- A
Create views in Azure Synapse Serverless SQL with security predicates
Serverless SQL can query ADLS and apply RLS via views.
- B
Assign Azure RBAC roles for each department on the storage account
Why wrong: RBAC roles control access at the storage account/container level, not rows.
- C
Implement Azure Purview data policies for row-level security
Why wrong: Purview does not enforce row-level security.
- D
Use Azure Data Lake Storage Gen2 access control lists (ACLs) at the file level
Why wrong: ACLs work at file/folder level, not row level.
Question 831 of 851
DP-203 Row-level security (RLS) 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. A key principle to apply: row-level security (RLS). 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.
A company is designing a data lake on Azure Data Lake Storage Gen2. They need to enforce row-level security on the data for different departments. Which approach should they use?
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
✓
Create views in Azure Synapse Serverless SQL with security predicates
Azure Synapse Serverless SQL supports row-level security through views that leverage the WHERE clause with user identity functions like SUSER_SNAME() to filter rows based on the user's department membership. This allows dynamic row filtering without duplicating data or managing separate files, and it is the only native Azure service that provides declarative row-level filtering directly on data stored in Azure Data Lake Storage Gen2.
Key principle: Row-level security (RLS)
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Create views in Azure Synapse Serverless SQL with security predicates
Why this is correct
Serverless SQL can query ADLS and apply RLS via views.
Related concept
Row-level security (RLS)
- ✗
Assign Azure RBAC roles for each department on the storage account
Why it's wrong here
RBAC roles control access at the storage account/container level, not rows.
- ✗
Implement Azure Purview data policies for row-level security
Why it's wrong here
Purview does not enforce row-level security.
- ✗
Use Azure Data Lake Storage Gen2 access control lists (ACLs) at the file level
Why it's wrong here
ACLs work at file/folder level, not row level.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates confuse Azure RBAC or ACLs (which control access to storage objects) with row-level security (which controls access to rows within a data set), leading them to choose a storage-level permission model instead of a query-level filtering mechanism.
Detailed technical explanation
How to think about this question
Row-level security in Azure Synapse Serverless SQL is implemented by creating a security policy that uses an inline table-valued function as a filter predicate. This predicate is evaluated against the `USER_NAME()` or `SESSION_CONTEXT()` to dynamically restrict rows. Under the hood, the serverless SQL engine pushes the predicate down to the data source (e.g., Parquet files) to minimize data movement, making it efficient for large datasets.
KKey Concepts to Remember
- Row-level security (RLS)
- Azure Synapse Serverless SQL
- Views with security filter
- User identity functions
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
Row-level security (RLS)
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.
Quick reference
Cloud Service Model Comparison
| Model | You Manage | Provider Manages | Examples |
|---|---|---|---|
| IaaS | OS, runtime, apps, data | Hardware, hypervisor, networking | EC2, Azure VMs, GCP Compute Engine |
| PaaS | Apps and data | OS, runtime, middleware, hardware | Elastic Beanstalk, Azure App Service |
| SaaS | Data and settings only | Everything else | Microsoft 365, Salesforce, Workday |
| FaaS / Serverless | Function code only | Infra, scaling, runtime | Lambda, Azure Functions, Cloud Run |
| CaaS | Containers and apps | Kubernetes, OS, hardware | EKS, AKS, GKE |
What to study next
Got this wrong? Here's your next step.
Review row-level security (RLS), then practise related DP-203 questions on the same topic to reinforce the concept.
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Design and implement data storage — study guide chapter
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Targeted practice on this topic area only
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Microsoft Azure Data Engineer Associate DP-203 study guide
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FAQ
Questions learners often ask
What does this DP-203 question test?
Design and implement data storage — This question tests Design and implement data storage — Row-level security (RLS).
What is the correct answer to this question?
The correct answer is: Create views in Azure Synapse Serverless SQL with security predicates — Azure Synapse Serverless SQL supports row-level security through views that leverage the WHERE clause with user identity functions like SUSER_SNAME() to filter rows based on the user's department membership. This allows dynamic row filtering without duplicating data or managing separate files, and it is the only native Azure service that provides declarative row-level filtering directly on data stored in Azure Data Lake Storage Gen2.
What should I do if I get this DP-203 question wrong?
Review row-level security (RLS), then practise related DP-203 questions on the same topic to reinforce the concept.
What is the key concept behind this question?
Row-level security (RLS)
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Last reviewed: Jun 24, 2026
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