Salesforce PDI Exam Questions Free Practice Test

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Viewing questions 41-50 out of questions

Questions # 41:

Universal Containers wants a list button to display a Visualforce page that allows users to edit multiple records.

Which Visualforce feature supports this requirement?

Options:

Standard Controller with Custom List Controller extension

Custom List Controller with recorasetvar page attribute

Controller Extension and tag

Standard controller and the recordsetvar page attribute

Expert Solution

Questions # 42:

A developer is designing a new application on the Salesforce platform and wants to ensure it can support multiple tenants effectively.

Which design framework should the developer consider to ensure scalability and maintainability?

Options:

Waterfall Model

Flux (view, action, dispatcher, and store)

Model-View-Controller (MVC)

Agile Development

Expert Solution

Questions # 43:

Universal Hiring uses Salesforce to capture job applications. A salesforce administrator created two custom objects; Job__c acting as the master object, to Application_c acting as the detail.

Within the Job__c object, a custom multi-select picklist, preferred _Locations__c, contains a list of approved states for the position. Each Job_Application__c record relates to a Contact within the system through a master-detail relationship.

Recruiters have requested the ability to view whether the Contact's Mailing State value matches a value selected on the Preferred Locations__c field, within the Job_Application__c record. Recruiters would like this value to be kept in sync if changes occur to the Contact's Mailing State.

What is the recommended tool a developer should use to meet the business requirement?

Options:

Apex trigger

Roll-up summary field

Record-triggered flow

Expert Solution

Questions # 44:

A developer created this Apex trigger that calls MyClass.mystaticMethod:

The developer creates a test class with a test method that calls MyClass.myStaticMethod directly, resulting in 81% overall code coverage What happens when the developer tries to deploy the trigger and two classes to production, assuming no other code exists?

Options:

The deployment passes because both classes and the trigger were included in the deployment.

The deployment fails because no assertions were made in the test method.

The deployment passes because the Apex code has the required >75% code coverage.

The deployment fails because the Apex trigger has no code coverage.

Expert Solution

Questions # 45:

A developer needs to confirm that a Contact trigger works correctly without changing the organization's data.

What should the developer do to test the Contact trigger?

Options:

Use Deploy from the VSCode IDE co deploy an 'insert Contact' Apex class.

Use the New button on the Salesforce Contacts Tab to create a new Contact record.

Use the Test menu on the Developer Console to run oil test classes for the Contact trigger.

Use the Open Execute Anonymous feature on the Developer Console to run an "insert Contact' DML statement.

Expert Solution

Questions # 46:

Where are two locations a developer can look to find information about the status of batch or future methods?

Choose 2 answers

Options:

Developer Console

Apex Jobs

Paused Flow Interviews component

Apex Flex Queue

Expert Solution

Questions # 47:

Universal Containers (UC) wants to lower its shipping cost while making the shipping process more efficient. The Distribution Officer advises UC to implement global addresses to allow multiple Accounts to share a default pickup address. The developer is tasked to create the supporting object and relationship for this business requirement and uses the Setup Menu to create a custom object called "Global Address".

Which field should the developer add to create the most efficient model that supports the business need?

Options:

Add a master-detail field on the Global Address object to the Account object.

Add a lookup field on the Global Address object to the Account object.

Add a lookup field on the Account object to the Global Address object.

Add a master-detail field on the Account object to the Global Address object.

Expert Solution

Questions # 48:

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?

Options:

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

@track(getAccounts, '$searchTerm')

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

@wire(getAccounts, '$searchTerm')

Expert Solution

Answer

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), , ]

Questions # 49:

The sales management team at Universal Containers requires that the Lead Source field of the Lead record be populated when a Lead is converted What should be done to ensure that a user populates the Lead Source field prior to converting a Lead?

Options:

Create an after trigger on Lead.

Use Lead Conversion field mapping.

Use a formula field.

Use a validation rule.

Expert Solution

Questions # 50:

What is the result of the following code?

Question # 50

Options:

The record will not be created and an exception will be thrown.

The record will not be created and no error will be reported.

The record will be created and no error will be reported.

The record will be created and a message will be in the debug log.

Expert Solution

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