Salesforce Platform Developer (PD I): 360 Practice Questions

This course contains the use of artificial intelligence.

Knowing a programming language is only part of Salesforce development. You also need to choose between a formula, Flow and Apex, understand what happens inside a save transaction, and keep a custom interface from exposing data its user cannot access.

These 360 original practice questions help you work through those decisions with explanations for every answer choice. The course follows the four domains of the Salesforce Certified Platform Developer exam, commonly called Platform Developer I or PD1. The official guide checked in October 2026 states a Summer '25 exam baseline; this course does not claim a newer seasonal exam version. Questions that explore API 67.0 security defaults are explicitly identified as current-practice extensions.

Your six practice sets

• Developer Fundamentals: 60 questions on platform architecture, implementation choices, data relationships and developer AI assistance.
• Apex, Queries and Transaction Logic: 84 questions on language behavior, SOQL/SOSL, DML, triggers, limits, exceptions and Flow/Apex collaboration.
• Secure User Interfaces and Component Contracts: 60 questions on LWC, Flow, Visualforce and server-side access controls.
• Testing, Debugging and Deployment: 36 questions on reliable tests, tools, monitoring and deployment requirements.
• Full Mock 1: 60 mixed questions with a 105-minute timer.
• Full Mock 2: 60 different mixed questions with a 105-minute timer.

Both mocks approximate the published 27%/28%/25%/20% domain weights with 16/17/15/12 questions. They omit the exam's possible additional unscored questions and use a 68% practice target. The four focused sets use learning timers and an 80% revision target; they are not full exam simulations.

Make each attempt useful

Work through the focused sets before taking a timed mock. For each missed question, identify the condition that changes the answer, read the feedback for your chosen option, and follow the study suggestion. Practice with your own fictional records in a development environment when available. Then take the second mock to test a different set of decisions and boundary cases.

This is an independent practice course, not an official Salesforce exam or exam dump. It covers fundamental platform development rather than Platform Developer II integration design and performance tuning. Practice scores do not guarantee a certification result.