Salesforce PDII echte frage : Platform Developer II

Refer to the code below:
Lightning Web Component JS file
JavaScript
import {LightningElement} from 'lwc';
import serverEcho from '@salesforce/apex/SimpleServerSideController.serverEcho'; export default class Helloworld extends LightningElement { firstName = 'world'; handleClick() { serverEcho({ firstName: this.firstName
})
.then((result) => {
alert('From server: ' + result);
})
.catch((error) => {
console.error(error);
});
}
}
Apex Controller
Java
public with sharing class SimpleServerSideController {
@AuraEnabled
public static String serverEcho(sObject firstName) {
String firstNameStr = (String)firstName.get('firstName');
return ('Hello from the server, ' + firstNameStr);
}
}
Given the code above, which two changes need to be made in the Apex Controller for the code to work?

• A. Remove line 06 from the Apex Controller and instead use firstName in the return on line 07.
• B. Annotate the entire class as @AuraEnabled instead of just the single method.
• C. Change the method signature to be global static, not public static.
• D. Change the argument in the Apex Controller line 05 from sObject to String.

What are three reasons that a developer should write Jest tests for Lightning web components?

• A. To test basic user interaction
• B. To verify that events fire when expected
• C. To verify the DOM output of a component
• D. To test how multiple components work together
• E. To test a component's non-public properties

An org records customer order information in a custom object, Order__c, that has fields for the shipping address. A developer is tasked with adding code to calculate shipping charges on an order, based on a flat percentage rate associated with the region of the shipping address. What should the developer use to store the rates by region, so that when the changes are deployed to production no additional steps are needed for the calculation to work?3132

• A. Custom object3738
• B. Custom hierarchy setting3940
• C. Custom metadata type3334
• D. Custom list setting3536

An Apex trigger creates a Contract record every time an Opportunity is marked as Closed/Won. Historical records need to be loaded, but Contract records should not be created during this mass load. What is the most extendable way to update the Apex trigger to accomplish this?

• A. Use a hierarchy custom setting to skip executing the logic inside the trigger for the user who loads the data.
• B. Add the Profile ID of the user who loads the data to the trigger.
• C. Add a validation rule to the Contract to prevent creation by the data load user.
• D. Use a list custom setting to disable the trigger for the user who loads the data.

A developer needs to implement a system audit feature that allows users, assigned to a custom profile named
"Auditors", to perform searches against the historical records in the Account object. The developer must ensure the search is able to return history records that are between 6 and 12 months old. Given the code below, which select statement should be inserted as a valid way to retrieve the Account History records?4445 Java Date initialDate = System.Today().addMonths(-12); Date endDate = System.Today().addMonths(-6);
// Insert SELECT statement here

• A. [SELECT AccountId, CreatedDate, Field, NewValue, OldValue FROM AccountHistory WHERE CreatedDate BETWEEN :initialDate AND :endDate];
• B. [SELECT AccountId, CreatedDate, Field, NewValue, OldValue FROM Account_History WHERE CreatedDate >= :endDate AND CreatedDate <= :initialDate];
• C. [SELECT AccountId, CreatedDate, Field, NewValue, OldValue FROM Account_History WHERE CreatedDate <= :initialDate AND CreatedDate <= :endDate];
• D. [SELECT AccountId, CreatedDate, Field, NewValue, OldValue FROM AccountHistory WHERE CreatedDate => :initialDate AND CreatedDate <= :endDate];