AZ-104 Implement and Manage Storage Practice Question
A company has 15 branch Windows file servers that must show the same shared drive content. Users should keep working during short WAN outages, and local servers should cache frequently used files. Which Azure feature should you deploy?
⚠ Common exam trap
Many candidates confuse Azure Blob Storage with Azure Files, assuming blob storage can serve SMB file shares directly, but Azure Blob Storage does not support SMB protocol natively without Azure Files or third-party tools.
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 on-premises file servers with an Azure file share and supports cloud tiering.
Azure File Sync is the correct choice because it synchronizes on-premises Windows file servers with an Azure file share, enabling multi-site file server consolidation. It supports cloud tiering, which caches frequently accessed files locally on each branch server while freeing up space by tiering cold data to the cloud. This ensures users can continue working during short WAN outages, as local caches provide access to synced files even when connectivity is lost.
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 with lifecycle rules, because it can present files to multiple branches.
Why it's wrong here
Azure Blob Storage is object storage that supports data lifecycle management to move blobs between hot, cool, and archive tiers based on last-modified dates, but it cannot present a distributed SMB namespace to Windows file servers. Lifecycle rules do not push content to branch servers or maintain file-level locks and ACLs needed for shared Windows folders. Attempting to use Blob storage for this scenario would require building a custom sync layer, whereas Azure Files is the managed SMB offering in Azure.
When this WOULD be correct
A company needs to store large amounts of unstructured data (e.g., backups, logs, media) and automatically move it to cooler tiers (e.g., cool or archive) based on age to optimize costs. Lifecycle rules manage tier transitions automatically.
- ✓
Azure File Sync, because it synchronizes on-premises file servers with an Azure file share and supports cloud tiering.
Why this is correct
Azure File Sync is designed for this exact scenario. It keeps an Azure file share as the central source of truth while synchronizing branch servers and optionally tiering infrequently used files to the cloud. That gives users local performance, file-share consistency, and better resilience during temporary WAN disruptions. It is the best fit when multiple Windows servers need synchronized file content.
- ✗
A private endpoint to Blob Storage, because it provides local caching for SMB file shares.
Why it's wrong here
A private endpoint provides a private IP address from your virtual network to access Azure Blob Storage, but it does not create local caches or synchronize file content to branch Windows servers. It only manages network connectivity and allows controlled ingress/egress; it cannot replicate an SMB file share across locations. Without a sync engine like Azure File Sync, each branch server would still need its own independent storage and content management.
When this WOULD be correct
A question asks: 'You need to ensure that an Azure Storage account is accessible only from a specific virtual network, without exposing it to the public internet. Which Azure feature should you deploy?' In this scenario, a private endpoint is the correct answer.
- ✗
A managed disk shared across the branch servers, because it gives the same content to all locations.
Why it's wrong here
A managed disk is a block-level storage device attached to a single Azure VM, and even Azure Shared Disks only support simultaneous attachment by cluster VMs within the same availability zone. You cannot mount a managed disk to on-premises Windows file servers in different branch offices, nor does it provide replication or conflict-resolution logic. It is infrastructure for VM storage, not a cross-site file-synchronization fabric, so it fails to meet the requirement for shared content across 15 branches.
When this WOULD be correct
You need to provide a high-performance, low-latency shared block storage for a single virtual machine or a clustered application (e.g., SQL Server FCI) that requires SCSI-3 Persistent Reservations for shared access.
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 on-premises file servers with an Azure file share and supports cloud tiering.Correct answer▾
Why this is correct
Azure File Sync is designed for this exact scenario. It keeps an Azure file share as the central source of truth while synchronizing branch servers and optionally tiering infrequently used files to the cloud. That gives users local performance, file-share consistency, and better resilience during temporary WAN disruptions. It is the best fit when multiple Windows servers need synchronized file content.
✗Azure Blob Storage with lifecycle rules, because it can present files to multiple branches.Wrong answer — click to see why▾
Why this is wrong here
Azure Blob Storage with lifecycle rules does not provide file-level synchronization or caching for on-premises file servers; it is object storage for unstructured data, not a solution for keeping multiple Windows file servers in sync with local caching.
★ When this WOULD be the correct answer
A company needs to store large amounts of unstructured data (e.g., backups, logs, media) and automatically move it to cooler tiers (e.g., cool or archive) based on age to optimize costs. Lifecycle rules manage tier transitions automatically.
Why candidates choose this
Candidates may think Blob Storage can serve files to multiple branches because it is accessible from anywhere, but they overlook that it lacks the file-level sync and caching capabilities required for on-premises file servers.
✗A private endpoint to Blob Storage, because it provides local caching for SMB file shares.Wrong answer — click to see why▾
Why this is wrong here
A private endpoint to Blob Storage does not provide local caching for SMB file shares; it only secures network traffic to Azure storage. The question requires caching on local servers, which Azure File Sync's cloud tiering provides, not a private endpoint.
★ When this WOULD be the correct answer
A question asks: 'You need to ensure that an Azure Storage account is accessible only from a specific virtual network, without exposing it to the public internet. Which Azure feature should you deploy?' In this scenario, a private endpoint is the correct answer.
Why candidates choose this
Candidates may confuse private endpoints with providing local caching or SMB access, or think that securing connectivity inherently improves performance and availability for file shares.
✗A managed disk shared across the branch servers, because it gives the same content to all locations.Wrong answer — click to see why▾
Why this is wrong here
A managed disk cannot be simultaneously attached to multiple servers in read-write mode; it supports only one writer at a time, so it cannot provide the same shared content across 15 branch servers.
★ When this WOULD be the correct answer
You need to provide a high-performance, low-latency shared block storage for a single virtual machine or a clustered application (e.g., SQL Server FCI) that requires SCSI-3 Persistent Reservations for shared access.
Why candidates choose this
Candidates may think a managed disk can be shared like a network drive, overlooking Azure's single-attach limitation for standard managed disks.
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?”
Go deeper
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.