PL-900 Demonstrate the capabilities of Power Apps Practice Test 5 — 15 Questions

Question 1

A Power Apps developer creates a canvas app that uses the 'Power Apps for Makers' license. The app is shared with 50 users who have 'Microsoft 365 E3' licenses. When users try to run the app, they get a licensing error. What is the most likely cause?

Choose an answer to begin — your selection is scored in the full session.

Accepted Answer

The app is a premium app that requires a Power Apps per user license. The 'Power Apps for Makers' license allows the developer to create apps, but running an app that uses premium features (such as premium connectors, Dataverse, or custom connectors) requires each user to have a Power Apps per user or per app license. Microsoft 365 E3 licenses include Power Apps for Microsoft 365 (standard connectors only), so if the app is premium, E3 users will get a licensing error.

Answer

The app was published to a different environment

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The app uses Microsoft Dataverse, which is not included in E3

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The app uses AI Builder, which is not included in E3

Question 2

A model-driven app shows a custom form with fields from two related tables: Order and Customer. The form is set to display the Customer fields as a subgrid. Users want to see Customer details inline without navigating away. What should the app maker do?

Accepted Answer

Use a quick view form for the Customer table. A quick view form in Power Apps displays read-only information from a related table inline on a form, allowing users to see Customer details without navigating away. It is specifically designed to show related record data within the context of the primary record.

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Add a new form section for Customer fields

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Create a custom page with a canvas control

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Add a subgrid for the Customer table

Question 3

A canvas app uses a SharePoint list as its data source. The list contains over 5000 items. Users can only see the first 500 items in the app. What is the most likely solution?

Accepted Answer

Modify the query to use a delegable filter. Power Apps has a default delegation limit of 500 items for non-delegable queries. Using a delegable query (e.g., Filter with column that supports delegation) solves this. Changing to gallery doesn't help; increasing list size limit is not possible; switching to Dataverse avoids the issue but is a bigger change.

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Change the gallery to display items in a data table

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Migrate the data to Microsoft Dataverse

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Increase the SharePoint list view threshold

Question 4

Which TWO features are available in model-driven apps but not in canvas apps?

Accepted Answer

Business process flows. Business process flows (B) are a component of the Common Data Service/Dataverse that can be added to model-driven apps to guide users through stages of a process, but they are not natively supported as a canvas app component. Dashboards (E) are a standard model-driven app component that renders Dataverse views, charts, and lists on a single surface, whereas canvas apps do not provide this built-in dashboard type. Custom connectors (A) are available in both canvas and model-driven apps, so they are not exclusive to model-driven apps. Responsive design (C) is actually a strength of canvas apps, which scale to different screen sizes, so it is not a model-driven-only feature. Offline capability (D) is supported in canvas apps via the offline profile and SaveData/LoadData functions, so it is not exclusive to model-driven apps either.

Answer

Custom connectors

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Responsive design

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Offline capability

Question 5

A Power Apps app calls a Power Automate flow with the trigger schema shown. The app passes an email string and a score number. However, the flow fails with a validation error. What is the most likely cause?

Accepted Answer

The app is passing the parameters as individual strings instead of a JSON object. The trigger expects an object with properties 'email' and 'score'. If the app passes the parameters in a different order or as separate values instead of a JSON object, the flow fails. The schema is valid, and the types match.

Answer

The email property is misspelled

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The score property should be a string

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The flow trigger is set to 'When a HTTP request is received' instead of manual

Question 6

A canvas app displays a label with the formula shown. Users report that the label shows 'Welcome, !' without a name. What is the most likely cause?

Accepted Answer

The user is not authenticated with Power Apps. The User() function in Power Apps returns the currently authenticated user's record, including FullName and Email. If the label shows 'Welcome, !' with an empty name, the most likely cause is that the user is not authenticated (for example, viewing the app anonymously or in a context where User() returns blank), so the FullName property resolves to an empty string. This is a common scenario when apps are shared via public links or when the user session has expired.

Answer

The FullName property is spelled incorrectly

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The ampersand (&) operator is incorrect

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The User() function is not available in canvas apps

Question 7

A company is building a canvas app to track sales leads. The app must display a count of leads grouped by status (New, Contacted, Qualified, Closed). Which data source and visualization control should the app maker use to meet this requirement?

