Salesforce PDI Free Certification Exam Questions Answer Aug 2025 update

Question # 21

Managers at Universal Containers want to ensure that only decommissioned containers are able to be deleted in the system. To meet the business requirement a Salesforce developer adds "Decommissioned" as a picklist value for the Status _c custom field within the Container _c object.

Which two approaches could a developer use to enforce only Container records with a status of "Decommissioned" can be deleted?

Choose 2 answers

Before record-triggered flaw

Apex trigger

After record-triggered flow

Validation rule

Question # 22

A developer is integrating with a legacy on-premise SQL database.

What should the developer use to ensure the data being integrated is matched to the right records in Salesforce?

External Object

External ID field

Formula field

Lookup field

Question # 23

An Apex method, getAccounts, that returns a List of Accounts given a searchTerm, is available for Lightning Web Components to use.

What is the correct definition of a Lightning Web Component property that uses the getAccounts method?

@wire(getAccounts, { searchTerm: '$searchTerm' })

@track(getAccounts, '$searchTerm')

@wire(getAccounts, 'searchTerm: $searchTerm')

@wire(getAccounts, '$searchTerm')

Explanation:

The correct syntax for using @wire to connect a Lightning Web Component property to an Apex method requires specifying the method and a configuration object that includes the reactive property prefixed with $. The correct usage is:

javascript

CopyEdit

@wire(getAccounts, { searchTerm: '$searchTerm' })

This correctly wires the reactive searchTerm property to the getAccounts method.

