Salesforce PDI : Platform Developer I (PDI)

PDI real exams

Exam Code: PDI

Exam Name: Platform Developer I (PDI)

Updated: Aug 30, 2026

Q & A: 187 Questions and Answers

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About Salesforce PDI Exam

Certification Path

There is no prerequisite for this exam.

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Reference: https://trailheadacademy.salesforce.com/certificate/exam-platform-dev1---Plat-Dev-201

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Who should take the PDI Exam

Salesforce Certified Platform Developer I certification is an internationally-recognized validation that identifies persons who earn it as possessing skilled as a Salesforce Certified Platform Developer I. If a candidate wants significant improvement in career growth needs enhanced knowledge, skills, and talents. The Salesforce PDI Exam provides proof of this advanced knowledge and skill. If a candidate has knowledge of associated technologies and skills that are required to pass the Salesforce PDI Exam then he should take this exam.

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Salesforce PDI Exam Syllabus Topics:

SectionWeightObjectives
Integration10%- Describe the capabilities of the Salesforce OAuth framework
- Describe the capabilities and use cases for REST API and Batch API
- Describe the capabilities and use cases for Apex web services and callouts
- Describe when and how to use Salesforce Connect/External Objects
Data Modeling and Management12%- Describe the options for and considerations when importing and exporting data
- Describe the capabilities and use cases for external objects
- Given a set of business requirements, design and implement a schema for custom objects and relationships
User Interface13%- Describe how to use Salesforce standard events and custom events
- Describe the differences between and use cases for Visualforce and Lightning components
- Given a scenario, describe how to expose Apex methods as Lightning Component events
- Describe the programmatic capabilities of Visualforce and Lightning Component frameworks
- Describe the capabilities and use cases for lightning web components
Testing, Debugging, and Deployment14%- Describe the capabilities and use cases for the Salesforce CLI and Developer Console
- Describe the frameworks and best practices for writing Apex code
- Describe the use cases for Salesforce Edge and when to use sandbox vs. production environments
- Describe the capabilities of Salesforce metadata and describe the use cases for change set deployment and package-based deployment
- Describe the testing requirements for Salesforce and describe the use cases for various testing tools
- Given a scenario, identify appropriate tools for debugging and monitoring errors
Lightning Platform Architecture15%- Describe the Lightning Platform architecture and explain the MVC design pattern
- Describe the capabilities and use cases for the Lightning Framework and event-driven architecture
- Describe the Salesforce lifecycle and explain how updates and new features are delivered
- Describe the architectural considerations when building Lightning components
Process Automation and Logic26%- Describe the capabilities and use cases for the Lightning Flow
- Describe the capabilities and use cases for Apex managed sharing
- Describe the features of the sObject and Apex common library
- Describe the key attributes of an Apex class
- Given a scenario, describe when and how to use formula fields, roll-up summary fields, and process automation features
- Describe the syntax of Apex classes and triggers
- Describe the features of the Governor Limits and describe how to write efficient Apex code
- Describe the features of the Salesforce exception handling mechanism
- Given a scenario, describe when and how to use Apex transaction control
- Describe the capabilities and use cases for VisualFlow
- Describe the capabilities of Apex and the programmatic capabilities of the Lightning Platform
Salesforce Fundamentals10%- Given a scenario, identify the appropriate field type
- Describe the capabilities of the Salesforce UI/Lightning Experience
- Identify the appropriate use case for a custom visualforce versus a standard Lightning component
- Describe the declarative configuration options available to customize the UI
- Design the data model based on business requirements
- Describe the capabilities of the core CRM objects in Salesforce
- Describe the capabilities of the relationship types

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