PD1 Practice Test PDF 2026 June: Free Salesforce Platform Developer I Questions

PD1 Practice Test PDF: Salesforce Certified Platform Developer I

The Salesforce Certified Platform Developer I (PD1) credential validates your ability to build and deploy custom applications on the Salesforce platform using Apex, Visualforce, and Lightning Web Components. It is one of the most sought-after developer certifications in the Salesforce ecosystem, demonstrating mastery of the platform's programming model, data layer, security architecture, and developer toolchain.

This PD1 practice test PDF gives you a structured way to study the six core exam domains offline. The questions mirror the format and difficulty of the actual Salesforce PD1 exam — 60 multiple-choice and multi-select questions, 105-minute time limit, 68% passing score. Whether you are preparing for your first attempt or reinforcing knowledge gaps before a retake, drilling through these questions before sitting the exam is one of the most efficient study methods available.

Salesforce Data Model and Object-Oriented Programming

The PD1 exam tests your understanding of Salesforce's data model — standard objects, custom objects, relationships (lookup, master-detail, many-to-many junction objects), and schema design. You must know how field types behave, how relationship traversal works in SOQL, and how schema changes affect deployed code.

On the OOP side, questions target class structure, access modifiers (public, private, protected, global), inheritance, interfaces, and the use of virtual and abstract classes in Apex. Understanding when to use an interface versus an abstract class, and how Apex enforces strict typing, is tested directly. You also need to know how collections — List, Set, Map — are used in practice and why bulkification matters for large data operations.

Apex Programming: Triggers, SOQL, and DML

Apex is the centerpiece of PD1. The exam covers trigger context variables (Trigger.new, Trigger.old, Trigger.isInsert, Trigger.isBefore, and others), the one-trigger-per-object best practice, and how to write handler classes that separate trigger logic from business logic. You must understand the order of execution on a Salesforce record save — validation rules, before triggers, system validation, after triggers, workflow rules, and so on.

SOQL (Salesforce Object Query Language) questions cover query syntax, filtering with WHERE clauses, aggregate functions (COUNT, SUM, AVG, GROUP BY), parent-to-child and child-to-parent relationship queries, and governor limits (50,000 rows per transaction, 100 SOQL queries per synchronous context). DML operations — insert, update, upsert, delete, undelete, merge — must be used in a bulkified pattern. Putting DML or SOQL inside a loop is one of the most commonly tested governor-limit violations.

Visualforce, Lightning Web Components, and UI Development

Visualforce questions cover the MVC architecture, standard and custom controllers, controller extensions, getter/setter methods, and the apex:pageBlockTable and apex:repeat components. You need to understand how Visualforce pages are bound to Apex controller properties and how the view state works in terms of performance and size limits.

Lightning Web Components (LWC) has become the dominant UI framework on the platform. PD1 tests the component lifecycle (connectedCallback, renderedCallback, disconnectedCallback), reactive properties (@track and @api), event communication between parent and child components, wire adapters for declarative Apex calls (@wire), and the use of imperative Apex when reactive wire is insufficient. You should understand when to use LWC versus Aura components and the differences in their programming models.

Testing, Debugging, Salesforce Security Model, and Developer Tools

Every Apex deployment requires a minimum 75% code coverage across all classes and triggers. PD1 tests how to write effective unit tests: using Test.startTest() and Test.stopTest() to reset governor limits, creating test data with @TestSetup methods, using System.assertEquals() and System.assertNotEquals(), and mocking external callouts with HttpCalloutMock. Tests must be data-independent — they cannot rely on existing org data.

The security model section covers profiles (which define baseline permissions), permission sets (which grant additive access), sharing rules (owner-based and criteria-based), organization-wide defaults (OWD), role hierarchy, manual sharing, and Apex-managed sharing. You need to understand the difference between record-level access and field-level security, and how With Sharing, Without Sharing, and Inherited Sharing keywords affect data visibility in Apex code.

Developer tools tested include the Developer Console (anonymous Apex execution, log levels, query editor), Salesforce CLI and VS Code with the Salesforce Extension Pack, scratch orgs and sandboxes (types: Developer, Developer Pro, Partial, Full), change sets versus Salesforce DX source-tracking deployments, and how metadata is structured in the sfdx project format.

Take the Full PD1 Practice Test Online

The PDF is ideal for offline study, but the PD1 practice test on PracticeTestGeeks gives you a timed, interactive exam environment that closely mirrors the real testing experience. Work through both formats — offline drilling for concept retention, online testing for time management and exam pacing. Combining both methods gives you the strongest preparation before you schedule your official Salesforce PD1 exam.