Salesforce Updated PDI Exam Questions and Answers by remy

Abefore triggerfires when records are inserted, updated, or deleted. Using the Data Loader or Bulk API to import data updates records, which triggers thebefore insertorbefore updateevents.

Not Suitable:

Option A: Renaming or replacing picklists does not trigger a record-level operation.

Option B: The Mass Address Update tool is not a record operation that triggersbeforetriggers.

Option D: Converting leads to contacts triggers lead conversion events, not directly related to Account triggers.

Apex Triggers

Maximum Trigger Depth Exceeded:

This error occurs when a trigger causes recursive calls, leading to an infinite loop of execution.

Solution:

Use static variables in helper classes to prevent recursive trigger execution.

Example:

public class TriggerHelper {

public static Boolean isTriggerExecuted = false;

}

trigger AccountTrigger on Account (after update) {

if (!TriggerHelper.isTriggerExecuted) {

TriggerHelper.isTriggerExecuted = true;

// Trigger logic here

}

}

Why Not Other Options?

A: Permissions do not affect trigger recursion.

B: Length of the trigger is unrelated to recursion.

C: Code coverage does not influence runtime errors like recursion.

In the context of the MVC (Model-View-Controller) architecture for a Lightning Web Component (LWC), the Apex class and JavaScript file are responsible for handling the controller's role:

Apex Class (Controller):

Acts as the server-side controller.

Executes business logic, such as the complex validations mentioned in the scenario.

Exposes methods for the LWC to call using@AuraEnabled.

Why Use Static Resources andTest.loadData?

C: Static resources allow you to define reusable test data (e.g., in a CSV file).

D:Test.loadDatasimplifies loading bulk test data into test classes from static resources.

Why Not Other Options?

A: Using@isTest(seeAllData=true)violates test isolation principles and is discouraged.

B:@isTest(isParallel=true)is used for parallel execution, not for creating test data.