[Reference:, Wire a Property to an Apex Method, , To determine the correct definition of a Lightning Web Component (LWC) property that uses the getAccounts Apex method, we need to evaluate the syntax and usage of the @wire decorator in LWC, focusing on how it connects to Apex methods and passes parameters. Let’s analyze the problem and each option systematically, referencing Salesforce’s official Lightning Web Components Developer Guide., Understanding the Requirement:, Apex Method: The getAccounts method is an Apex method that returns a List and takes a parameter searchTerm. For an Apex method to be callable from an LWC, it must be annotated with @AuraEnabled(cacheable=true) (for @wire) and be static. The Lightning Web Components Developer Guide states: “To call an Apex method from a Lightning Web Component using @wire, the method must be static and annotated with @AuraEnabled(cacheable=true)” (Salesforce Lightning Web Components Developer Guide, Call Apex Methods)., LWC Property: The question asks for the correct definition of an LWC property that uses @wire to call getAccounts. The @wire decorator is used to wire a property or function to a data source, such as an Apex method, and can pass dynamic parameters., Parameter Passing: The searchTerm parameter must be passed dynamically to getAccounts, meaning its value comes from a reactive property (e.g., searchTerm) in the LWC. In LWC, reactive properties are tracked for changes, and the $ prefix is used to indicate reactivity in @wire parameters., LWC @wire Syntax:, The @wire decorator connects a property or function to a data source (e.g., an Apex method). When wiring to an Apex method, the syntax is: , javascript, Copy, @wire(apexMethod, { param1: '$property1', param2: '$property2' }), propertyName;, Apex Method Reference: The apexMethod is the imported Apex method (e.g., getAccounts imported from a controller)., Parameters: The second argument is an object mapping Apex method parameters to LWC properties. The $ prefix makes the property reactive, meaning the wired method re-invokes when the property changes. The Lightning Web Components Developer Guide explains: “Use the $ prefix in the parameters object to indicate a reactive property, so the wired method is called when the property’s value changes” (Salesforce Lightning Web Components Developer Guide, Pass Parameters to Apex Methods)., Result: The wired property receives an object with data (the Apex method’s return value) or error (if an error occurs)., Evaluating the Options:, A. @wire(getAccounts, { searchTerm: '$searchTerm' }) , Syntax: Uses @wire to call getAccounts and passes parameters as an object { searchTerm: '$searchTerm' }., Parameter Mapping: The searchTerm parameter of the getAccounts Apex method is mapped to the LWC’s searchTerm property. The $searchTerm syntax indicates that searchTerm is a reactive property, and getAccounts will be re-invoked if searchTerm changes., Correctness: This matches the standard LWC syntax for wiring an Apex method with parameters. The Lightning Web Components Developer Guide confirms: “Pass parameters to an Apex method as a JavaScript object, using the $ prefix for reactive properties” (Salesforce Lightning Web Components Developer Guide, Call Apex Methods)., Conclusion: Correct, as it uses the proper @wire syntax and parameter format., B. @track(getAccounts, '$searchTerm') , Syntax: Uses @track instead of @wire., Decorator: The @track decorator is used to make a property reactive, meaning the component re-renders when the property changes, but it does not wire the property to a data source like an Apex method. The Lightning Web Components Developer Guide states: “@track is used to mark a property as reactive for re-rendering, but it does not fetch data from a server” (Salesforce Lightning Web Components Developer Guide, Reactive Properties)., Parameter: Passing getAccounts and '$searchTerm' to @track is invalid, as @track does not accept arguments in this manner., Conclusion: Incorrect, as @track cannot be used to wire an Apex method., C. @wire(getAccounts, 'searchTerm: $searchTerm') , Syntax: Uses @wire to call getAccounts, but the parameters are passed as a string 'searchTerm: $searchTerm'., Parameter Format: The @wire decorator expects the second argument to be a JavaScript object (e.g., { searchTerm: '$searchTerm' }), not a string. The Lightning Web Components Developer Guide specifies: “The second argument to @wire for an Apex method must be an object mapping parameter names to values” (Salesforce Lightning Web Components Developer Guide, Pass Parameters to Apex Methods). Passing a string like 'searchTerm: $searchTerm' results in a runtime error or the Apex method not being called correctly., Conclusion: Incorrect, as the parameter format is invalid (string instead of an object)., D. @wire(getAccounts, '$searchTerm') , Syntax: Uses @wire to call getAccounts, but passes '$searchTerm' directly as a string, not as a parameter object., Parameter Format: The getAccounts method expects a parameter named searchTerm, so the correct format is { searchTerm: '$searchTerm' }. Passing '$searchTerm' as a single value does not map to the Apex method’s parameter name, causing the method to receive no value for searchTerm (or fail entirely). The Lightning Web Components Developer Guide notes: “Parameter names in the object must match the Apex method’s parameter names” (Salesforce Lightning Web Components Developer Guide, Call Apex Methods)., Conclusion: Incorrect, as the parameter is not passed as a properly formatted object mapping to the Apex method’s parameter., Why Option A is Correct:, Option A is correct because:, It uses the @wire decorator to properly connect the getAccounts Apex method to an LWC property., It passes the searchTerm parameter in the correct format: { searchTerm: '$searchTerm' }, mapping the Apex method’s parameter to the LWC’s reactive searchTerm property., The $searchTerm syntax ensures reactivity, so the getAccounts method is re-invoked when searchTerm changes, aligning with LWC best practices., This matches the standard syntax outlined in the Salesforce Lightning Web Components Developer Guide for wiring Apex methods with parameters., Example for Clarity:, Here’s how option A would be used in a complete LWC JavaScript file:, javascript, Copy, import { LightningElement, wire } from 'lwc';, import getAccounts from '@salesforce/apex/AccountController.getAccounts';, , export default class MyComponent extends LightningElement {, searchTerm = ''; // Reactive property for search term, , // Wire the getAccounts Apex method to a property, @wire(getAccounts, { searchTerm: '$searchTerm' }), accounts;, , // Example: Update searchTerm based on user input, handleSearchTermChange(event) {, this.searchTerm = event.target.value;, }, }, Apex Controller (for reference):, apex, Copy, public with sharing class AccountController {, @AuraEnabled(cacheable=true), public static List getAccounts(String searchTerm) {, return [SELECT Id, Name FROM Account WHERE Name LIKE :('%' + searchTerm + '%')];, }, }, Behavior: When searchTerm changes (e.g., due to user input), the @wire decorator re-invokes getAccounts with the new searchTerm value, and the accounts property receives the result (e.g., { data: [/* Account records */], error: undefined })., Handling Typos:, The options are syntactically correct in the provided image, with no typos to address. However, the options assume getAccounts is properly imported and defined in the Apex controller, which we infer based on the question’s context., The question’s phrasing is clear, and the options align with typical LWC syntax patterns., References:, Salesforce Lightning Web Components Developer Guide: , “Call Apex Methods” section: Details the use of @wire to call Apex methods, including parameter passing., “Pass Parameters to Apex Methods” section: Explains the { param: '$property' } syntax for reactive parameters., “Reactive Properties” section: Clarifies the role of @track (and why it’s not applicable here).(Available at: https://developer.salesforce.com/docs/component-library/documentation/en/lwc/), Salesforce Apex Developer Guide: , “AuraEnabled Annotation” section: Describes requirements for Apex methods to be callable from LWC (@AuraEnabled(cacheable=true)).(Available at: https://developer.salesforce.com/docs/atlas.en-us.apexcode.meta/apexcode/), Platform Developer I Study Guide: , Section on “User Interface”: Covers building LWCs, including wiring Apex methods and handling reactivity.(Available at: https://trailhead.salesforce.com/en/content/learn/modules/platform-developer-i-certification-study-guide), , ]

