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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Testing, Debugging, and Deployment | 15% | - Deployment tools (SFDX, Metadata API) - Test data strategies and mocking - Apex unit testing best practices - Debugging and performance profiling |
| Topic 2: Logic and Process Automation | 22% | - Dynamic Apex and SOQL/SOSL - Invocable Actions and Platform Events - Asynchronous Apex (Batch, Queueable, Future, Scheduled) - Advanced Apex programming |
| Topic 3: User Interface | 18% | - Lightning Data Service - Lightning Web Components (LWC) advanced features - Aura Components - Visualforce advanced controllers |
| Topic 4: Architecture | 18% | - Apex Enterprise Patterns - Design patterns and Apex trigger frameworks - Namespace and package management - Governor limits and bulkification |
| Topic 5: Integration | 15% | - External Services and Connect REST API - Named Credentials and authentication - Platform Events and Change Data Capture - REST and SOAP web services (Apex callouts) |
| Topic 6: Data Modeling | 12% | - Advanced object relationships and data modeling - Large data volumes considerations - External objects and data sources |
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NEW QUESTION # 55
A developer needs to store variables to control the style and behavior of a Lightning Web Component.
Which feature can be used to ensure that the variables are testable in both Production and all Sandboxes?
Answer: D
Explanation:
Custom metadata types are the best feature for storing variables that control style and behavior of a Lightning Web Component. Unlike custom settings, custom metadata is deployable and testable in both Production and all Sandboxes.
NEW QUESTION # 56
Refer to the component code and requirements below:
Requirements: 1. For mobile devices, the information should display in three rows. 2. For desktops and tablets, the information should display in a single row. Requirement 2 Is not displaying as desired. Which option has the correct component code to meet the requirements for desktops and tablets? A)
B)
C)
D)
Answer: D
Explanation:
To meet the requirements specified for displaying information differently on mobile devices versus desktops and tablets, the developer needs to use Lightning Layout and Lightning Layout Item components with appropriate size attributes to control the layout based on the form factor.
Option A is correct because it sets the size attribute to "12" for desktop and tablet devices, which tells the framework to take the full width of the container, resulting in a single row. For mobile devices, it defaults to full width, which will stack the layout items vertically, resulting in three rows.
Options B, C, and D are incorrect because they either do not set the correct size attributes for desktops and tablets or do not maintain the proper structure that would result in a single row for these devices.
Lightning Design System on Grid System: Lightning Grid System
Lightning Web Components Documentation on Layout Components: Layout Components
NEW QUESTION # 57
Given the following containment hierarchy:
What is the correct way to communicate the new value of a property named ''passthrough'' to my-parent-component if the property is defined within my-child-component?
A)
B)
C)
D)
Answer: D
Explanation:
To communicate a property change up a containment hierarchy in Lightning Web Components (LWC), the child component should dispatch a custom event with the detail of the change. The parent component listens for this event and handles it accordingly.
Option A is the correct method because it creates a new custom event with the detail property containing the new value of passthrough. This event is then dispatched, and the parent component can listen for this event to handle the updated value.
Options B, C, and D are incorrect because they either don't pass any data with the event or they don't use the detail object which is the standard way to pass data with custom events in LWC.
Lightning Web Components Developer Guide - Communicating with Events
NEW QUESTION # 58
A Salesforce developer is hired by a multi-national company to build a custom Lightning application that shows employees their employment benefits and earned commissions over time. The application must acknowledge and respect the user's locale context for dates, times, numbers, currency, and currency symbols.
When using Aura components, which approach should the developer implement to ensure the Lightning application complies with the user's locale?
Answer: D
Explanation:
The $Locale value provider should be used to ensure the Lightning application respects the user's locale for dates, times, numbers, currency, and currency symbols. This global value provider gives components access to locale formats and labels, which are automatically rendered according to the user's locale settings.
NEW QUESTION # 59
Consider the above trigger intended to assign the Account to the manager of the Account's region, Which two changes should a developer make in this trigger to adhere to best practices?
Answer: A,B
Explanation:
Moving the SOQL query outside the loop prevents it from being executed multiple times, which can lead to hitting governor limits. The last line updating the accountList is indeed needed to save the changes made to the Account records, so removing it is not recommended. Instead, the query should be moved outside the loop and records should be collected in a map for efficiency, which is not one of the provided options. Reference:
Apex Developer Guide - Best Practices for Apex
NEW QUESTION # 60
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