PL-900 Demonstrate the capabilities of Power Apps Practice Question
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?
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 on-premises data gateway is configured with a single data source and is not scaled for concurrent requests.
The on-premises data gateway, if configured with a single data source and not scaled for concurrent requests, can become a bottleneck when multiple users or queries access the SQL Server simultaneously, leading to slow performance. Option A is incorrect because the presence of a canvas app component doesn't inherently cause excessive data loading; data loading depends on how the app is built. Option B is incorrect because authentication method (OAuth vs basic) affects security, not performance. Option C is incorrect because the Power Apps license type (per app vs per user) affects licensing cost and access, not the performance of data retrieval through the gateway.
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.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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