Question # 24

A developer is implementing an Apex class for a financial system. Within the class, the variables 'creditAmount' and 'debitAmount' should not be able to change once a value is assigned.

In which two ways can the developer declare the variables to ensure their value can only be assigned one time?

Choose 2 answers

Use the static keyword and assign its value in a static initializer.

Use the final keyword and assign its value in the class constructor.

Use the final keyword and assign its value when declaring the variable.

Use the static keyword and assign its value in the class constructor.

Question # 25

When importing and exporting data into Salesforce, which two statements are true?

Choose 2 answers

Bulk API can be used to bypass the storage limits when importing large data volumes in development environments.

Data import wizard is an application that is installed on your computer

Bulk APL can be used to import large data volumes in development environments without bypassing the storage limits.

Developer and Developer Pro sandboxes have different storage limits.

Question # 26

What should a developer use to script the deployment and unit test execution as part of continuous integration?

VS Code

Execute Anonymous

Salesforce CLI

Developer Console

Question # 27

What are two benefits of using declarative customizations over code?

Choose 2 answer

Declarative customizations automatically update with each Salesforce release.

Declarative customizations automatically generate test classes.

Declarative customizations cannot generate run time errors

Declarative customizations generally require less maintenance

Question # 28

A developer has an integer variable called maxAttempts. The developer needs to ensure that once maxAttempts is initialized, it preserves its value for the length of the Apex transaction; while being able to share the variable's state between trigger executions.

How should the developer declare maxAttempts to meet these requirements?

Declare maxattempts as a constant using the static and final keywords.

Declare maxattempts as a member variable on the trigger definition.

Declare maxattempts as a variable on a helper class.

Declare maxAttempts as a private static variable on a helper class.

Question # 29

The Account object in an organization has a master-detail relationship to a child object called Branch. The following automations exist:

* Roll-up summary fields

* Custom validation rules

* Duplicate rules

developer created a trigger on the Account object.

Which two things should the developer consider while testing the trigger code?

Choose 2 answers

Rollup summary fields can cause the parent record to go through Save.

Duplicate rules are executed once all DML operations commit to the database.

The trigger may fire multiple times during a transaction.

The validation rules will cause the trigger to fire again.

Question # 30

A developer created a child Lightning web component nested inside a parent Lightning web component. The parent component needs to pass a string value to the child component.

In which two ways can this be accomplished?

Choose 2 answers

The parent component can invoke a public method in the child component.

The parent component can use a public property to pass the data to the child component,

The parent can use the Apex controller class to send data to the child component.

The parent component can use a custom event to pass the data to the child component.

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