PL-900 Demonstrate the capabilities of Power Apps Practice Question
An organization needs to create a custom app that displays data from Dynamics 365 Sales and allows users to update records. The app should automatically generate a responsive UI based on the data model. Which type of app should they build?
⚠ Common exam trap
Candidates often confuse canvas apps (which require manual UI design) with model-driven apps (which auto-generate UI from data), leading them to choose canvas apps because they think 'custom app' means full control over the interface, ignoring the 'automatically generate a responsive UI' requirement.
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
✓
Model-driven app
A model-driven app is the correct choice because it automatically generates a responsive UI based on the underlying data model (e.g., Dynamics 365 Sales entities like Account, Contact, Opportunity). It provides built-in forms, views, and business process flows that allow users to view and update records without manual UI design, aligning with the requirement for automatic UI generation and data update capabilities.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Model-driven app
Why this is correct
Model-driven apps generate a responsive UI directly from the Dataverse data model, so no manual layout is needed. Because Dynamics 365 Sales stores its records in Dataverse, the app can display and update those records natively, satisfying the automatic UI generation requirement.
- ✗
Canvas app
Why it's wrong here
Canvas apps use a drag-and-drop designer where the maker positions each control manually, so no responsive UI is generated from the data model. It is tempting because canvas apps connect to Dynamics 365 Sales and support record updates, which suits pixel-perfect task-specific interfaces.
- ✗
Power Automate
Why it's wrong here
Power Automate orchestrates automated flows and approvals; it has no app interface for users to browse and update Dynamics 365 Sales records. It is tempting because it integrates natively with Dynamics 365, which suits background automation such as triggering notifications when a record changes.
- ✗
Power Pages
Why it's wrong here
Power Pages builds external-facing websites with Dataverse authentication and forms, not an internal model-driven app with an auto-generated responsive UI. It is tempting because it renders responsive pages from Dataverse data, which suits customer or partner portals rather than internal record editing.
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