DP-203 Develop data processing Practice Question
You have a pipeline in Azure Data Factory that copies data from on-premises SQL Server to Azure Blob Storage. The pipeline fails with a 'Connection timed out' error. You have already verified that the Integration Runtime is running and the SQL Server firewall allows connections from the Integration Runtime. What should you check next?
⚠ Common exam trap
Candidates often assume a 'Connection timed out' error is always a firewall or network issue, overlooking the SQL Server-side protocol configuration that must be explicitly enabled for remote TCP connections.
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
✓
Check if the SQL Server is configured to allow remote connections and that TCP/IP is enabled
The 'Connection timed out' error, despite the Integration Runtime being running and the firewall allowing connections, typically indicates that SQL Server is not listening on the expected TCP port. This often happens when TCP/IP is disabled in SQL Server Configuration Manager or remote connections are not enabled. Without TCP/IP enabled, the Integration Runtime cannot establish a network connection to the SQL Server instance, leading to a timeout.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Ensure the Integration Runtime is registered and online
Why it's wrong here
If offline, the error would be about Integration Runtime not being found, not timeout.
- ✗
Check if the Blob Storage endpoint is accessible from the Integration Runtime
Why it's wrong here
The error is about source connection, not destination.
- ✓
Check if the SQL Server is configured to allow remote connections and that TCP/IP is enabled
Why this is correct
Timeout often indicates network blocking or SQL Server not listening on TCP/IP.
- ✗
Verify that the SQL Server login credentials are correct
Why it's wrong here
Invalid credentials would result in 'Login failed' error, not timeout.
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 |
Go deeper
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This DP-203 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 DP-203 exam.