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Salesforce DEX-450 certification exam covers a range of topics related to programmatic development using Apex and Visualforce in Lightning Experience. DEX-450 exam tests your knowledge of Apex classes, triggers, controllers, Visualforce pages, components, and more. Additionally, the exam covers advanced topics such as testing and debugging, security, and performance optimization. Passing DEX-450 exam requires a thorough understanding of these topics and the ability to apply them in real-world scenarios.

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

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

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

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

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