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Salesforce DEX-450 Certification Exam is a proctored exam that comprises 60 multiple-choice questions which must be completed within 105 minutes. DEX-450J exam is divided into two sections; the first section has 20 questions on Apex programming language, and the second section has 40 questions on Visualforce and Lightning Experience. DEX-450J exam is designed to test your knowledge of Salesforce development concepts, including Apex classes, triggers, Visualforce controllers, and Lightning components.
Reference: https://trailhead.salesforce.com/en/academy/classes/dex450-build-applications-programmatically-on-the-salesforce-platform/
Salesforce DEX-450 certification is recognized globally and is highly valued in the industry. It demonstrates that the certified professional has the knowledge and skills required to build custom applications on the Salesforce platform using Apex and Visualforce. Salesforce Programmatic Development using Apex and Visualforce in Lightning Experience Exam (DEX-450日本語版) certification also demonstrates that the professional is committed to keeping up-to-date with the latest developments in the Salesforce platform.
Salesforce DEX-450日本語 Exam Syllabus Topics:
| Section | Weight | Objectives |
| Visualforce Development | 15% | - Page creation and standard controllers
- 1. Integrating Visualforce with Lightning Experience
- 2. Custom controllers and controller extensions
|
| Data Modeling and Management | 20% | - Custom objects, fields, and relationships
- 1. Formula and roll-up summary fields
- 2. Record types and business processes
|
| Apex Classes, Triggers, and Execution | 20% | - Class structure, methods, and access modifiers
- 1. Static variables and platform events
- 2. Trigger types, context variables, and save order of execution
|
| Data Retrieval and Manipulation | 20% | - SOQL and SOSL queries
- 1. DML operations and error handling
- 2. Relationship queries and parent-child traversal
|
| Apex Programming Fundamentals | 25% | - Apex syntax, data types, and control structures
- 1. Governor limits and multi-tenant considerations
- 2. Apex transactions and execution context
|