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

"Programmatic Development using Apex and Visualforce in Lightning Experience", also known as DEX-450 exam, is a Salesforce Certification. With the complete collection of questions and answers, UpdateDumps has assembled to take you through 202 Q&As to your DEX-450 Exam preparation. In the DEX-450 exam resources, you will cover every field and category in Salesforce Developer Certification helping to ready you for your successful Salesforce Certification.

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  • Updated on: Aug 18, 2026
  • No. of Questions: 202 Questions & Answers

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  • Updated on: Aug 18, 2026
  • No. of Questions: 202 Questions & Answers

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

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Salesforce DEX-450 Exam Syllabus Topics:

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

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