DP-203 Develop data processing Practice Question
You are implementing a data processing solution using Azure Data Factory. You have a pipeline that copies data from Azure Blob Storage to Azure Data Lake Storage Gen2. You need to ensure that the copy activity uses managed identity for authentication and that the data is transferred securely. Which TWO configurations should you apply?
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
✓
Configure the source and sink linked services to use managed identity authentication.
Options C and D are correct. Option C is correct because managed identity authentication is configured in the linked service, not in the copy activity itself. Option D is correct because setting the integration runtime to 'AutoResolveIntegrationRuntime' uses Azure's network, ensuring data transfer remains within Azure and does not go over the public internet if using managed virtual network. Option A is wrong because 'enableDataIntegrityValidation' is for integrity checks, not authentication. Option B is wrong because the copy activity does not have a 'UseManagedIdentity' property; managed identity is configured in the linked service. Option E is wrong because staging is not required for secure transfer; it's used for performance or polybase.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Set the copy activity's 'enableDataIntegrityValidation' to true.
Why it's wrong here
Data integrity validation is not about security.
- ✗
Set the copy activity's 'UseManagedIdentity' property to true.
Why it's wrong here
Managed identity is configured at the linked service level, not the activity.
- ✓
Configure the source and sink linked services to use managed identity authentication.
Why this is correct
Linked services support managed identity for authentication.
- ✓
Set the integration runtime to 'AutoResolveIntegrationRuntime' to ensure data stays within Azure.
Why this is correct
AutoResolve uses the Azure network, avoiding public internet if using managed VNet.
- ✗
Enable staged copy with a temporary blob store to improve security.
Why it's wrong here
Staged copy is for performance, not security.
Visual reference
Quick reference
Azure Blob Storage Tier Comparison
| Tier | Storage Cost | Retrieval Cost | Latency | Use Case |
|---|---|---|---|---|
| Hot | Highest | Lowest | Immediate | Active data, frequent reads |
| Cool | Lower | Higher | Immediate | Data accessed < once / month |
| Cold | Lower still | Higher | Immediate | Data accessed < once / quarter |
| Archive | Lowest | Highest + rehydration delay | Hours | Long-term compliance retention |
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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