DP-700 Monitor and Optimize an Analytics Solution Practice Question
You are monitoring an ingestion pipeline and notice it frequently fails with a 'Timeout' error. What is the most likely cause?
⚠ Common exam trap
Candidates often assume timeout errors are caused by internal pipeline compute exhaustion or network drops, completely overlooking that the external source system itself is slow or unresponsive.
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
✓
The source system is taking too long to respond.
Timeout errors in ingestion pipelines are usually caused by source systems failing to respond within the expected time window or the copy activity reaching the default threshold. Increasing the timeout duration or optimizing the data fetch process can resolve this. This is a common operational hurdle when dealing with heterogeneous source systems that may have variable performance characteristics or intermittent network connectivity, requiring careful tuning of the pipeline's connection parameters.
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 target table schema has changed.
Why it's wrong here
A schema change would result in a 'Schema Mismatch' or 'Data Type Conversion' error, not a 'Timeout' error. Timeouts specifically relate to the duration of the connection or the transfer of data, indicating that the source system is not responding in a timely manner to the request.
- ✓
The source system is taking too long to respond.
Why this is correct
A timeout error typically indicates that the source system did not send data back to the pipeline within the configured time limit. This can happen due to high load on the source system, slow network response, or a large volume of data being requested in a single batch.
- ✗
The pipeline has incorrect user credentials.
Why it's wrong here
Incorrect credentials would lead to an 'Authentication Failed' or 'Access Denied' error. If the pipeline successfully initiates the connection but then waits and fails after a period of time, it confirms that credentials are valid, but the system is failing to complete the transfer before the timeout.
- ✗
The data is already in the target table.
Why it's wrong here
If data were already in the target, the pipeline would either overwrite or append depending on the configuration. It would not result in a 'Timeout' error. Timeouts are strictly related to the communication and transport phase of the ingestion, not to the state of the data in the destination.
Visual reference
About these practice questions
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JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed September 2026 · checked against the official Microsoft exam blueprint
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