The answer is a misconfigured on-premises data gateway that is not scaled for concurrent requests. When Power Apps experiences slow data gateway performance, the most common technical culprit is that the gateway is handling multiple users or queries through a single data source without adequate connection pooling or scaling, causing request queuing and throttling even if the server itself has sufficient resources. On the PL-900 exam, this scenario tests your understanding of how on-premises data gateways manage concurrency and why gateway configuration—not licensing, authentication, or app type—directly impacts data retrieval speed. A common trap is assuming network or server resources are the bottleneck, but the exam emphasizes that a single gateway instance can become overwhelmed by simultaneous requests. Remember the memory tip: “One gateway, many requests—throttling is the test.”
PL-900 Demonstrate the capabilities of Power Apps Practice Question
This PL-900 practice question tests your understanding of demonstrate the capabilities of power apps. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. 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.
An organization has a model-driven app that uses a custom connector to an on-premises SQL Server database via an on-premises data gateway. Recently, users reported that the app is slow when loading data from the SQL Server. The network team confirms that the gateway server has sufficient resources. Which factor is most likely causing the performance degradation?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "most likely"
Why it matters: Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The on-premises data gateway is configured with a single data source and is not scaled for concurrent requests.
Option C is correct because a misconfigured data gateway can cause slow data retrieval, especially if the gateway is not optimized for the data volume or if the connection is throttled. Option A is wrong because Power Apps licensing does not affect performance. Option B is wrong because the custom connector's authentication method does not impact speed. Option D is wrong because the app type (canvas vs model-driven) does not inherently affect data gateway 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.
✗
The model-driven app uses a canvas app component that loads excessive data.
Why it's wrong here
Canvas components within model-driven apps do not bypass the data gateway.
✗
The custom connector uses OAuth authentication instead of basic authentication.
Why it's wrong here
Authentication method does not impact performance.
✗
The Power Apps license assigned to users is per app, not per user.
Why it's wrong here
Licensing does not affect data retrieval speed.
✓
The on-premises data gateway is configured with a single data source and is not scaled for concurrent requests.
Why this is correct
A single gateway can become a bottleneck under load; adding more gateways or using a cluster improves performance.
Clue confirmation
The clue word "most likely" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
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 company's IT admin needs to give a contractor read-only access to production logs without sharing account credentials. Using role-based access control (RBAC) and temporary scoped permissions — not a permanent shared password — is the correct pattern. Questions like this test whether you can apply least-privilege access across cloud identity services.
What to study next
Got this wrong? Here's your next step.
Identify which PL-900 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.
Demonstrate the capabilities of Power Apps — This question tests Demonstrate the capabilities of Power Apps — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: The on-premises data gateway is configured with a single data source and is not scaled for concurrent requests. — Option C is correct because a misconfigured data gateway can cause slow data retrieval, especially if the gateway is not optimized for the data volume or if the connection is throttled. Option A is wrong because Power Apps licensing does not affect performance. Option B is wrong because the custom connector's authentication method does not impact speed. Option D is wrong because the app type (canvas vs model-driven) does not inherently affect data gateway performance.
What should I do if I get this PL-900 question wrong?
Identify which PL-900 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.
Are there clue words in this question I should notice?
Yes — watch for: "most likely". Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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