Salesforce DEX-450 valid study dumps : Programmatic Development using Apex and Visualforce in Lightning Experience

  • Exam Code: DEX-450
  • Exam Name: Programmatic Development using Apex and Visualforce in Lightning Experience
  • Updated: Aug 01, 2026
  • Q&As: 202 Questions and Answers

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About Salesforce Programmatic Development using Apex and Visualforce in Lightning Experience - DEX-450 Valid Dumps

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DEX-450 exam dumps

How to book the Salesforce DEX-450 Exam

There are the following steps for registering the Salesforce DEX-450 exam:

Step 1: Visit Salesforce Exam Registration Step 2: Signup/Login to Salesforce account Step 4: Select Date, time and confirm with the payment method

Reference: https://trailhead.salesforce.com/en/academy/classes/dex450-build-applications-programmatically-on-the-salesforce-platform/

What is the duration, language, and format of Salesforce DEX-450 Exam

  • There is a time limit of 120 minutes for the exam.
  • Passing score 80%
  • Certification Validity period : 3 years.
  • This exam is offered in only English.
  • The type of questions is Multiple Choice and situation-based questions.
  • This exam consists of 85 questions

The validity of the Salesforce DEX-450 certification is three years.

Salesforce DEX-450 Exam Syllabus Topics:

SectionObjectives
Topic 1: Apex Triggers and Automation- Trigger design patterns
  • 1. Bulkified trigger design
    • 2. Before and after triggers
      - Order of execution
      • 1. Salesforce transaction lifecycle
        Topic 2: Visualforce Development- Pages and controllers
        • 1. Standard controllers
          • 2. Custom controllers and extensions
            - UI components
            • 1. Visualforce components and expressions
              Topic 3: Database and SOQL/SOSL- SOQL queries
              • 1. Relationship queries
                • 2. Basic and advanced query filtering
                  - DML operations
                  • 1. Insert, update, delete, upsert
                    • 2. Bulk operations and limits
                      Topic 4: Security and Best Practices- Security model
                      • 1. CRUD and FLS enforcement
                        • 2. Sharing rules and with sharing keyword
                          - Governor limits
                          • 1. Avoiding limit exceptions
                            Topic 5: Apex Programming Fundamentals- Apex syntax and object-oriented concepts
                            • 1. Classes, methods, and variables
                              • 2. Access modifiers and encapsulation
                                - Collections and data handling
                                • 1. Lists, Sets, and Maps
                                  • 2. Iteration and data manipulation
                                    Topic 6: 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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