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Exam Details for DEX-450 Programmatic Development using Apex and Visualforce in Lightning Experience:

Number of Questions: The exam typically consists of multiple-choice questions- with a total of approximately 60 questions.

Time Limit: The total time allocated for the exam is usually 105 minutes.

Passing Score: The passing score for the exam varies- but it is generally set around 65% or higher.

Exam Format: The exam is usually conducted in a proctored environment- either in-person or online.

Course Outline:

The DEX-450 Programmatic Development using Apex and Visualforce in Lightning Experience course covers the following key areas:

1. Apex Development:
- Introduction to Apex programming language
- Apex syntax- data types- and variables
- Control statements and loops in Apex
- Exception handling and error management
- Apex triggers and trigger context variables
- Apex classes and object-oriented programming
- Apex unit testing and code coverage

2. Visualforce Development:
- Introduction to Visualforce framework
- Visualforce markup and components
- Controller classes and controller extensions
- Standard and custom Visualforce controllers
- Visualforce binding and expression language
- Visualforce page navigation and actions
- Visualforce component development

3. Lightning Component Development:
- Introduction to Lightning Component Framework
- Lightning component architecture and design principles
- Component markup and styling
- Lightning Data Service and data access
- Component communication and event handling
- Lightning Aura components vs. Lightning Web Components

4. Integration and Web Services:
- Apex integration with external systems
- Web service callouts and SOAP/REST integration
- Integration patterns and best practices
- Authentication and security considerations

Exam Objectives:

The objectives of the DEX-450 exam are to assess the candidate's understanding of the following:

1. Apex programming language and its features.
2. Visualforce framework and component development.
3. Lightning Component Framework and component development.
4. Integration and web services using Apex.
5. Best practices for programmatic development in Salesforce.

Exam Syllabus:

The exam syllabus for DEX-450 includes the following topics:

1. Apex Development
2. Visualforce Development
3. Lightning Component Development
4. Integration and Web Services