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

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

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

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

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

Ctheirse Outline:

The DEX-450 Programmatic Development using Apex and Visualforce in Lightning Experience ctheirse 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 Theyb Components

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

Exam Objectives:

The objectives of the DEX-450 test 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 theyb services using Apex.
5. Best practices for programmatic development in Salesforce.

Exam Syllabus:

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

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