The answer is to implement Azure RBAC with Microsoft Entra ID and enable diagnostic settings for Azure Storage. This combination is correct because Azure RBAC, integrated with Microsoft Entra ID, provides fine-grained, role-based authorization for Azure Data Lake Storage Gen2, ensuring only authenticated users with assigned roles can access data at the storage account, container, or file level. Enabling diagnostic settings captures all read, write, and delete operations, sending them to a Log Analytics workspace or event hub for comprehensive auditing. On the DP-203 exam, this question tests your understanding of the separation between authorization (who can access) and auditing (what they did), often appearing as a scenario where a team uses Azure Databricks and needs both controls. A common trap is to choose only access control lists (ACLs) or only storage analytics logs, but ACLs alone lack centralized auditing, and basic logs don’t enforce permissions. Remember the mnemonic “RAD” — RBAC for Authorization, Diagnostic settings for Auditing — to pair both requirements.
DP-203 Design and implement data storage Practice Question
This DP-203 practice question tests your understanding of design and implement data storage. 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.
Your team uses Azure Databricks to process data stored in Azure Data Lake Storage Gen2. You need to ensure that only authorized users can access the data and that access is audited. What should you implement?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Use Azure RBAC with Microsoft Entra ID and enable diagnostic settings for Azure Storage
Azure RBAC with Microsoft Entra ID (formerly Azure AD) provides fine-grained access control to Azure Data Lake Storage Gen2, ensuring only authorized users can access data. Enabling diagnostic settings for Azure Storage captures read, write, and delete operations, which are sent to a Log Analytics workspace, storage account, or event hub for auditing. This combination meets both the authorization and auditing requirements specified in the question.
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.
✓
Use Azure RBAC with Microsoft Entra ID and enable diagnostic settings for Azure Storage
Why this is correct
D is correct because RBAC provides fine-grained access control and diagnostic logs enable auditing.
Related concept
Read the scenario before looking for a memorised answer.
✗
Use Azure managed identities to access the storage account
Why it's wrong here
C is wrong because managed identities authenticate services, not individual users.
✗
Use shared access signatures (SAS) with stored access policies
Why it's wrong here
A is wrong because SAS tokens are not user-specific and auditing is limited.
✗
Configure the storage account firewall to allow only Azure Databricks IP addresses
Why it's wrong here
B is wrong because IP-based access does not provide user-level audit.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse authentication (managed identities) with authorization and auditing, or they assume network-level controls (firewall) are sufficient for access control and auditing, when in fact Azure RBAC with diagnostic settings is required for user-level authorization and audit trails.
Detailed technical explanation
How to think about this question
Azure RBAC for Data Lake Storage Gen2 uses the `Storage Blob Data Owner`, `Storage Blob Data Contributor`, and `Storage Blob Data Reader` roles, which are mapped to POSIX-style ACLs at the file and directory level. Diagnostic settings capture storage logs in the `StorageRead`, `StorageWrite`, and `StorageDelete` categories, which include the OAuth authentication details (e.g., user principal name) when using Microsoft Entra ID. In a real-world scenario, a data engineer might use Azure RBAC to grant a team member read-only access to a specific container while enabling diagnostic logs to track which files were accessed and by whom, satisfying compliance requirements like GDPR or SOC 2.
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 DP-203 question in full detail.
Design and implement data storage — This question tests Design and implement data storage — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Use Azure RBAC with Microsoft Entra ID and enable diagnostic settings for Azure Storage — Azure RBAC with Microsoft Entra ID (formerly Azure AD) provides fine-grained access control to Azure Data Lake Storage Gen2, ensuring only authorized users can access data. Enabling diagnostic settings for Azure Storage captures read, write, and delete operations, which are sent to a Log Analytics workspace, storage account, or event hub for auditing. This combination meets both the authorization and auditing requirements specified in the question.
What should I do if I get this DP-203 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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