Question 1mediummultiple choice
Full question →mediummultiple choiceObjective-mapped
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?
Answer choices
Why each option matters
Good practice is not just finding the correct option. The wrong answers often show the exact trap the exam wants you to fall into.
A
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Azure Disks
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.
B
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Azure Blob Storage
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.
C
Best answer
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.
D
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Azure NetApp Files
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 trap
Common exam trap: NAT rules depend on direction and matching traffic
NAT is not only about the public address. The inside/outside interface roles and the ACL or rule that matches traffic are just as important.
Technical deep dive
How to think about this question
NAT questions usually test address translation, overload/PAT behaviour, static mappings and whether the right traffic is being translated. Read the interface direction and address terms carefully.
KKey Concepts to Remember
- Static NAT maps one inside address to one outside address.
- PAT allows many inside hosts to share one public address using ports.
- Inside local and inside global describe the private and translated addresses.
- NAT ACLs identify traffic for translation, not always security filtering.
TExam Day Tips
- Identify inside and outside interfaces first.
- Check whether the scenario needs static NAT, dynamic NAT or PAT.
- Do not confuse NAT matching ACLs with normal packet-filtering intent.
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More questions from this exam
Keep practising from the same exam bank, or move into a focused topic page if this question exposed a weak area.
Question 1
A developer is building a serverless application that requires integration with an on-premises SQL Server database for real-time data processing. The on-premises network is connected to Azure via a site-to-site VPN. Which Azure service would allow the function to securely access the on-premises database without exposing it to the public internet?
Question 2
A solutions architect is designing a storage solution for a large media company. The company needs to store video files that are accessed infrequently but must be retained for several years for compliance. Which two Azure storage options meet these requirements? (Select two.)
Question 3
A company deploys a multi-tier application using Azure virtual machines. The web tier VMs must be evenly distributed across two distinct data centers within an Azure region to avoid a single point of failure from an infrastructure outage. Which Azure construct should they use to meet this requirement?
Question 4
A company wants to enforce a set of security policies across all their Azure subscriptions. They have created several individual policy definitions. Which Azure construct should they use to group these policies together and assign them as a single package?
Question 5
A company deploys a line-of-business application on an Azure virtual machine. The IT team wants to ensure the application remains secure. According to the shared responsibility model, which of the following security tasks is the sole responsibility of the customer (the company)?
Question 6
A company develops a web API that runs on Azure App Service. The development team wants to deploy a new version of the API to a staging environment, run integration tests against it, and then gradually shift production traffic to the new version. If any issues are detected, they want to immediately roll back to the previous version without redeploying. Which Azure App Service feature should the team use to meet these requirements?
FAQ
Questions learners often ask
What does this AZ-900 question test?
Static NAT maps one inside address to one outside address.
What is the correct answer to this question?
The correct answer is: Azure Files — Azure Files provides fully managed file shares that use the SMB protocol and can be mounted by multiple virtual machines simultaneously, making it the ideal choice for migrating an on-premises file server that requires shared access. Azure Blob Storage is an object storage solution that does not natively support SMB, requiring additional configuration or third-party tools. Azure Disks provide block-level storage attached to a single VM and cannot be shared across multiple VMs without clustering. Azure NetApp Files is a high-performance file service but is more complex and costly for a simple shared file share scenario.
What should I do if I get this AZ-900 question wrong?
Then try more questions from the same exam bank and focus on understanding why the wrong options are tempting.
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