PL 400 PCF Controls (Power Apps Component Framework)

Question 1

What is the primary purpose of the Power Apps Component Framework (PCF)?

Accepted Answer

To create custom, reusable UI controls for canvas and model-driven apps

Answer

To automate business workflows in Power Automate

Answer

To configure Dataverse security roles and permissions

Answer

To build embedded Power BI dashboards within Power Apps

Question 2

Which Power Apps CLI command is used to initialize a new PCF component project?

Accepted Answer

pac pcf create

Answer

pac solution create

Answer

pac plugin create

Answer

pac component init

Question 3

Which file serves as the contract between a PCF control and its host application by declaring properties and resources?

Accepted Answer

ControlManifest.Input.xml

Answer

control.config.json

Answer

manifest.yaml

Answer

component.definition.xml

Question 4

Which TypeScript interface must every PCF control class implement?

Accepted Answer

ComponentFramework.StandardControl<IInputs, IOutputs>

Answer

ComponentFramework.BaseControl

Answer

IPCFControl<IInputs, IOutputs>

Answer

PowerApps.IControl<IInputs>

Question 5

What is the role of the `init` method in a PCF control's lifecycle?

Accepted Answer

To create DOM elements, set initial state, and register event listeners the first time the control loads

Answer

To refresh the control UI whenever a bound property value changes

Answer

To release resources such as timers and event listeners when the control is removed

Answer

To return updated output property values to the host application

Question 6

What triggers the PCF framework to call a control's `updateView` method?

Accepted Answer

Any change to an input property value or the host environment context

Answer

A user click event inside the control's DOM container

Answer

A successful Dataverse web API call within the control

Answer

The control calling context.events.notifyOutputChanged()

Question 7

Which tool allows a PCF developer to test a control locally in a browser without deploying it to a Dataverse environment?

Accepted Answer

The PCF test harness launched by running `npm start`

Answer

Power Apps Studio's preview mode

Answer

Visual Studio Code Live Share extension

Answer

Power Platform Admin Center sandbox preview