Quick Answer
The answer is Azure File Sync. This is the correct choice because it enables a Windows Server in Branch01 to maintain a local cache of the Azure file share, allowing users to access frequently used files over SMB from the local server instead of downloading them repeatedly across the WAN. Azure File Sync uses a cloud tiering feature to keep only the most recently accessed files locally, while all files remain centrally stored in Azure Files, dramatically reducing latency and bandwidth consumption for branch office users. On the AZ-104 exam, this scenario tests your understanding of hybrid file storage solutions and the distinction between Azure File Sync and direct SMB access to Azure Files—a common trap is confusing it with Azure Files’ SMB protocol alone, which does not provide local caching. Remember the memory tip: “Sync for the cache, SMB for the share”—Azure File Sync handles the local caching, while SMB is just the access protocol.
This AZ-104 practice question tests your understanding of implement and manage storage. 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.
Users in Branch01 access an Azure file share over SMB. Performance is poor because frequently used files are downloaded repeatedly across the WAN. You need to keep a local cache on a Windows Server in Branch01 while keeping Azure Files as the central file share. What should you deploy?
Azure File Sync
Azure File Sync provides a local cache on Windows Server while keeping Azure Files central.
Blob versioning
Why wrong: Blob versioning is unrelated to SMB file-share caching.
Share snapshots
Why wrong: Snapshots provide recovery points, not local branch caching.
A private endpoint
Why wrong: A private endpoint can improve security posture but does not create a branch office cache.
Answer choices
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
Azure File Sync is the correct solution because it enables caching of Azure file shares on a Windows Server at the branch location, providing local access to frequently used files while keeping Azure Files as the central authoritative store. It uses a sync engine to maintain a local cache and leverages the SMB protocol for access, reducing WAN latency by serving files from the local server.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
Azure File Sync
Why this is correct
Azure File Sync provides a local cache on Windows Server while keeping Azure Files central.
Related concept
Read the scenario before looking for a memorised answer.
Blob versioning
Why it's wrong here
Blob versioning is unrelated to SMB file-share caching.
Share snapshots
Why it's wrong here
Snapshots provide recovery points, not local branch caching.
A private endpoint
Why it's wrong here
A private endpoint can improve security posture but does not create a branch office cache.
Common exam traps
The trap here is that candidates often confuse Azure File Sync with simply mounting an Azure file share via SMB or using a private endpoint, not realizing that File Sync specifically provides a local caching mechanism on a Windows Server to solve WAN latency issues.
Detailed technical explanation
Azure File Sync uses a cloud tiering policy to keep only frequently accessed files locally on the Windows Server, while less-used files are tiered to the cloud, saving local storage. The sync process uses the FileSync agent and communicates over HTTPS, not SMB, to synchronize changes between the local server and the Azure file share. In a real-world scenario, this is ideal for branch offices with limited WAN bandwidth, as it ensures users have low-latency access to hot files without requiring full replication of the entire share.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
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
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FAQ
Implement and Manage Storage — This question tests Implement and Manage Storage — Read the scenario before looking for a memorised answer..
The correct answer is: Azure File Sync — Azure File Sync is the correct solution because it enables caching of Azure file shares on a Windows Server at the branch location, providing local access to frequently used files while keeping Azure Files as the central authoritative store. It uses a sync engine to maintain a local cache and leverages the SMB protocol for access, reducing WAN latency by serving files from the local server.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 11, 2026
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.
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