AZ-500 Secure compute, storage, and databases Practice Question
This AZ-500 practice question tests your understanding of secure compute, storage, and databases. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. 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.
Your company uses Azure Files shares for user home directories. Security policy requires that all data be encrypted at rest and in transit. You have enabled encryption at rest using Azure Storage Service Encryption (SSE). For encryption in transit, you require SMB clients to use SMB 3.0 or later with encryption. You configure the storage account to require secure transfer. A user reports that they cannot mount the file share from a Windows 10 machine that is not domain-joined. The user can mount other file shares without issues. What is the most likely reason for the failure?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "most likely"
Why it matters: Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The client machine does not support SMB 3.0 encryption, which is required when secure transfer is enabled.
Option B is correct: When secure transfer is required, SMB 3.0 with encryption is mandatory. If the client does not support SMB encryption (e.g., due to older OS or misconfiguration), the mount will fail. Option A: Azure Files supports SMB mount from non-domain-joined machines. Option C: Azure Files supports both SMB protocols. Option D: DNS resolution is not the issue if they can mount other shares.
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.
✗
The storage account firewall is blocking the client's public IP address.
Why it's wrong here
If the firewall blocked, the user would not be able to mount any shares from that account.
✗
The user's machine is not domain-joined, so it cannot authenticate to Azure Files.
Why it's wrong here
Azure Files supports authentication with storage account key from any machine.
✗
Azure Files only supports SMB 2.1, and the client is trying to use SMB 3.0.
Why it's wrong here
Azure Files supports SMB 3.0.
✓
The client machine does not support SMB 3.0 encryption, which is required when secure transfer is enabled.
Why this is correct
Secure transfer enforces encryption; the client must support it.
Clue confirmation
The clue word "most likely" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Detailed technical explanation
How to think about this question
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
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.
Use explanations to understand the rule behind the answer.
TExam Day Tips
→Underline the problem statement mentally.
→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-500 question in full detail.
Identify which AZ-500 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
Secure compute, storage, and databases — This question tests Secure compute, storage, and databases — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: The client machine does not support SMB 3.0 encryption, which is required when secure transfer is enabled. — Option B is correct: When secure transfer is required, SMB 3.0 with encryption is mandatory. If the client does not support SMB encryption (e.g., due to older OS or misconfiguration), the mount will fail. Option A: Azure Files supports SMB mount from non-domain-joined machines. Option C: Azure Files supports both SMB protocols. Option D: DNS resolution is not the issue if they can mount other shares.
What should I do if I get this AZ-500 question wrong?
Identify which AZ-500 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
Are there clue words in this question I should notice?
Yes — watch for: "most likely". Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
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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