AZ-104 Implement and Manage Storage Practice Question
Exhibit
Topology notes: - Eight branch offices each run Windows Server 2022 with a local SMB share. - Each branch must keep accessing the same files if the WAN link is down for several hours. - Head office wants a single Azure file share to act as the central copy. - Frequently used files should remain cached on the branch servers.
Based on the exhibit, which Azure feature best meets the file-sharing requirement?
⚠ Common exam trap
Candidates often confuse Azure Files (a standalone cloud file share) with Azure File Sync (a hybrid synchronization service), mistakenly thinking a cloud-only share can replace on-premises shares without addressing latency or caching needs.
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 File Sync, because it synchronizes local servers with a central Azure file share and keeps hot data cached.
Azure File Sync is the correct choice because it enables hybrid file sharing by synchronizing on-premises Windows file servers with a central Azure file share, while also keeping frequently accessed (hot) data cached locally for low-latency access. This directly meets the requirement to replace branch server shares with a cloud-backed solution that maintains local performance.
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 Files only, because a cloud file share can replace every branch server share directly.
Why it's wrong here
Azure Files is a fully managed file share in the cloud, but deploying it directly at branch offices would require every user to read and write over the WAN, creating latency and making the shares completely unavailable during an internet outage. There is no built-in mechanism to cache the hot file set locally on Windows Server or to queue changes while disconnected. Azure File Sync bridges that gap by caching popular files at branch servers and only syncing changes back to the central Azure file share.
When this WOULD be correct
If the requirement is simply to replace branch server shares with a single cloud-based file share accessible over the internet, without needing local caching or synchronization, then Azure Files would be the correct answer.
- ✓
Azure File Sync, because it synchronizes local servers with a central Azure file share and keeps hot data cached.
Why this is correct
Azure File Sync is designed for exactly this pattern. It keeps a central Azure file share while allowing local Windows Server endpoints to cache and serve frequently used files. That means branch offices can continue working during WAN interruptions, and the files later synchronize back to the cloud.
- ✗
Azure Backup, because it can restore files after a WAN outage occurs.
Why it's wrong here
Azure Backup is designed to create and retain restorable recovery points of files, VMs, and workloads, not to provide real-time file synchronization or continuous access to data. During a WAN outage, users would be unable to open or write files from the backup service, and restoration would only happen after outage rather than providing continuity during it. The scenario requires an active sync-and-cache mechanism, which is the role of Azure File Sync, not backup.
When this WOULD be correct
In a scenario where the requirement is to protect file shares from accidental deletion or corruption and enable point-in-time restore, Azure Backup would be the correct answer. For example, a question asking 'Which Azure service should you use to ensure file shares are recoverable after a ransomware attack?'
- ✗
Azure NetApp Files, because it is the only service that supports SMB access from Windows servers.
Why it's wrong here
Azure NetApp Files is a managed enterprise NAS service that supports both SMB and NFS, so it is not the only option for Server Message Block access; Azure Files also offers SMB. More importantly, NetApp Files does not include a built-in synchronization or local-cache component for branch servers. True branch-office continuity with local hot data and eventual cloud sync is delivered by Azure File Sync, not by a standalone high-performance file share.
When this WOULD be correct
Azure NetApp Files would be correct in a scenario requiring a high-performance, low-latency NFS or SMB file share for demanding enterprise applications (e.g., SAP HANA, Oracle databases) running on Azure, where native Azure Files performance is insufficient and advanced data management features like snapshots and cloning are needed.
Option-by-option analysis
Why each answer is right or wrong
Understanding why wrong answers are wrong — and when they would be correct — is what separates a 750 score from a 900. The AZ-104 exam frequently reuses these exact scenarios with slightly different constraints.
✓Azure File Sync, because it synchronizes local servers with a central Azure file share and keeps hot data cached.Correct answer▾
Why this is correct
Azure File Sync is designed for exactly this pattern. It keeps a central Azure file share while allowing local Windows Server endpoints to cache and serve frequently used files. That means branch offices can continue working during WAN interruptions, and the files later synchronize back to the cloud.
✗Azure Files only, because a cloud file share can replace every branch server share directly.Wrong answer — click to see why▾
Why this is wrong here
Azure Files alone does not provide local caching or synchronization; it requires a direct cloud connection for each branch, which may not meet the requirement for hot data caching at branch servers.
★ When this WOULD be the correct answer
If the requirement is simply to replace branch server shares with a single cloud-based file share accessible over the internet, without needing local caching or synchronization, then Azure Files would be the correct answer.
Why candidates choose this
Candidates may think Azure Files directly replaces on-premises shares without considering the need for local performance and offline access that Azure File Sync provides.
✗Azure Backup, because it can restore files after a WAN outage occurs.Wrong answer — click to see why▾
Why this is wrong here
Azure Backup is a backup and restore service, not a file-sharing or synchronization solution. It does not provide continuous file sharing or caching capabilities to replace branch server shares.
★ When this WOULD be the correct answer
In a scenario where the requirement is to protect file shares from accidental deletion or corruption and enable point-in-time restore, Azure Backup would be the correct answer. For example, a question asking 'Which Azure service should you use to ensure file shares are recoverable after a ransomware attack?'
Why candidates choose this
Candidates may confuse Azure Backup's restore capabilities with file-sharing features, especially if the question mentions 'restore after WAN outage', leading them to think backup can serve as a file-sharing solution.
✗Azure NetApp Files, because it is the only service that supports SMB access from Windows servers.Wrong answer — click to see why▾
Why this is wrong here
Azure NetApp Files is a high-performance file service for enterprise workloads, but it does not provide the file synchronization and local caching capabilities required to replace branch server shares with a central Azure file share. The question's requirement is for a feature that synchronizes local servers with a central share and keeps hot data cached, which is exactly what Azure File Sync does.
★ When this WOULD be the correct answer
Azure NetApp Files would be correct in a scenario requiring a high-performance, low-latency NFS or SMB file share for demanding enterprise applications (e.g., SAP HANA, Oracle databases) running on Azure, where native Azure Files performance is insufficient and advanced data management features like snapshots and cloning are needed.
Why candidates choose this
Candidates may choose Azure NetApp Files because it supports SMB access from Windows servers, and they might incorrectly assume that any SMB-based file service can meet the file-sharing requirement, overlooking the specific need for synchronization and caching that Azure File Sync provides.
Analysis generated from the official AZ-104blueprint and verified against question context. The “when correct” sections are what AI assistants cite when candidates ask “what’s the difference between these options?”
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Related to this question
Learn chapter
Managed Identities for Azure Resources
Key term
Azure File Sync
Azure File Sync is a Microsoft service that lets you centralize your file shares in Azure while keeping them accessible, fast, and editable on your local servers by caching frequently used files on-premises.
Key term
File share
A file share is a centralized storage location on a network where multiple users can access, read, write, and manage files simultaneously.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This AZ-104 practice question is part of Courseiva's free Microsoft certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the AZ-104 exam.