Quick Answer
The answer is memory grant waiters count, DWU usage, and active queries. Memory grant waiters count is critical because it directly measures the number of queries stalled while waiting for memory resources, which is a primary bottleneck in dedicated SQL pool performance; DWU usage reveals whether your pool is under- or over-provisioned relative to workload demands, while active queries tracks concurrency and helps identify when the workload exceeds the configured concurrency slots. On the Microsoft Azure Data Engineer Associate DP-203 exam, this question tests your ability to distinguish performance-oriented metrics from storage or caching metrics—a common trap is selecting cache hit ratio, which applies to SQL Server but not to Synapse’s distributed architecture, or storage usage, which measures capacity rather than runtime performance. Remember the mnemonic “DAM” for Dedicated pool, Active queries, and Memory waiters to quickly recall the three performance-focused metrics.
This DP-203 practice question tests your understanding of secure, monitor, and optimize data storage and data 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.
Which THREE metrics should you monitor to optimize the performance of an Azure Synapse Analytics dedicated SQL pool? (Choose three.)
Storage used percentage
Why wrong: Capacity metric, not performance
DWU (Data Warehouse Unit) usage percentage
Indicates resource utilization
Active queries count
Helps assess concurrency
Buffer cache hit ratio
Why wrong: Not a dedicated SQL pool metric
Memory grant waiters count
Shows memory contention
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
DWU (Data Warehouse Unit) usage percentage
Options A, C, and D are correct. Option A: DWU usage indicates if the pool is under- or over-provisioned. Option C: Memory grant waiters shows queries waiting for memory. Option D: Active queries help concurrency. Option B is wrong because cache hit ratio is for SQL Server. Option E is wrong because storage usage is about capacity, not performance.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
Storage used percentage
Why it's wrong here
Capacity metric, not performance
DWU (Data Warehouse Unit) usage percentage
Why this is correct
Indicates resource utilization
Related concept
Read the scenario before looking for a memorised answer.
Active queries count
Why this is correct
Helps assess concurrency
Related concept
Read the scenario before looking for a memorised answer.
Buffer cache hit ratio
Why it's wrong here
Not a dedicated SQL pool metric
Memory grant waiters count
Why this is correct
Shows memory contention
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
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
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.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
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.
What to study next
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.
Secure, monitor, and optimize data storage and data processing — study guide chapter
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FAQ
Secure, monitor, and optimize data storage and data processing — This question tests Secure, monitor, and optimize data storage and data processing — Read the scenario before looking for a memorised answer..
The correct answer is: DWU (Data Warehouse Unit) usage percentage — Options A, C, and D are correct. Option A: DWU usage indicates if the pool is under- or over-provisioned. Option C: Memory grant waiters shows queries waiting for memory. Option D: Active queries help concurrency. Option B is wrong because cache hit ratio is for SQL Server. Option E is wrong because storage usage is about capacity, not performance.
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.
Read the scenario before looking for a memorised answer.
About these practice questions
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Same concept, more angles
These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.
Variation 1. Which THREE metrics should you monitor to optimize the performance of an Azure Synapse Analytics dedicated SQL pool? (Choose three.)
mediumWhy B: Options A, C, and D are correct. A: DWU usage indicates overall resource utilization. C: Queued queries indicate concurrency throttling. D: TempDB usage can cause performance degradation if high. Option B is wrong because storage space is not a performance metric (though important for capacity). Option E is wrong because login failures are security-related, not performance.
Last reviewed: Jun 21, 2026
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.
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