REST APIs, it cannot be directly mounted as an SMB file share by multiple VMs without additional services like Azure Files or third-party gateways.
B
Azure Files
Azure Files offers fully managed cloud file shares that use the industry-standard SMB protocol. It supports both Windows and Linux VMs, allowing multiple VMs to mount and access the same share concurrently with minimal management overhead, making it the correct service for migrating an on-premises file server.
C
Azure Disks
Why wrong: Azure Disks provide persistent block storage for Azure virtual machines, but each disk can only be attached to a single VM at a time. They do not support simultaneous mounting by multiple VMs, so they are unsuitable for a shared file server scenario.
D
Azure NetApp Files
Why wrong: Azure NetApp Files provides enterprise-grade, high-performance file shares that support SMB and NFS. However, it is more complex and expensive than Azure Files, and for a standard file server migration with shared access, Azure Files offers a simpler and more cost-effective managed solution.

Full breakdown with real-world context →

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 Files

Azure Files provides fully managed SMB file shares that can be mounted simultaneously by multiple Windows and Linux VMs. It uses the SMB 3.0 protocol, supports both Windows and Linux clients, and eliminates the need to manage the underlying storage infrastructure, minimizing management overhead.

Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.

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 Blob Storage
Why it's wrong here
Azure Blob Storage is designed for unstructured object data and does not natively support the SMB protocol. While it can be accessed via REST APIs, it cannot be directly mounted as an SMB file share by multiple VMs without additional services like Azure Files or third-party gateways.
✓
Azure Files
Why this is correct
Azure Files offers fully managed cloud file shares that use the industry-standard SMB protocol. It supports both Windows and Linux VMs, allowing multiple VMs to mount and access the same share concurrently with minimal management overhead, making it the correct service for migrating an on-premises file server.
Clue confirmation
The clue word "minimum / minimize" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
✗
Azure Disks
Why it's wrong here
Azure Disks provide persistent block storage for Azure virtual machines, but each disk can only be attached to a single VM at a time. They do not support simultaneous mounting by multiple VMs, so they are unsuitable for a shared file server scenario.
✗
Azure NetApp Files
Why it's wrong here
Azure NetApp Files provides enterprise-grade, high-performance file shares that support SMB and NFS. However, it is more complex and expensive than Azure Files, and for a standard file server migration with shared access, Azure Files offers a simpler and more cost-effective managed solution.

Common exam traps

Common exam trap: answer the scenario, not the keyword

The trap here is that candidates often confuse Azure Files with Azure Blob Storage or Azure Disks, not realizing that Azure Files is the only service that provides a fully managed, multi-VM accessible SMB file share without requiring additional configuration or third-party tools.

Trap categories for this question

Scenario analysis trap
Azure Disks provide persistent block storage for Azure virtual machines, but each disk can only be attached to a single VM at a time. They do not support simultaneous mounting by multiple VMs, so they are unsuitable for a shared file server scenario.

Detailed technical explanation

How to think about this question

Azure Files uses the SMB 3.0 protocol with encryption in transit, which is required for Linux clients to mount the share securely. The service provides a fully managed file share that can be accessed via the standard SMB protocol (port 445) or via REST APIs, and it supports Azure Active Directory integration for identity-based access control. In a real-world scenario, if the company needs to migrate existing SMB-based file shares without re-architecting access patterns, Azure Files is the direct lift-and-shift target, whereas Azure NetApp Files would be chosen for ultra-low latency or high-throughput workloads requiring advanced performance tiers.

KKey Concepts to Remember

Read the scenario before looking for a memorised answer.
Find the constraint that changes the correct option.
Eliminate answers that are true in general but not in this case.

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

Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.

Real-world example

How this comes up in practice

A media company stores terabytes of video archives that are accessed once a year for audit purposes. Moving these objects to a cold storage tier (Azure Archive, S3 Glacier, or Google Nearline) costs a fraction of hot storage. Questions like this test whether you understand storage tiers, access frequency tradeoffs, and retrieval latency requirements.

What to study next

Got this wrong? Here's your next step.

Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.

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FAQ

Questions learners often ask

What does this AZ-900 question test?

Describe Azure architecture and services — This question tests Describe Azure architecture and services — Read the scenario before looking for a memorised answer..

What is the correct answer to this question?

The correct answer is: Azure Files — Azure Files provides fully managed SMB file shares that can be mounted simultaneously by multiple Windows and Linux VMs. It uses the SMB 3.0 protocol, supports both Windows and Linux clients, and eliminates the need to manage the underlying storage infrastructure, minimizing management overhead.

What should I do if I get this AZ-900 question wrong?

Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.

Are there clue words in this question I should notice?

Yes — watch for: "minimum / minimize". Asks for the least resource use — fewest addresses, smallest subnet, lowest overhead. Eliminate over-provisioned options even if they would technically work.

What is the key concept behind this question?

Read the scenario before looking for a memorised answer.

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Last reviewed: Jun 11, 2026

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