Accepted Answer

Add a Gallery control with Items = GroupBy(Leads, Status), then add a Label showing CountRows(ThisItem.AllItems).. Using a Gallery control with GroupBy(Leads, Status) groups the leads by status, and adding a Label with CountRows(ThisItem.AllItems) displays the count for each group, meeting the requirement to display counts per status. Option A is incorrect because a Data table control with GroupBy and CountRows in a column does not inherently group and aggregate correctly; the CountRows function would need to be applied per group, which is more complex. Option C is incorrect because a Form control is for data entry, not aggregating and displaying grouped counts. Option D is incorrect because a Pie chart control can show proportions but requires an aggregated data source; directly connecting to a SharePoint list without grouping may not display counts correctly, and the description of 'Values as Count of Status' is ambiguous and not directly supported by the chart control without pre-aggregation.

Answer

Add a Data table control and set the Items property to GroupBy(Leads, Status) and use CountRows in a column.

Answer

Add a Form control bound to the Leads list and use the Status field to filter records.

Answer

Add a Pie chart control connected to the SharePoint list, configure the Legend field as Status and Values as Count of Status.

Question 8

A user creates a model-driven app for incident management. They want a custom button on the Incident form that, when clicked, creates a new activity record of type 'Phone Call' with the incident number in the subject. What is the recommended approach?

Accepted Answer

Add a custom ribbon button with a JavaScript command that uses Xrm.WebApi.createRecord.. Adding a custom ribbon button with a JavaScript command that uses Xrm.WebApi.createRecord is the recommended approach because it provides a native model-driven app experience, executes client-side, and can create a Phone Call activity record with the incident number in the subject. This is a standard extensibility pattern for model-driven apps.

Answer

Define a business rule on the form that creates a new activity when the button is clicked.

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Create a custom connector to the Dataverse API and use it in the app.

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Use a Power Automate flow triggered from the button with a Dataverse 'Create a new record' action.

Question 9

A canvas app displays incorrect data because the source SharePoint list has a lookup column to another list. The app maker used 'Choices' function to populate a dropdown, but the dropdown shows IDs instead of display names. What is the cause?

Accepted Answer

The Choices function was used on a lookup column, which returns a table of IDs; use Choices( [List].[Column].DisplayName ) instead.. The Choices function when used on a lookup column returns a table of IDs by default, not display names. To get display names, the correct syntax is Choices([List].[Column].DisplayName). Option B is incorrect because the Choices function returns both IDs and display names; the DisplayFields property is not needed if using the correct syntax. Option C is incorrect because lookup columns are typically text-based, not number types. Option D is incorrect because delegation is not relevant to this issue.

Answer

The Choices function was used correctly but the dropdown's DisplayFields property is not set to the display name column.

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The lookup column is a number type, not text, so it cannot show names.

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The formula is not delegable, causing only partial data.

Question 10

A company uses a model-driven app to manage customer cases. The app needs to ensure that when a case is resolved, the resolution time (in hours) is automatically calculated and stored in a custom field. Which feature should be used?

Accepted Answer

A real-time workflow (cloud flow) triggered when a case is resolved.. (calculated field) is incorrect because calculated fields are computed only when the record is created or updated via the form, and they cannot recalculate based on subsequent status changes. Option B (real-time workflow/cloud flow) is correct because a Power Automate cloud flow can be triggered immediately when a case is updated and, if the status is 'Resolved', calculate the resolution time and update the custom field. Option C (business rule) is incorrect because business rules run on the client side and cannot perform calculations that persist to the database or reference other record fields dynamically. Option D (scheduled flow) is incorrect because it runs on a timer, not in response to the status change, resulting in delays and potential inaccuracies.

Answer

A calculated field that computes the difference between created and resolved dates.

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A business rule that sets the resolution time field when the status changes.

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A scheduled Power Automate flow that runs every hour and updates resolved cases.

Question 11

A model-driven app for inventory management uses a custom entity 'Warehouse'. The app maker added a subgrid showing 'Warehouse Items' related to the selected warehouse. However, the subgrid does not show any data even though there are items linked. What is the most likely cause?

