The answer is shared access keys and Microsoft Entra ID authentication. These are the two valid methods to authenticate to Azure Storage from on-premises servers because they provide direct, supported identity verification mechanisms: shared access keys grant full account-level access via a secret key, while Entra ID authentication enables role-based access control using managed identities or service principals without exposing secrets. On the AZ-500 exam, this question tests your understanding of Azure Storage security controls and often appears as a trap where candidates confuse SAS tokens—which are derived from shared access keys and are a delegated access method, not a primary authentication method—with the core authentication options themselves. A common memory tip is to remember that Entra ID and keys are the two pillars of storage authentication, while SAS tokens, X.509 certificates, and Azure CLI are either secondary tools or unsupported for this specific scenario.
AZ-500 Secure compute, storage, and databases Practice Question
This AZ-500 practice question tests your understanding of secure compute, storage, and databases. 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 two options are valid methods to authenticate to Azure Storage from on-premises servers?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Microsoft Entra ID authentication.
Correct: B and D. Shared access keys and Entra ID authentication are both supported. Option A (X.509 certificates) is not supported for storage. Option C (SAS tokens) is a form of shared access, but not a primary authentication method. Option E (Azure CLI) is a command-line tool, not an authentication method per se.
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.
✓
Microsoft Entra ID authentication.
Why this is correct
Supported for Azure Storage.
Related concept
Read the scenario before looking for a memorised answer.
✓
Storage account access keys.
Why this is correct
One of the primary authentication methods.
Related concept
Read the scenario before looking for a memorised answer.
✗
X.509 certificate authentication.
Why it's wrong here
Not supported for Azure Storage authentication.
✗
SAS tokens generated from the storage account.
Why it's wrong here
SAS tokens are delegated access, not a primary authentication method.
✗
Azure CLI login.
Why it's wrong here
Azure CLI is a tool, not an authentication method for storage.
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: Microsoft Entra ID authentication. — Correct: B and D. Shared access keys and Entra ID authentication are both supported. Option A (X.509 certificates) is not supported for storage. Option C (SAS tokens) is a form of shared access, but not a primary authentication method. Option E (Azure CLI) is a command-line tool, not an authentication method per se.
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.
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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