20+ practice questions focused on Developer Fundamentals — one of the most tested topics on the Salesforce Certified Platform Developer I (SALESFORCE-PD1) exam. Each question includes a detailed explanation so you learn why the right answer is correct.
Start Developer Fundamentals PracticeWhat is the maximum number of SOQL queries that can be issued in a single synchronous Apex transaction?
Explanation: The synchronous governor limit for SOQL queries is 100 queries per transaction.
A developer needs to retrieve Account records along with their associated Contacts in a single query. Which query syntax is correct?
Explanation: Parent-to-child subqueries use plural child relationship names enclosed in parentheses inside the SELECT clause.
A developer needs to ensure that an Apex class respects organization-wide defaults, role hierarchies, and sharing rules when querying custom objects. Which keyword should be added to the class definition?
Explanation: The with sharing keyword enforces sharing rules of the current user, while without sharing runs in system mode.
An enterprise application requires Apex code to check whether the current user has read access to a specific custom field before displaying it in a custom Lightning Web Component. What is the most appropriate class to use?
Explanation: The Schema.DescribeFieldResult class provides methods like isAccessible() to check Field-Level Security (FLS) dynamically.
A developer writes an Apex method that executes a SOQL query using user-supplied search parameters. How can the developer protect against SOQL injection vulnerabilities?
Explanation: Using bind variables in SOQL queries automatically sanitizes the input and prevents SOQL injection, unlike string concatenation.
+15 more Developer Fundamentals questions available
Practice all Developer Fundamentals questions1. Baseline your knowledge
Start with 10 questions to gauge your current understanding of Developer Fundamentals. This tells you whether you need a concept refresher or just practice.
2. Review every explanation
For each question — right or wrong — read the full explanation. Understanding why an answer is correct is more valuable than knowing the answer itself.
3. Focus on exam traps
Developer Fundamentals questions on the SALESFORCE-PD1 frequently use trap wording. Look for subtle differences in answers that test your precision, not just general knowledge.
4. Reach 80% consistently
Do repeated sessions until you score 80%+ three times in a row. Then move to mixed-mode practice to test cross-topic recall under realistic conditions.
The exact number varies per candidate. Developer Fundamentals is tested as part of the Salesforce Certified Platform Developer I (SALESFORCE-PD1) blueprint. Practicing with targeted Developer Fundamentals questions ensures you can handle any format or difficulty that appears.
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Difficulty is subjective, but Developer Fundamentals is a high-priority exam concept tested in multiple ways — direct recall, scenario analysis, and command-output interpretation. Consistent practice is the best way to build confidence.
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