Accepted Answer

The relationship between Warehouse and Warehouse Items is not configured correctly or is missing.. The most likely cause is that the relationship between Warehouse and Warehouse Items is not configured correctly or is missing (Option C). Without a proper one-to-many relationship defined, the subgrid cannot retrieve the related records. Option A is incorrect because the lookup field belongs on the Warehouse Items entity, not on the Warehouse form; the subgrid relies on the relationship, not a lookup on the main form. Option B is incorrect because read permissions would affect all views of the entity, not just the subgrid; given that items are linked, permissions are likely sufficient. Option D is incorrect because subgrids are fully supported on main forms in model-driven apps.

Answer

The Warehouse form does not include the lookup field to Warehouse Items.

Answer

The user does not have read permissions on the Warehouse Items entity.

Answer

The subgrid component is not supported on the main form.

Question 12

A model-driven app for project management uses a custom entity 'Project' with a status field. The app maker wants to show a timeline of project phases using a timeline control. What must be configured for the timeline to display correctly?

Accepted Answer

Create an activity entity for project phases and relate it to the Project entity.. The timeline control requires a relationship to an activity entity (like Appointment) or a custom entity configured as an activity. Option A is wrong because the timeline does not require a specific field. Option B is wrong because timeline does not use subgrid. Option D is wrong because timeline is not a standard SharePoint integration.

Answer

Add a subgrid of project phases and configure it as a timeline.

Answer

Set the timeline control's date field to the project start date.

Answer

Integrate with Microsoft Project for timeline data.

Question 13

Which THREE actions can be performed by using Power Apps component framework (PCF) in a model-driven app?

Accepted Answer

Implement data validation using Dataverse Web API. Option B is correct because PCF controls run client-side in model-driven apps and can call the Dataverse Web API (via the context.webAPI object) to perform data validation logic against Dataverse records. Option C is correct because PCF is specifically designed to build custom input controls (field-bound or dataset-bound) with rich, complex UI elements like HTML5/Canvas, React, or other frameworks that native controls cannot provide. Option F is correct because PCF controls can make external API calls (e.g., via fetch or XMLHttpRequest) to render custom visualizations with data from outside Dataverse. Option A is not correct because field-change client-side scripts are implemented with JavaScript web resources and form event handlers, not PCF. Option D is not correct because form layout changes via drag and drop are done in the form designer, not through PCF. Option E is not correct because business rules are configured declaratively in the Power Apps maker portal, not built with PCF.

Answer

Add a client-side script that runs on field change

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Change the layout of the main form using drag and drop

Answer

Configure a business rule to set field values

Question 14

Which TWO are benefits of using model-driven apps over canvas apps for enterprise data management?

Accepted Answer

Responsive design that automatically adapts to screen size. Option A is correct because model-driven apps are built on the Unified Interface, which is inherently responsive and automatically adapts its layout to different screen sizes and devices without the maker needing to design each form factor manually. Option E is correct because model-driven apps are built directly on Microsoft Dataverse, which provides built-in role-based security (security roles, field-level security, business units) and compliance capabilities out of the box, making them well suited to enterprise data management. Option B is not a distinguishing benefit here, since offline capability is primarily associated with canvas apps (and model-driven apps have limited offline support), not a core advantage over canvas apps. Option C is incorrect because custom connectors are available to both canvas and model-driven apps, so it is not a differentiator. Option D is incorrect because complex formulas and logic are typically easier to express in canvas apps via Power Fx, whereas model-driven apps rely more on business rules, workflows, and plugins.

Answer

Ability to work offline on mobile devices

Answer

Support for custom connectors to external systems

Answer

Easier to create complex formulas and logic

Question 15

You are troubleshooting a Power Apps issue. Using PowerShell, you run Get-AdminPowerApp and see the exhibit output. What does the EnvironmentName field indicate?

Accepted Answer

The unique identifier of the Dataverse environment hosting the app.. The EnvironmentName field in Get-AdminPowerApp output is a GUID that uniquely identifies the Dataverse environment where the app is hosted. Option A is incorrect because it is not a license key; Option C is incorrect because it is not a custom connector name; Option D is incorrect because it is not a SharePoint site name. Only Option B correctly describes the field.

Answer

The license key for Power Apps.

Answer

The name of the custom connector used by the app.

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The name of the SharePoint site where the app is stored.