Try Salesforce : DEX-450日本語 valid & accurate questions and answers

Last Updated: Aug 17, 2026

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

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

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

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

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

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Salesforce DEX-450日本語 Exam Syllabus Topics:

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