PL-400 Microsoft Power Platform Developer Free Demo Questions – Try Before You Buy

Question 1

You need to add the script for the registration form event handling. Which code segment should you use?

A

formContext.data.entity.addOnSave(myFunction)

B

formContext.data.addOnLoad(myFunction)

C

formContext.data.removeOnLoad(myFunction)

D

addOnPreProcessStatusChange

E

formContext.data.isValid()

Correct Answer: B

Explanation:

Scenario: Information about upcoming tournaments must be pre-located into the registration form when the registration form loads. addOnLoad adds event handlers to the Subgrid OnLoad event event.

Question 2

You need to determine the primary cause of the issue reported by interns when they use the app. What is the primary cause?

A

Interns have the System Customizer security role but need the Environment Maker security role.

B

Interns have the Common Data Service User security role but need the Environment Maker security role.

C

Interns have the Environment Maker security role but need the Common Data Service User security role.

D

Interns have the Environment Maker security role but need the System Customizer security role.

E

Interns have the Environment Maker security role but need the Delegate security role.

Correct Answer: D

Explanation:

Scenario: Interns can create apps but cannot interact with their own data. Environment Maker role: Can create new resources associated with an environment, including apps, connections, custom APIs, gateways, and flows using Microsoft Power Automate. However, this role doesn't have any privileges to access data within an environment. System Customizer role: full permission to customize the environment. However, users with this role can only view records for environment entities that they create.

Question 3

You need to handle errors in UpdateRecord.js. Which code segment should you add at line UR06?

A

catch(error) { alert("Caught error: " + error.message);}

B

Exception exception = Server.GetLastError() ; if(exception != null)}

C

catch(exception e){ console.writeline(e)}

D

function (error){ console.log(error.message)}

Correct Answer: A

Explanation:


catch(error) {
    alert("Caught error: " + error.message);
}
Why A is correctUpdateRecord.js is a JavaScript file.

JavaScript uses the syntax 
JavaScript uses the syntax catch(error) to handle exceptions in a try...catch block.
error.message retrieves the error description.
alert() displays the error to the user.
Why the others are incorrectB ❌ Uses C#/ASP.NET syntax (Server.GetLastError()), not JavaScript.
C ❌ Uses incorrect Java/C#-style exception syntax and console.writeline is not a valid JavaScript method.
D ❌ function(error){ console.log(error.message) } is a callback function, not a catch block for exception handling.
✅ Answer: A.
catch(error) {
    alert("Caught error: " + error.message)

Demo Microsoft PL-400 Exam Questions

You need to add the script for the registration form event handling. Which code segment should you use?

formContext.data.entity.addOnSave(myFunction)

formContext.data.addOnLoad(myFunction)

formContext.data.removeOnLoad(myFunction)

addOnPreProcessStatusChange

formContext.data.isValid()

Correct Answer: B

Scenario: Information about upcoming tournaments must be pre-located into the registration form when the registration form loads. addOnLoad adds event handlers to the Subgrid OnLoad event event.

You need to determine the primary cause of the issue reported by interns when they use the app. What is the primary cause?

Interns have the System Customizer security role but need the Environment Maker security role.

Interns have the Common Data Service User security role but need the Environment Maker security role.

Interns have the Environment Maker security role but need the Common Data Service User security role.

Interns have the Environment Maker security role but need the System Customizer security role.

Interns have the Environment Maker security role but need the Delegate security role.

Correct Answer: D

You need to handle errors in UpdateRecord.js. Which code segment should you add at line UR06?

catch(error) { alert("Caught error: " + error.message);}

Exception exception = Server.GetLastError() ; if(exception != null)}

catch(exception e){ console.writeline(e)}

function (error){ console.log(error.message)}

Correct Answer: A

`catch(error) {`

Demo Practice Mode