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Salesforce DEX-450 Exam Syllabus Topics:

SectionObjectives
Database and SOQL/SOSL- SOQL queries
  • 1. Basic and advanced query filtering
    • 2. Relationship queries
      - DML operations
      • 1. Bulk operations and limits
        • 2. Insert, update, delete, upsert
          Visualforce Development- Pages and controllers
          • 1. Custom controllers and extensions
            • 2. Standard controllers
              - UI components
              • 1. Visualforce components and expressions
                Apex Triggers and Automation- Order of execution
                • 1. Salesforce transaction lifecycle
                  - Trigger design patterns
                  • 1. Bulkified trigger design
                    • 2. Before and after triggers
                      Security and Best Practices- Governor limits
                      • 1. Avoiding limit exceptions
                        - Security model
                        • 1. CRUD and FLS enforcement
                          • 2. Sharing rules and with sharing keyword
                            Apex Programming Fundamentals- Collections and data handling
                            • 1. Lists, Sets, and Maps
                              • 2. Iteration and data manipulation
                                - Apex syntax and object-oriented concepts
                                • 1. Classes, methods, and variables
                                  • 2. Access modifiers and encapsulation
                                    Testing and Debugging- Apex testing framework
                                    • 1. Test classes and methods
                                      • 2. Code coverage requirements
                                        - Debugging techniques
                                        • 1. System debug logs

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