Salesforce CRT-450 - Salesforce Certified Platform Developer 1 (SP25)

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Total 204 questions

Question # 1

Given the following Anonymous block:

What should a developer consider for an environment that has over 10,000 Case records?

The transaction will succeed and changes will be committed.

The try-catch block will handle exceptions thrown by governor limits.

The transaction will fail due to exceeding the governor limit.

The try-catch block will handle any DML exceptions thrown,

Question # 2

A software company uses the following objects and relationships:

* Case: to handle customer support issues

* Defect__c: a custom object to represent known issues with the company's software

* Case Defect__c a junction object between Case and Defect __c to represent that a defect is a cause of a customer issue

Case and Defect__c have Private organization-wide defaults.

What should be done to share a specific Case_Defect__c record with a user?

Share the parent Cast record Defect_c records.

Share the parent Case and record_c record.

Share the parent Defect__c record.

Share the case_Defect_c record.

Question # 3

Universal Containers has implemented an order management application. Each Order can have one or more Order Line items. The Order Line object is related to the Order via a master-detail relationship. For each Order Line item, the total price is calculated by multiplying the Order Line item price with the quantity ordered.

What is the best practice to get the sum of all Order Line item totals on the Order record?

Roll-up summary field

Formula field

Apex trigger

Quick action

Question # 4

A custom Visualforce controller calls the ApexPages.addMessage() method, but no messages are rendering on the page.

Which component should be added to the Visualforce page to display the message?

Question # 5

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. Letâ€™s analyze the problem and each option systematically, referencing Salesforceâ€™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: â€œTo call an Apex method from a Lightning Web Component using @wire, the method must be static and annotated with @AuraEnabled(cacheable=true)â€ (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: â€œUse the $ prefix in the parameters object to indicate a reactive property, so the wired method is called when the propertyâ€™s value changesâ€ (Salesforce Lightning Web Components Developer Guide, Pass Parameters to Apex Methods)., Result: The wired property receives an object with data (the Apex methodâ€™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 LWCâ€™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: â€œPass parameters to an Apex method as a JavaScript object, using the $ prefix for reactive propertiesâ€ (Salesforce Lightning Web Components Developer Guide, Call Apex Methods)., Conclusion: Correct, as it uses the proper @wire syntax and parameter format., B. @track(getAccounts, '$searchTerm') , Syntax: Uses @track instead of @wire., Decorator: The @track decorator is used to make a property reactive, meaning the component re-renders when the property changes, but it does not wire the property to a data source like an Apex method. The Lightning Web Components Developer Guide states: â€œ@track is used to mark a property as reactive for re-rendering, but it does not fetch data from a serverâ€ (Salesforce Lightning Web Components Developer Guide, Reactive Properties)., Parameter: Passing getAccounts and '$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: â€œThe second argument to @wire for an Apex method must be an object mapping parameter names to valuesâ€ (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 '$searchTerm' as a single value does not map to the Apex methodâ€™s parameter name, causing the method to receive no value for searchTerm (or fail entirely). The Lightning Web Components Developer Guide notes: â€œParameter names in the object must match the Apex methodâ€™s parameter namesâ€ (Salesforce Lightning Web Components Developer Guide, Call Apex Methods)., Conclusion: Incorrect, as the parameter is not passed as a properly formatted object mapping to the Apex methodâ€™s parameter., Why Option A is Correct:, Option A is correct because:, It uses the @wire decorator to properly connect the getAccounts Apex method to an LWC property., It passes the searchTerm parameter in the correct format: { searchTerm: '$searchTerm' }, mapping the Apex methodâ€™s parameter to the LWCâ€™s reactive searchTerm property., The $searchTerm syntax ensures reactivity, so the getAccounts method is re-invoked when searchTerm changes, aligning with LWC best practices., This matches the standard syntax outlined in the Salesforce Lightning Web Components Developer Guide for wiring Apex methods with parameters., Example for Clarity:, Hereâ€™s how option A would be used in a complete LWC JavaScript file:, javascript, Copy, import { LightningElement, wire } from 'lwc';, import getAccounts from '@salesforce/apex/AccountController.getAccounts';, , export default class MyComponent extends LightningElement {, searchTerm = ''; // Reactive property for search term, , // Wire the getAccounts Apex method to a property, @wire(getAccounts, { searchTerm: '$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 questionâ€™s context., The questionâ€™s phrasing is clear, and the options align with typical LWC syntax patterns., References:, Salesforce Lightning Web Components Developer Guide: , â€œCall Apex Methodsâ€ section: Details the use of @wire to call Apex methods, including parameter passing., â€œPass Parameters to Apex Methodsâ€ section: Explains the { param: '$property' } syntax for reactive parameters., â€œReactive Propertiesâ€ section: Clarifies the role of @track (and why itâ€™s not applicable here).(Available at: https://developer.salesforce.com/docs/component-library/documentation/en/lwc/), Salesforce Apex Developer Guide: , â€œAuraEnabled Annotationâ€ 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 â€œUser Interfaceâ€: 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 # 6

An org has an existing flow that edits an Opportunity with an Update Records element. A developer must update the flow to also create a Contact and store the created Contactâ€™s ID on the Opportunity.

Which update must the developer make in the flow?

Add a new Update Records element.

Add a new Roll Back Records element.

Add a new Create Records element.

Add a new Get Records element.

Question # 7

Which three steps allow a custom Scalable Vector Graphic (SVG) to be included in a Lightning web component?

Choose 3 answers

Import the static resource and provide a JavaScript property for it.

Upload the SVG as a static resource.

Reference the import in the HTML template.

Import the SVG as a content asset file.

Reference the property in the HTML template.

Question # 8

While working in a sandbox, an Apex test fails when run in the Test Runner. However, executing the Apex logic in the Execute Anonymous window succeeds with no exceptions or errors.

Why did the method fail in the sandbox test framework but succeed in the Developer Console?

The test method does not use system. runAs to execute as a specific user.

The test method is calling an @future method.

The test method relies on existing data in the sandbox.

The test method has a syntax error in the code.

Question # 9

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?

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.

Question # 10

Which two are best practices when it comes to Aura component and application event handling?

Choose 2 answers

Try to use application events as opposed to component events.

Reuse the event logic in a component bundle, by putting the logic in the helper.

Use component events to communicate actions that should be handled at the application level.

Handle low-level events in the event handler and re-fire them as higher-level events.

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Salesforce CRT-450 - Salesforce Certified Platform Developer 1 (SP25)

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