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Quick Answer
The answer is to configure Azure Storage firewalls and virtual network service endpoints, implement customer-managed keys (CMK) in Azure Key Vault, and enable Azure Defender for Storage. These three controls collectively protect data at rest, in transit, and during processing by addressing distinct layers of the defense-in-depth model: CMK gives you ownership of encryption keys for data at rest, firewalls and service endpoints restrict network traffic to trusted sources for data in transit, and Azure Defender monitors for anomalous access patterns to safeguard data during active processing. On the AZ-500 exam, this scenario tests your ability to map specific Azure services to the three states of data protection, a common trap being to overlook that network controls like firewalls secure transit, not rest. Remember the mnemonic “FED” for Firewalls, Encryption keys (CMK), and Defender—each covers one leg of the data protection triad.
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.
You are designing a secure storage strategy for an Azure Storage account that will host sensitive financial data. The solution must protect data at rest, in transit, and during processing. Which three of the following security controls should you implement? (Choose three.)
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
✓
Enable Azure Storage encryption using customer-managed keys (CMK) stored in Azure Key Vault.
Customer-managed keys (CMK) in Azure Key Vault provide an additional layer of protection for data at rest by allowing you to control the encryption keys used by Azure Storage. Azure Defender for Storage detects anomalous access patterns and potential threats, protecting data during processing. Configuring firewalls and virtual network service endpoints restricts network access, securing data in transit by ensuring only trusted networks can communicate with the storage account.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse operational features like logging or load balancing with direct security controls that protect data confidentiality, integrity, and availability during all three states (at rest, in transit, and during processing).
Detailed technical explanation
How to think about this question
Azure Storage encryption using CMK leverages Azure Key Vault to wrap and unwrap the storage account's root key, ensuring that Microsoft cannot access your encryption keys without your authorization. Azure Defender for Storage uses machine learning models to analyze telemetry from storage read, write, and delete operations, triggering alerts for unusual activities like anonymous access or data exfiltration. Storage firewalls and service endpoints enforce network-level access control by evaluating source IP addresses or virtual network identities before allowing any request to reach the storage endpoint, effectively blocking unauthorized traffic at the network layer.
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.
What to study next
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FAQ
Questions learners often ask
What does this AZ-500 question test?
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: Enable Azure Storage encryption using customer-managed keys (CMK) stored in Azure Key Vault. — Customer-managed keys (CMK) in Azure Key Vault provide an additional layer of protection for data at rest by allowing you to control the encryption keys used by Azure Storage. Azure Defender for Storage detects anomalous access patterns and potential threats, protecting data during processing. Configuring firewalls and virtual network service endpoints restricts network access, securing data in transit by ensuring only trusted networks can communicate with the storage account.
What should I do if I get this AZ-500 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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Last reviewed: Jun 11, 2026
This AZ-500 practice question is part of Courseiva's free Microsoft certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the AZ-500 exam.
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