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| Section | Weight | Objectives |
|---|---|---|
| Logic and Process Automation | 22% | - Asynchronous Apex (Batch, Queueable, Future, Scheduled) - Invocable Actions and Platform Events - Dynamic Apex and SOQL/SOSL - Advanced Apex programming |
| Integration | 15% | - REST and SOAP web services (Apex callouts) - Platform Events and Change Data Capture - External Services and Connect REST API - Named Credentials and authentication |
| Testing, Debugging, and Deployment | 15% | - Debugging and performance profiling - Deployment tools (SFDX, Metadata API) - Test data strategies and mocking - Apex unit testing best practices |
| User Interface | 18% | - Lightning Web Components (LWC) advanced features - Visualforce advanced controllers - Lightning Data Service - Aura Components |
| Architecture | 18% | - Apex Enterprise Patterns - Governor limits and bulkification - Design patterns and Apex trigger frameworks - Namespace and package management |
| Data Modeling | 12% | - External objects and data sources - Large data volumes considerations - Advanced object relationships and data modeling |
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問題 #142
A developer is writing a Jest test for a Lightning web component that conditionally displays child components based on a user's checkbox selections.
What should the developer do to properly test that the correct components display and hide for each scenario?
答案：B
解題說明：
To ensure that the DOM is clean before each test runs, the developer should use the afterEach() method to reset it. This is part of the setup and teardown process in Jest tests, which helps to avoid state leakage between tests. Reference:
Jest Globals afterEach
問題 #143
An Apex class does not achieve expected code coverage. The testsetup method explicitly calls a method In the Apex class..
How can the developer generate the code coverage?
答案：B
解題說明：
When an Apex class does not achieve the expected code coverage, it suggests that the test methods are not executing parts of the class. The @testvisible annotation can be used to increase code coverage by allowing test methods to access private or protected members of another class. This enables the test method to call methods that may not be directly accessible, but it is not a direct means to generate code coverage. The code coverage is actually achieved when the test methods execute the code within these methods. Therefore, to properly generate code coverage, the developer must ensure that the test methods call the relevant portions of the code that need to be covered. The use of @testvisible can facilitate this process by making otherwise inaccessible code available for testing.
Apex Developer Guide - Testing Best Practices
Apex Developer Guide - @testVisible Annotation
問題 #144
Universal Containers (UC) has enabled the translation workbench and has translated picklist values. UC has a custom multi-select picklist field, Product__c, on the Account object that allows sales reps to specify which of UC's products an Account already has. A developer is tasked with writing an Apex method that retrieves Account records, including the Product_c field.
What should the developer do to ensure the value of Products__c is in the current user's language?
答案：A
解題說明：
Using toLabel() in the SOQL query ensures that picklist values are returned in the user's language, which is necessary for organizations that have the translation workbench enabled.
Multi-language Solutions: [Salesforce Developer Guide](https://developer.salesforce.com/docs/atlas.en-us.soql_sosl.meta/soql_s
問題 #145
Universal Containers allows customers to log into a Salesforce Community and update their orders via a custom Visualforce page. Universal Containers' sales representatives can edit the orders on the same Visualforce page.
What should a developer use in an Apex test class to test that record sharing is enforced on the Visualforce page?
答案：A
解題說明：
The System.runAs() method is used in test classes to enforce record sharing. This method allows you to write test methods that change user contexts to ensure that the proper record sharing is enforced. Reference:
Understanding the runAs Method
問題 #146
As part of a custom interface, a developer team creates various new Lightning web components. Each of the components handles errors using toast messages. When the development is complete, all the components are added to the same Lightning page.
During acceptance testing, users complain about the long chain of toast messages that display when errors occur loading the components.
Which two techniques should the developer implement to improve the user experience?
Choose 2 answers
答案：B,D
解題說明：
The scenario describes a common issue when multiple components are used on the same Lightning page and each component manages its error handling independently, leading to a "long chain of toast messages" which can be overwhelming for users.
To improve user experience, the developers can implement the following techniques:
A . Use a Lightning web component to aggregate and display all errors: This method involves creating a centralized component responsible for handling all error messages. This component would receive error notifications from other components and then display them in a user-friendly manner. The benefit of this approach is that it provides a single, consistent interface for error messages, reducing the clutter and confusion that can be caused by multiple toasts.
D . Use public properties on each component to display the error messages: By using public properties, components can expose their error states to a parent or orchestrating component, which can then display these errors in a single, consolidated way. This avoids the issue of multiple toast notifications and allows for a more integrated error handling experience.
The other options presented are less ideal:
B . Using the window.alert() method is not recommended in a professional Salesforce environment as it is considered a disruptive way to show errors and does not align with the Salesforce Lightning design system.
C . Using a <template> tag to display in-place error messages could be a viable option for displaying error messages within the component itself, but it does not address the issue of multiple errors stacking up from different components as described in the scenario.
For building a centralized error handling component: Lightning Web Components Developer Guide - Error Handling For implementing public properties: Lightning Web Components Developer Guide - Public Properties
問題 #147
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