The answer is to increase the resource class for the user executing the queries. This is correct because tempdb spills occur when a query’s memory grant is insufficient to hold intermediate results, forcing data to overflow to disk, which dramatically slows performance. By assigning a higher resource class, you allocate more memory per query, directly reducing the likelihood of spills in a dedicated SQL pool. On the Microsoft Azure Data Engineer Associate DP-203 exam, this concept tests your understanding of workload management and memory allocation in Synapse Analytics; a common trap is to mistakenly scale up the data warehouse or add indexes, but those do not address the per-query memory constraint. Remember the mnemonic “Spills Need More Memory” — when you see spills, think resource class, not resource scale.
DP-203 Practice Question: Monitor and optimize data storage and processing
This DP-203 practice question tests your understanding of monitor and optimize data storage and processing. 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. 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 have an Azure Synapse Analytics dedicated SQL pool. You notice that some queries are taking longer than expected. After reviewing the query plans, you see that some queries are spilling to tempdb. What should you do to reduce tempdb spills?
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 user executing the queries.
Tempdb spills occur when a query requires more memory than is allocated to it, forcing intermediate results to be written to disk. Increasing the resource class for the user executing the queries allocates more memory to that user's queries, reducing the likelihood of spills. This directly addresses the memory constraint that causes spills in a dedicated SQL pool.
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.
✓
Increase the resource class for the user executing the queries.
Why this is correct
Larger resource class allocates more memory, reducing tempdb spills.
Related concept
Read the scenario before looking for a memorised answer.
✗
Redistribute the tables using hash distribution.
Why it's wrong here
Distribution choice affects data movement, not memory per query.
✗
Rebuild all columnstore indexes.
Why it's wrong here
Rebuilding indexes improves performance but does not reduce memory spills.
✗
Add partitioning to the tables.
Why it's wrong here
Partitioning helps with data management, not memory allocation.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse performance tuning techniques like indexing or partitioning with memory management, assuming any optimization will fix spills, when only increasing memory allocation (via resource class) directly addresses the root cause.
Detailed technical explanation
How to think about this question
In Azure Synapse dedicated SQL pools, resource classes (e.g., smallrc, largerc) control the memory ceiling and concurrency slots for queries. A query spilling to tempdb indicates its memory grant was insufficient for operations like hash joins or sorts; raising the resource class increases the memory grant, allowing more operations to stay in memory. For example, moving from staticrc20 to staticrc40 can double the memory per query, directly reducing spill frequency.
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.
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
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 cloud solutions architect for a retail company is evaluating services for a new workload. The correct answer here reflects best practice for the specific scenario described — not a general cloud recommendation. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Cloud exam questions reward reading the constraint carefully: the same technology can be right or wrong depending on the use case.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this DP-203 question in full detail.
Monitor and optimize data storage and processing — This question tests Monitor and optimize data storage and 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 user executing the queries. — Tempdb spills occur when a query requires more memory than is allocated to it, forcing intermediate results to be written to disk. Increasing the resource class for the user executing the queries allocates more memory to that user's queries, reducing the likelihood of spills. This directly addresses the memory constraint that causes spills in a dedicated SQL pool.
What should I do if I get this DP-203 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
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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