AZ-500 Secure compute, storage, and databases Practice Question
This AZ-500 practice question tests your understanding of secure compute, storage, and databases. 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 are configuring security for an Azure Functions app that processes credit card numbers. You need to ensure that the function can securely access a storage account without storing any credentials in code or configuration, and that all data in the storage account is encrypted with a customer-managed key. Which three actions should you take?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Assign the 'Storage Blob Data Contributor' role to the function app's managed identity
Option A is correct: managed identity allows the function to authenticate without credentials. Option C is correct: RBAC assignment allows the function to access the storage account. Option E is correct: CMK encryption at rest. Option B (connection string) is not secure. Option D (Key Vault reference) still requires a secret, but managed identity is better.
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.
✓
Assign the 'Storage Blob Data Contributor' role to the function app's managed identity
Why this is correct
Grants access to storage account.
Related concept
Read the scenario before looking for a memorised answer.
✓
Configure the storage account to use customer-managed keys for encryption
Read the scenario before looking for a memorised answer.
✗
Store the storage account connection string in an application setting
Why it's wrong here
Exposes credentials.
✓
Enable system-assigned managed identity on the function app
Why this is correct
Provides identity without credentials.
Related concept
Read the scenario before looking for a memorised answer.
✗
Use a Key Vault reference in the function app configuration to retrieve the storage account key
Why it's wrong here
Still uses a key, not as secure as managed identity.
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: Assign the 'Storage Blob Data Contributor' role to the function app's managed identity — Option A is correct: managed identity allows the function to authenticate without credentials. Option C is correct: RBAC assignment allows the function to access the storage account. Option E is correct: CMK encryption at rest. Option B (connection string) is not secure. Option D (Key Vault reference) still requires a secret, but managed identity is better.
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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