PL 400 Power Apps Development 3

Question 1

Which Dataverse column type should you use to store a many-to-one relationship between a 'Contact' table and an 'Account' table?

Accepted Answer

Lookup column

Answer

A Lookup column creates a many-to-one relationship by storing a reference (foreign key) to a row in a related table.

Question 2

A canvas app's gallery is bound to a collection. A user edits a row in the gallery. Which function writes those edits back to the Dataverse data source?

Accepted Answer

Patch(DataSource, ThisItem, {Field: Value})

Answer

Patch() writes a record—or a set of field updates—directly to a data source, making it the correct function for updating Dataverse from a gallery interaction.

Question 3

You are building a PCF field control. The manifest declares a property with usage='bound'. What does this mean?

Accepted Answer

The property is linked to a Dataverse column and its value flows bidirectionally

Answer

A bound property is connected to a Dataverse column, meaning the control reads the column's value and can write back updated values through notifyOutputChanged.

Question 4

In a model-driven app, which feature allows you to run client-side logic automatically when a form field value changes?

Accepted Answer

JavaScript web resource registered on the field's OnChange event

Answer

JavaScript web resources registered on the OnChange event of a form field execute immediately in the browser when the field value is modified.

Question 5

Which Power Apps formula would you use to combine the FirstName and LastName columns from the Contacts table into a single display string?

Accepted Answer

Concatenate(ThisItem.FirstName, " ", ThisItem.LastName)

Answer

Concatenate() joins multiple text strings together, and the & operator can also be used, but Concatenate() is the explicit string-joining function.

(PL 400) Microsoft Certified Power Platform Developer Associate Practice Test

(PL 400) Microsoft Certified Power Platform Developer Associate Practice Test

PL 400 Power Apps Development 3