This DP-203 practice question tests your understanding of develop data processing. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. 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.
You are implementing a data pipeline in Azure Synapse Analytics that uses PolyBase to load data from Azure Data Lake Storage Gen2 into a dedicated SQL pool. The pipeline runs nightly and processes approximately 500 GB of data. You notice that the load operation is slow and frequently times out. What should you do to improve performance?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Increase the resource class for the loading user.
Option C is correct because increasing the resource class in dedicated SQL pool provides more resources (CPU, memory) to the PolyBase load operation, which directly addresses the timeout issue. Option A is wrong because columnstore indexes are relevant for query performance, not load speed. Option B is wrong because round-robin distribution can improve load speed, but the primary issue is resource allocation. Option D is wrong because the data type of the clustered index does not impact PolyBase load performance.
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.
✗
Create a columnstore index on the target table.
Why it's wrong here
Columnstore indexes improve query performance, not load speed.
✗
Use a clustered index on the target table.
Why it's wrong here
Clustered index does not affect load speed.
✓
Increase the resource class for the loading user.
Why this is correct
Higher resource class allocates more resources to the load operation.
Related concept
Read the scenario before looking for a memorised answer.
✗
Change the distribution of the target table to round-robin.
Why it's wrong here
Round-robin distribution may help, but the root cause is insufficient resources.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Detailed technical explanation
How to think about this question
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
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.
Use explanations to understand the rule behind the answer.
TExam Day Tips
→Underline the problem statement mentally.
→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.
Identify which DP-203 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
Develop data processing — This question tests Develop data processing — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Increase the resource class for the loading user. — Option C is correct because increasing the resource class in dedicated SQL pool provides more resources (CPU, memory) to the PolyBase load operation, which directly addresses the timeout issue. Option A is wrong because columnstore indexes are relevant for query performance, not load speed. Option B is wrong because round-robin distribution can improve load speed, but the primary issue is resource allocation. Option D is wrong because the data type of the clustered index does not impact PolyBase load performance.
What should I do if I get this DP-203 question wrong?
Identify which DP-203 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
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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