Salesforce DEX-450 : Programmatic Development using Apex and Visualforce in Lightning Experience

  • Exam Code: DEX-450
  • Exam Name: Programmatic Development using Apex and Visualforce in Lightning Experience
  • Updated: Aug 05, 2026
  • Q & A: 202 Questions and Answers

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About Salesforce DEX-450 Exam Questions

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Introduction to Salesforce DEX-450 Exam

This qualification concentrates on the programmer's validation of abilities, such as the programming of programs. Salesforce DEX-450 certification acknowledges that the applicant has the potential to conform his / her Salesforce applications to the heart of the Pinnacle programming language and the visual power diagram. The credential offers a better indicator of the competences which you have established to provide prospective employers. Professionals need to gain functional expertise in constructing and programming data objects (sObjectiles) to retrieve, modify and store data from these objects. Specify custom logic with Apex triggers and classes and use the built-in testing system to test this logic. This Guide covers all facets of the DEX-450 Test, the salary of the accredited specialist Salesforce DEX-450 and all the aspects of the Salesforce DEX-450 certification.

The Salesforce DEX-450 exam is a competency qualification test that acknowledges your capability growth. You need industry expertise to attempt the test. Professionals should execute the following duties following certification:

  • Write customizations of business logic using triggers and classes from Apex. SOQL and DML are used with these customizations.
  • Using a declarative GUI to build and change subjects
  • Develop programmatic implementations that benefit from declarative personalizations
  • Describe how the trigger code functions in the Save Execution Order
  • Describe a range of the main features of multi-tenant programme architecture
  • Using the combined Apex and Visual Powers evaluation system.
  • Write Visualforce and code for user interface setup

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

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

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

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

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Average Salary for Salesforce DEX-450 Exam Certified Professional

Salesforce administrator roles are in great demand nowadays. The average salaries of Salesforce DEX-450 exam Certified professional in:

  • India - 16,42,330 INR
  • England - 70,400 POUND
  • Europe - 72,300 Euro
  • United State - 105,100 USD

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Salesforce DEX-450 Exam Syllabus Topics:

SectionWeightObjectives
Topic 1: Apex Classes, Triggers, and Execution20%- Class structure, methods, and access modifiers
  • 1. Static variables and platform events
  • 2. Trigger types, context variables, and save order of execution
Topic 2: Data Retrieval and Manipulation20%- SOQL and SOSL queries
  • 1. Relationship queries and parent-child traversal
  • 2. DML operations and error handling
Topic 3: Apex Programming Fundamentals25%- Apex syntax, data types, and control structures
  • 1. Governor limits and multi-tenant considerations
  • 2. Apex transactions and execution context
Topic 4: Visualforce Development15%- Page creation and standard controllers
  • 1. Custom controllers and controller extensions
  • 2. Integrating Visualforce with Lightning Experience
Topic 5: Data Modeling and Management20%- Custom objects, fields, and relationships
  • 1. Formula and roll-up summary fields
  • 2. Record types and business processes

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