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Salesforce DEX-450 certification exam covers a range of topics related to programmatic development using Apex and Visualforce in Lightning Experience. DEX-450 exam tests your knowledge of Apex classes, triggers, controllers, Visualforce pages, components, and more. Additionally, the exam covers advanced topics such as testing and debugging, security, and performance optimization. Passing DEX-450 exam requires a thorough understanding of these topics and the ability to apply them in real-world scenarios.
Reference: https://trailhead.salesforce.com/en/academy/classes/dex450-build-applications-programmatically-on-the-salesforce-platform/
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To earn the Salesforce DEX-450 certification, candidates must pass a 60-question multiple-choice exam within 120 minutes. DEX-450 exam is designed to test the candidate’s knowledge and skills across various areas of programmatic development on the Salesforce platform. Candidates are expected to have a strong understanding of Apex programming language, Visualforce framework, and Lightning Experience. Additionally, candidates must be able to demonstrate their ability to build custom applications and integrate external systems using Apex and Visualforce. The Salesforce DEX-450 certification is a valuable credential that can help developers advance their career and increase their earning potential.
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Salesforce DEX-450 Exam Syllabus Topics:
| Section | Weight | Objectives |
| Data Modeling and Management | 20% | - Custom objects, fields, and relationships
- 1. Formula and roll-up summary fields
- 2. Record types and business processes
|
| Apex Programming Fundamentals | 25% | - Apex syntax, data types, and control structures
- 1. Apex transactions and execution context
- 2. Governor limits and multi-tenant considerations
|
| Visualforce Development | 15% | - Page creation and standard controllers
- 1. Integrating Visualforce with Lightning Experience
- 2. Custom controllers and controller extensions
|
| 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. Relationship queries and parent-child traversal
- 2. DML operations and error handling
|