The answer is Azure Blob Storage SFTP support, which enables secure file transfer to the cloud by allowing on-premises systems to connect directly to Azure Blob Storage using the standardized SFTP or FTP protocols. This eliminates the need for a separate virtual machine or gateway, as the SFTP endpoint is built natively into the storage account, providing a simple and secure bridge between local environments and Azure resources. On the AZ-900 exam, this concept tests your understanding of how Azure integrates with existing industry-standard protocols for hybrid scenarios; a common trap is confusing this with Azure File Sync or a dedicated SFTP VM, but the key distinction is that Blob Storage SFTP support is a native feature of the storage service itself. For a quick memory tip, think “Blob + SFTP = direct cloud bridge” — no extra infrastructure required.
AZ-900 Describe Azure architecture and services Practice Question
This AZ-900 practice question tests your understanding of describe azure architecture and services. 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.
Which Azure service enables connecting Azure resources to on-premises systems using standardized industry protocols like SFTP or FTP?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Azure Blob Storage SFTP support
Azure Blob Storage SFTP support enables secure file transfers to and from Azure Blob Storage using the SFTP protocol, which is a standardized industry protocol for secure file transfer. This allows on-premises systems to connect directly to Azure storage resources without needing a separate virtual machine or gateway, making it the correct choice for connecting Azure resources to on-premises systems via SFTP or FTP.
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 Blob Storage supports SFTP protocol, enabling standard SFTP clients to transfer files to blob storage.
Related concept
Read the scenario before looking for a memorised answer.
✗
Azure ExpressRoute
Why it's wrong here
ExpressRoute provides private network connectivity; it doesn't specifically provide SFTP/FTP protocol support.
✗
Azure Data Factory
Why it's wrong here
Data Factory orchestrates data pipelines; SFTP support is a protocol capability of Azure Blob Storage.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse Azure VPNGateway or ExpressRoute as the solution for file transfer protocols, but those services provide network connectivity, not application-layer protocol support like SFTP or FTP.
Detailed technical explanation
How to think about this question
Azure Blob Storage SFTP support implements the SSHFile Transfer Protocol (SFTP) as defined in RFC 4253, running over SSH-2, and allows clients to use standard SFTP commands like 'put', 'get', 'ls', and 'rm' directly against a blob container. Under the hood, Azure maps the SFTP user to a managed identity or local user with specific permissions on the storage account, and each SFTP connection is authenticated via password or SSH public key, with data encrypted in transit using SSH encryption. A real-world scenario is a legacy on-premises application that only supports SFTP for file uploads; this service eliminates the need to deploy a jump box or VM just to receive those files.
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.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this AZ-900 question in full detail.
Describe Azure architecture and services — This question tests Describe Azure architecture and services — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Azure Blob Storage SFTP support — Azure Blob Storage SFTP support enables secure file transfers to and from Azure Blob Storage using the SFTP protocol, which is a standardized industry protocol for secure file transfer. This allows on-premises systems to connect directly to Azure storage resources without needing a separate virtual machine or gateway, making it the correct choice for connecting Azure resources to on-premises systems via SFTP or FTP.
What should I do if I get this AZ-900 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.
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Question Discussion
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