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Salesforce Platform Developer II Sample Questions (Q14-Q19):

NEW QUESTION # 14
A company has an Apex process that makes multiple extensive database operations and web service callouts. The database processes and web services can take a long time to run and must be run sequentially.
How should the developer write this Apex code without running into governor limits and system limitations?

Answer: C

Explanation:
Queueable Apex is a way of running asynchronous Apex code that can handle complex, long-running processes. Queueable Apex can perform multiple extensive database operations and web service callouts without hitting the governor limits and system limitations. Queueable Apex can also chain the jobs to run sequentially, by implementing the Queueable interface and using the System.enqueueJob method. By using Queueable Apex, the developer can write the Apex code that can execute the processes in the background, in the order they are enqueued, and handle any errors or failures gracefully. Reference: [Queueable Apex], [Chain Jobs Using Queueable Apex]


NEW QUESTION # 15
A company recently deployed a Visualforce page with a custom controller that has a data grid of information about Opportunities in the org.
Users report that they receive a ''Maximum view state size limit'' error message under certain conditions.
According to Visualforce best practice, which three actions should the developer take to reduce the view state?
Choose 3 answers

Answer: B,D,E


NEW QUESTION # 16
A developer created an Apex class that makes outbound RESTful callout. The following was created to send a fake response in Apex test methods.

Which method can be called to return this fake response in the test methods?

Answer: A


NEW QUESTION # 17
Universal Containers wants to use a Customer Community with Customer Community Plus licenses so their customers can track how many containers they are renting and when they are due back. Many of their customers are global companies with complex Account hierarchies, representing various departments within the same organization. One of the requirements is that certain community users within the same Account hierarchy be able to see several departments' containers, based on a junction object that relates the Contact to the various Account records that represent the departments.
Which solution solves these requirements?

Answer: C


NEW QUESTION # 18
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?

Answer: A,C

Explanation:
The current Apex controller implementation contains a type mismatch between the data being sent from the JavaScript controller and the data type expected by the Apex method. In the JavaScript file, this.firstName is initialized as the string 'world'. When the serverEcho method is invoked, it passes this string value under the key firstName.
In the Apex Controller, the parameter is incorrectly defined as an sObject. Because the JavaScript is passing a simple string, the Apex method signature must be updated to accept a String (Option B). Consequently, line
06-which attempts to use the .get() method (a method specific to sObjects)-is no longer valid and should be removed. Instead, the developer should directly use the firstName variable in the return statement (Option C).
Option A is incorrect because @AuraEnabled is a method-level annotation, not a class-level one. Option D is incorrect because public static is the sufficient and standard access modifier for Apex methods exposed to Lightning components; global is only necessary if the component resides in a different namespace (such as in a managed package). By aligning the data types between the two layers, the serialization process can correctly map the JavaScript string to the Apex string variable.


NEW QUESTION # 19
......

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