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| Section | Weight | Objectives |
|---|---|---|
| Logic and Process Automation | 22% | - Dynamic Apex and SOQL/SOSL - Advanced Apex programming - Invocable Actions and Platform Events - Asynchronous Apex (Batch, Queueable, Future, Scheduled) |
| Integration | 15% | - Named Credentials and authentication - External Services and Connect REST API - REST and SOAP web services (Apex callouts) - Platform Events and Change Data Capture |
| Data Modeling | 12% | - Large data volumes considerations - External objects and data sources - Advanced object relationships and data modeling |
| Testing, Debugging, and Deployment | 15% | - Deployment tools (SFDX, Metadata API) - Debugging and performance profiling - Apex unit testing best practices - Test data strategies and mocking |
| Architecture | 18% | - Governor limits and bulkification - Namespace and package management - Design patterns and Apex trigger frameworks - Apex Enterprise Patterns |
| User Interface | 18% | - Aura Components - Lightning Data Service - Lightning Web Components (LWC) advanced features - Visualforce advanced controllers |
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NEW QUESTION # 187
A developer is writing code that requires making callouts to an external web service.
Which scenario necessitates that the callout be made in an asynchronous method?
Answer: B
Explanation:
Callouts cannot be made from a synchronous context such as an Apex trigger because they might exceed the maximum execution time, leading to timeouts. Asynchronous methods, such as future or Queueable, are required to handle callouts from triggers.
NEW QUESTION # 188
Consider the Apex controller below, that is called from an Aura component.
What is wrong with this code?
Answer: B
Explanation:
The method defined in the Apex class must be static to be used as an Aura-enabled method. Aura-enabled methods need to be static because they are called by the Lightning framework without instantiating the class.
NEW QUESTION # 189
What is a benefit of JavaScript remoting over Visualforce Remote Objects?
Answer: C
Explanation:
JavaScript remoting in Visualforce allows for the execution of complex server-side application logic without the need to refresh the entire page, providing a more dynamic user experience. It supports more complex operations than Visualforce Remote Objects, which are intended for basic CRUD operations.
NEW QUESTION # 190
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: A
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 # 191
An org has an existing process, built using Process Builder, on Opportunity that sets a custom field, CommissionBaseAmount__c, when an Opportunity is edited and the Opportunity's Amount changes.
A developer recently deployed an Opportunity before update trigger that uses the CommissionBaseAmount__c and complex logic to calculate a value for a custom field, CommissionAmount__c, when an Opportunity stage changes to Closed/Won.
Users report that when they change the Opportunity to Closed/Won and also change the Amount during the same save, the CommissionAmount__c is incorrect.
Which action should the developer take to correct this problem?
Answer: A
Explanation:
The issue described is likely due to the order of execution in Salesforce, where processes in Process Builder run after all before triggers. If the Opportunity's Amount is changed and the CommissionBaseAmount__c is set by Process Builder, the trigger that calculates CommissionAmount__c may not see the updated value if it operates before the process.
Replacing the process with a before-save record-triggered flow (formerly known as Fast Field Update) would ensure that CommissionBaseAmount__c is updated before the trigger runs. In a before-save flow, field updates occur before any Apex before update triggers fire, which means the trigger would have the updated value of CommissionBaseAmount__c to use in its calculation.
eferences:
Order of Execution in Salesforce
Before-Save Record-Triggered Flows
NEW QUESTION # 192
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