PL-900 Demonstrate the capabilities of Power Apps Practice Test 10 — 15 Questions

Question 1

Which THREE components are part of a canvas app's formula language?

Accepted Answer

Functions. Canvas app formulas use functions, operators, and controls. Dataverse tables are data sources, not formula components. Power Automate flows are separate.

Answer

Dataverse tables

Answer

Power Automate flows

Question 2

Which TWO data sources can be directly connected to a canvas app without using a premium connector?

Accepted Answer

Excel (OneDrive/SharePoint). SharePoint and Excel are standard connectors included with Power Apps. Dataverse and SQL Server require premium licenses, and Salesforce is premium.

Answer

Microsoft Dataverse

Answer

SQL Server

Answer

Salesforce

Question 3

A developer is creating a custom control using Power Apps Component Framework (PCF). After importing the solution, the control appears but does not show any data. What is the most likely issue based on the exhibit?

Accepted Answer

The control requires a dataset property but only a text property is defined. The 'abilities' section indicates the control expects a dataset, but the only property defined is a single line of text. The control likely needs a dataset property to receive data. The version, namespace, and display key are not causing data issues.

Answer

The display-name-key is missing a translation

Answer

The version number is incorrect

Answer

The namespace is misspelled

Question 4

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

Answer

The score property should be a string

Answer

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

Question 5

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 returns the current user's details. If the user is not signed in or the app doesn't have permission, FullName may be blank. The formula syntax is correct, and concatenation works.

Answer

The FullName property is spelled incorrectly

Answer

The ampersand (&) operator is incorrect

Answer

The User() function is not available in canvas apps

Question 6

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 7

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 allows creating a new activity record with specific values directly from the form. Option A is incorrect because business rules cannot create new records; they can only set field values or show/hide fields. Option B is incorrect because custom connectors are used for external APIs, not for standard Dataverse operations. Option C is incorrect because while Power Automate flows can create records, they require additional licensing and are more complex than a simple client-side script.

Answer

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

Answer

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

Answer

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

Question 8

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.

Answer

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

Answer

The formula is not delegable, causing only partial data.

Question 9

A user wants to build an app that allows field technicians to view work orders and capture photos offline. Which type of Power App should be chosen?

Accepted Answer

Canvas app with offline capability enabled.. Canvas apps can be enabled for offline use via the mobile app, allowing field technicians to view work orders and capture photos without connectivity. Option A is incorrect because Power Pages sites are public-facing websites, not designed for offline field worker scenarios. Option B is incorrect because AI Builder is a service for adding AI capabilities, not an app type; embedding it does not provide native offline support. Option C is incorrect because model-driven apps have limited offline capabilities and are not as flexible for offline data capture as canvas apps.

Answer

Power Pages site with offline access.

Answer

AI Builder model embedded in a canvas app.

Answer

Model-driven app because it natively supports offline.

Question 10

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 11

A company wants to create a Power App that allows employees to submit expense reports with receipts. The app must be accessible from both mobile devices and desktop browsers, and must include a workflow for approval. Which combination of Power Platform components should be used?

Accepted Answer

Canvas app with Power Automate flow triggered by form submission.. A canvas app is designed for responsive UI across mobile and desktop, making it suitable for both devices. Power Automate can be triggered from the canvas app (e.g., on form submission) to handle the approval workflow. Option B is incorrect because model-driven apps are not as flexible for custom mobile layouts. Option C is incorrect because AI Builder is not required for receipt processing in this scenario; while it could be used, it is not necessary. Option D is incorrect because Power Pages is for external-facing websites, not internal apps with approval workflows.

Answer

Model-driven app with embedded Power Automate flow for approval.

Answer

Canvas app with AI Builder to process receipts and Power Automate for approval.

Answer

Power Pages site with a custom workflow.

Question 12

A user reports that a canvas app is loading slowly. The app connects to a large SharePoint list with over 10,000 items. Which change would most improve performance?

Accepted Answer

Apply a delegable filter on the data source to limit records returned.. Applying a delegable filter on the data source limits the number of records retrieved to only those that match the filter, which significantly improves performance. Option A is incorrect because increasing the delegation limit does not help if the query itself is not delegable; the app will still retrieve all 10,000 items. Option C is wrong because adding more screens does not reduce the amount of data loaded. Option D is incorrect because disabling offline mode does not affect initial loading speed; it only impacts offline capabilities.

Answer

Increase the delegation limit to 10,000.

Answer

Add more screens to distribute the data.

Answer

Disable offline mode.

Question 13

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 14

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

Accepted Answer

Use of formulas like If, Switch, Filter. Canvas apps provide the ability to write formulas (like If, Switch, Filter) directly in the app, which is not available in model-driven apps. Model-driven apps use business rules and workflows instead of formulas. Additionally, canvas apps can directly access device capabilities (camera, GPS), whereas model-driven apps do not have direct access to native device features. Option A (Integration with Dataverse) is available in both canvas and model-driven apps, so it is not exclusive. Option C (Ability to use AI Builder models) is also available in both. Option E (Embedding a canvas app in a model-driven app) is a feature of model-driven apps, not canvas apps.

Answer

Integration with Microsoft Dataverse

Answer

Ability to use AI Builder models

Answer

Embedding a canvas app in a model-driven app

Question 15

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. All three correct options utilize Power Apps component framework (PCF) to create custom components. The null option involves building a custom visualization component that can call external APIs, such as REST endpoints, to display data from external sources. Option B is correct because PCF components can use the `context.webAPI` methods to interact with Dataverse Web API for data validation beyond simple client-side scripting. Option C is correct because PCF allows building custom input controls with complex UI elements like sliders or maps, which are not possible with out-of-the-box form controls. In contrast, options A, D, and E are incorrect: A uses client-side scripts (JavaScript) not PCF, D is done via form editor layout, and E uses business rules, which are separate features.

Answer

Add a client-side script that runs on field change

Answer

Change the layout of the main form using drag and drop

Answer

Configure a business rule to set field values