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Salesforce DEX-450 certification exam is divided into two parts: a multiple-choice exam and a hands-on programming assignment. The multiple-choice exam consists of 60 questions and has a time limit of 105 minutes. The hands-on programming assignment requires the candidate to develop a solution to a real-world business problem using Apex and Visualforce in Lightning Experience. The programming assignment is evaluated by a team of Salesforce experts who assess the candidate's ability to design, develop, and deploy a solution that meets the business requirements.

The DEX-450 certification exam consists of 60 multiple-choice questions that need to be completed within 105 minutes. To pass the exam, candidates need to score at least 65%. DEX-450 exam can be taken in-person at a testing center or remotely online.

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Salesforce DEX-450 exam is a great way for developers to prove their expertise in programmatic development using Apex and Visualforce in Lightning Experience. It validates an individual's understanding of the programming concepts, best practices, and techniques that are necessary for developing custom applications and automating business processes in Salesforce. Programmatic Development using Apex and Visualforce in Lightning Experience certification is a must-have for developers who want to advance their careers in the Salesforce ecosystem.

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

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