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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: User Interface Development | 15% | - Lightning Web Components development - Component communication and reusability - Aura Components advanced usage - Visualforce advanced features |
| Topic 2: Advanced Developer Fundamentals | 15% | - Sharing and security model implementation - System classes and utility methods - Localization and internationalization - Advanced Apex coding best practices |
| Topic 3: Testing, Debugging and Deployment | 18% | - Deployment strategies and tools - Continuous integration and delivery - Advanced testing techniques - Debugging and error handling |
| Topic 4: Business Logic and Process Automation | 25% | - Advanced triggers and Apex logic - Asynchronous processing (Batch, Queueable, Future) - Custom metadata and settings - Governor limits and performance optimization |
| Topic 5: Integration and Web Services | 15% | - External objects and data sources - Data integration patterns - API usage and limits - REST and SOAP integrations |
| Topic 6: Data Modeling and Management | 12% | - Data validation and consistency - Large data volume handling - Complex data modeling - SOQL and SOSL optimization |
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NEW QUESTION # 16
A developer created a Lightning web component that uses a lightning-record-edit-form to collect information about Leads. Users complain that they only see one error message at a time about their input when trying to save a Lead record.
What is the recommended approach to perform validations on more than one field, and display multiple error messages simultaneously with minimal JavaScript intervention?
Answer: A
Explanation:
The recommended approach to perform validations on more than one field, and display multiple error messages simultaneously with minimal JavaScript intervention is to use an external JavaScript library. An external JavaScript library is a collection of reusable code that can provide additional functionality and features to the Lightning web component. The developer can use an external JavaScript library that supports form validation, such as jQuery Validation or Parsley.js, and import it into the Lightning web component. The developer can then use the library's methods and options to define the validation rules and messages for each field, and to display the errors on the component. Using a try/catch/finally block will not help, as it is used to handle exceptions and errors in the code, but it does not perform validations on the fields or display error messages. Using validation rules will not help, as they are used to enforce data quality and integrity on the server side, but they do not perform validations on the client side or display error messages on the component. Using an Apex trigger will not help, as it is used to execute logic before or after a record is inserted, updated, deleted, or undeleted, but it does not perform validations on the client side or display error messages on the component. Reference: [Use Third-Party JavaScript Libraries], [Lightning Web Components Developer Guide]
NEW QUESTION # 17
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: C
NEW QUESTION # 18
A company notices that their unit tests in a test class with many methods to create many records for prerequisite reference data are slow.
What can a developer to do address the issue?
Answer: C
NEW QUESTION # 19
Universal Containers is leading a development team that follows the source-driven development approach in Salesforce. As part of their continuous integration and delivery (CL/CD) process, they need to automatically deploy changes to multiple environments, including sandbox and production.
'Which mechanism or tool would best support their CI/CD pipeline in source-driven development?
Answer: D
Explanation:
Salesforce CLI with Salesforce DX supports source-driven development and is designed for continuous integration and delivery (CI/CD) processes. It enables developers to automate deployments across multiple environments, including sandbox and production.References: Salesforce DX Developer Guide
NEW QUESTION # 20
Which interface needs to be implemented by a Lightning Component so that it may be displayed in modal dialog by clicking a button on a Lightning Record page?
Answer: B
NEW QUESTION # 21
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