Salesforce PDI : Platform Developer I (PDI)

PDI real exams

Exam Code: PDI

Exam Name: Platform Developer I (PDI)

Updated: Oct 04, 2026

Q & A: 187 Questions and Answers

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About Salesforce PDI Exam

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The benefit in Obtaining the PDI Exam Certification

  • After completing the Salesforce Certified Platform Developer I certification Candidate becomes a solid, well-rounded Salesforce Certified Platform Developer I.
  • A candidate might have incredible IT skills. Employers that do the hiring need to make decisions based on limited information and as it always. When they view the official Salesforce Certified Platform Developer I certification, they can be guaranteed that a candidate has achieved a certain level of competence.
  • When an organization hiring or promotion an employee, then the decision is made by human resources. Now while Candidate may have an IT background, they do their decisions in a way that takes into record many different factors. One thing is candidates have formal credentials, such as the Salesforce Certified Platform Developer I.
  • If the Candidate has the desire to move up to a higher-paying position in an organization. This certification will help as always.

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

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Salesforce PDI Exam Syllabus Topics:

SectionWeightObjectives
Topic 1: Lightning Platform Architecture15%- Describe the Salesforce lifecycle and explain how updates and new features are delivered
- 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 architectural considerations when building Lightning components
Topic 2: Integration10%- Describe the capabilities and use cases for REST API and Batch API
- Describe when and how to use Salesforce Connect/External Objects
- Describe the capabilities of the Salesforce OAuth framework
- Describe the capabilities and use cases for Apex web services and callouts
Topic 3: 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
Topic 4: Salesforce Fundamentals10%- Describe the capabilities of the relationship types
- Design the data model based on business requirements
- Describe the capabilities of the Salesforce UI/Lightning Experience
- Describe the declarative configuration options available to customize the UI
- Given a scenario, identify the appropriate field type
- Identify the appropriate use case for a custom visualforce versus a standard Lightning component
- Describe the capabilities of the core CRM objects in Salesforce
Topic 5: User Interface13%- Describe how to use Salesforce standard events and custom events
- Describe the capabilities and use cases for lightning web components
- Describe the differences between and use cases for Visualforce and Lightning components
- Describe the programmatic capabilities of Visualforce and Lightning Component frameworks
- Given a scenario, describe how to expose Apex methods as Lightning Component events
Topic 6: Testing, Debugging, and Deployment14%- Describe the capabilities of Salesforce metadata and describe the use cases for change set deployment and package-based deployment
- Describe the capabilities and use cases for the Salesforce CLI and Developer Console
- Describe the use cases for Salesforce Edge and when to use sandbox vs. production environments
- 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
- Describe the frameworks and best practices for writing Apex code
Topic 7: Process Automation and Logic26%- Describe the capabilities and use cases for VisualFlow
- Describe the syntax of Apex classes and triggers
- Given a scenario, describe when and how to use Apex transaction control
- Describe the features of the Governor Limits and describe how to write efficient Apex code
- Describe the capabilities and use cases for the Lightning Flow
- Describe the capabilities and use cases for Apex managed sharing
- Describe the capabilities of Apex and the programmatic capabilities of the Lightning Platform
- Describe the key attributes of an Apex class
- Describe the features of the Salesforce exception handling mechanism
- Given a scenario, describe when and how to use formula fields, roll-up summary fields, and process automation features
- Describe the features of the sObject and Apex common library

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