AZ-204 Develop for Azure storage Practice Question
This AZ-204 practice question tests your understanding of develop for azure storage. 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.
Network Topology
Refer to the exhibit. You run the Azure CLI command to check if blob encryption is enabled for a storage account. The command returns 'false'. However, you know that Azure Storage encrypts all data at rest by default. What is the explanation?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The property 'encryption.services.blob.enabled' refers to customer-managed key encryption, not the default encryption
Option C is correct because the property `encryption.services.blob.enabled` in the Azure CLI command `az storage account show` specifically indicates whether customer-managed keys (CMK) are enabled for blob encryption, not whether the default Microsoft-managed key encryption is active. Azure Storage automatically encrypts all data at rest using Microsoft-managed keys, and this default encryption is always enabled and cannot be disabled. The command returns 'false' because CMK has not been configured, but the underlying default encryption is still in effect.
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 was created with Azure Disk Encryption instead
Why it's wrong here
Azure Disk Encryption is for VMs, not for storage accounts.
✗
The command is querying the wrong property; use 'encryption.requireInfrastructureEncryption'
Why it's wrong here
Infrastructure encryption is a different feature; the base encryption is always on.
✓
The property 'encryption.services.blob.enabled' refers to customer-managed key encryption, not the default encryption
Why this is correct
When using Microsoft-managed keys, this property is false; encryption is still active.
Related concept
Read the scenario before looking for a memorised answer.
✗
The storage account is in a region that does not support encryption
Why it's wrong here
All Azure regions support storage encryption.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates assume the `encryption.services.blob.enabled` property reflects the presence of any encryption (including default encryption), when in fact it only indicates whether customer-managed keys are in use, leading them to incorrectly conclude that encryption is disabled.
Detailed technical explanation
How to think about this question
Azure Storage uses 256-bit AES encryption for all data at rest, managed by Microsoft (SSE) by default. The `encryption.services.blob.enabled` property is part of the `Encryption` object returned by the Azure Resource Manager API, and when set to `true`, it indicates that a customer-managed key (CMK) has been assigned to the storage account via Azure Key Vault. This property is `false` when only the default Microsoft-managed key is used, which is always the case unless CMK is explicitly configured. A real-world scenario is when an organization must meet compliance requirements for key control; they would enable CMK and see this property become `true`, but the underlying default encryption remains active regardless.
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-204 question in full detail.
Develop for Azure storage — This question tests Develop for Azure storage — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: The property 'encryption.services.blob.enabled' refers to customer-managed key encryption, not the default encryption — Option C is correct because the property `encryption.services.blob.enabled` in the Azure CLI command `az storage account show` specifically indicates whether customer-managed keys (CMK) are enabled for blob encryption, not whether the default Microsoft-managed key encryption is active. Azure Storage automatically encrypts all data at rest using Microsoft-managed keys, and this default encryption is always enabled and cannot be disabled. The command returns 'false' because CMK has not been configured, but the underlying default encryption is still in effect.
What should I do if I get this AZ-204 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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