Create a Power Apps Component Framework (PCF) Code Component PL-400 Practice Questions (Page 5)

Questions 21–25

1. 21expert · hard

   A developer is building a PCF component that needs to display a success message after a Web API call completes. The component is running in a model-driven app. The developer wants to use the platform's native notification system. Which method should be used?

   • AUse window.alert() to show the message.
   • BUse context.navigation.openAlertDialog() to show the success message.
   • CUse context.device.captureImage() to show a notification.
   • DUse context.utility.confirmDialog() to show the success message.
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2. 22expert · hard

   A developer is building a PCF component that displays a chart. The component must update the chart when the bound data changes, but it must also handle the case where the container is resized. The developer wants to avoid unnecessary re-renders. Which approach should the developer take?

   • AIn updateView, always re-render the chart regardless of what changed.
   • BIn updateView, check the changed property and only re-render when the data field changes; use a separate resize listener for container size changes.
   • CIn getOutputs, re-render the chart and return the new output.
   • DIn init, set up a timer to periodically re-render the chart.
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4. 23foundation · easy

   Which Power Apps component framework lifecycle method is used to update the component's UI when the bound data or properties change?

   • Adestroy
   • BgetOutputs
   • CupdateView
   • Dinit
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5. 24application · medium

   A developer is building a PCF component that displays a formatted date. The component must update its displayed value whenever the bound field changes in the host app, but it should not re-render when the container is resized. Which lifecycle method should the developer implement to handle the field-change notification?

   • AImplement the updateView method and check the changed property in the context parameter.
   • BImplement the getOutputs method and return the formatted date.
   • CImplement the init method and set up a timer to poll the field value.
   • DImplement the destroy method and re-create the component on each field change.
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6. 25application · medium

   A developer is implementing a PCF component that needs to call the Dataverse Web API to retrieve related records. The component is running in a model-driven app. Which interface should the developer use to make the Web API call?

   • AUse the fetch method of the context.device object.
   • BUse the context.webAPI property of the component's context object.
   • CUse the context.utility.getGlobalContext() to get a Web API instance.
   • DUse the Xrm.WebApi object directly from the global namespace.
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