- A
Azure File Sync
Azure File Sync is designed to synchronize on-premises Windows file servers with Azure file shares.
- B
Blob versioning
Why wrong: Blob versioning applies to blobs, not synchronization of Windows file shares.
- C
Azure NetApp Files
Why wrong: Azure NetApp Files is a different managed file storage offering and does not synchronize an existing Windows file server in this way.
- D
Storage account failover
Why wrong: Failover changes the active region for a storage account and does not synchronize on-premises files.
Question 655 of 1,170
AZ-104 Implement and Manage Storage Practice Question
This AZ-104 practice question tests your understanding of implement and manage storage. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. 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.
You need to synchronize an on-premises Windows file server with an Azure file share so that branch offices can continue using the local server while keeping cloud-based copies of the files. Which service should you configure?
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
Azure File Sync is the correct service because it enables you to centralize your on-premises file shares in Azure Files while maintaining local access to the data. It uses a sync agent installed on the Windows file server to replicate files to an Azure file share, allowing branch offices to continue using the local server with cloud-based copies for backup, disaster recovery, or multi-site access. This directly meets the requirement of keeping the on-premises server operational while maintaining cloud copies.
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 File Sync
Why this is correct
Azure File Sync is designed to synchronize on-premises Windows file servers with Azure file shares.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Blob versioning
Why it's wrong here
Blob versioning applies to blobs, not synchronization of Windows file shares.
When this WOULD be correct
Blob versioning would be correct if the question asked: 'You need to protect against accidental deletion or overwrite of blobs in an Azure Storage account. Which feature should you enable?'
- ✗
Azure NetApp Files
Why it's wrong here
Azure NetApp Files is a different managed file storage offering and does not synchronize an existing Windows file server in this way.
When this WOULD be correct
A question that asks for a high-performance, low-latency file share for a latency-sensitive application (e.g., SAP HANA or Oracle database) running in Azure, where the solution must support NFS or SMB protocols and provide advanced data management features like snapshots and cloning. In that case, Azure NetApp Files would be the correct choice.
- ✗
Storage account failover
Why it's wrong here
Failover changes the active region for a storage account and does not synchronize on-premises files.
When this WOULD be correct
You need to ensure high availability for a storage account by automatically failing over to a paired region during a regional outage. Which feature should you enable?
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 SyncCorrect answer▾
Why this is correct
Azure File Sync is designed to synchronize on-premises Windows file servers with Azure file shares.
✗Blob versioningWrong answer — click to see why▾
Why this is wrong here
Blob versioning preserves previous versions of blobs in Azure Storage, but it does not synchronize data between on-premises servers and Azure. It lacks the two-way sync, tiering, and cloud backup capabilities required for hybrid file server scenarios.
★ When this WOULD be the correct answer
Blob versioning would be correct if the question asked: 'You need to protect against accidental deletion or overwrite of blobs in an Azure Storage account. Which feature should you enable?'
Why candidates choose this
Candidates may confuse blob versioning with file synchronization because both involve maintaining multiple copies of data, but versioning is a data protection feature, not a sync solution.
✗Azure NetApp FilesWrong answer — click to see why▾
Why this is wrong here
Azure NetApp Files provides high-performance NFS/SMB file shares for enterprise workloads, but it does not offer cloud sync or tiering with on-premises servers. The question requires bidirectional synchronization with an on-premises Windows file server, which is a feature of Azure File Sync, not Azure NetApp Files.
★ When this WOULD be the correct answer
A question that asks for a high-performance, low-latency file share for a latency-sensitive application (e.g., SAP HANA or Oracle database) running in Azure, where the solution must support NFS or SMB protocols and provide advanced data management features like snapshots and cloning. In that case, Azure NetApp Files would be the correct choice.
Why candidates choose this
Candidates may confuse Azure NetApp Files with Azure Files, assuming both support sync capabilities. The name 'NetApp' suggests enterprise file services, leading them to believe it can handle sync scenarios, but it lacks the sync engine that Azure File Sync provides.
✗Storage account failoverWrong answer — click to see why▾
Why this is wrong here
Storage account failover is a disaster recovery feature for Azure Storage that switches from the primary to a secondary region in case of an outage. It does not synchronize on-premises file servers with Azure file shares.
★ When this WOULD be the correct answer
You need to ensure high availability for a storage account by automatically failing over to a paired region during a regional outage. Which feature should you enable?
Why candidates choose this
Candidates may confuse failover with synchronization, thinking it keeps data in sync between locations, but failover is for redundancy, not continuous sync.
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?”
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse Azure File Sync with Azure NetApp Files or Blob storage features, mistakenly thinking that any cloud storage service can synchronize on-premises data, but only Azure File Sync provides bidirectional sync with an on-premises Windows file server.
Detailed technical explanation
How to think about this question
Azure File Sync uses the File Sync agent to register the on-premises Windows Server with a Storage Sync Service, which then manages sync groups and cloud endpoints (Azure file shares) and server endpoints (local paths). The sync engine uses a change-tracking mechanism based on NTFS USN journaling to detect file changes and replicate them incrementally, supporting multi-site sync with conflict resolution via 'last writer wins'. A real-world scenario is a branch office with limited bandwidth where Azure File Sync can be configured with cloud tiering to keep only frequently accessed files locally, freeing up on-premises storage while all files remain accessible via the cloud.
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.
Visual reference
What to study next
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FAQ
Questions learners often ask
What does this AZ-104 question test?
Implement and Manage Storage — This question tests Implement and Manage Storage — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Azure File Sync — Azure File Sync is the correct service because it enables you to centralize your on-premises file shares in Azure Files while maintaining local access to the data. It uses a sync agent installed on the Windows file server to replicate files to an Azure file share, allowing branch offices to continue using the local server with cloud-based copies for backup, disaster recovery, or multi-site access. This directly meets the requirement of keeping the on-premises server operational while maintaining cloud copies.
What should I do if I get this AZ-104 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
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Last reviewed: Jun 11, 2026
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