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Last Updated: Sep 14, 2026
No. of Questions: 204 Questions & Answers with Testing Engine
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Salesforce Plat-Dev-301 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Testing, Debugging, and Deployment | 20% | - Advanced testing strategies and test frameworks - Deployment strategies, CI/CD, and change management - Debugging and error handling across layers |
| Advanced Developer Fundamentals | 15% | - Work with localization, multi-currency, and global features - Apply security best practices in development - Design and maintain scalable, reusable code |
| User Interface Development | 20% | - Optimize UI performance and usability - Implement advanced Visualforce functionality - Build complex Lightning Web Components and Aura Components |
| Logic, Process Automation, and Integration | 27% | - Asynchronous Apex: future, queueable, batch, scheduled - Complex business logic and automation design - REST/SOAP API, Platform Events, and external integrations - Advanced Apex programming and transaction management |
| Performance and Data Management | 18% | - Data modeling and complex data operations - Governor limits optimization and best practices - Optimize queries and handle large data volumes |
Salesforce Certified Platform Developer II - Multiple Choice Sample Questions:
A Visualforce page contains an industry select list and displays a table of Accounts that have a matching value in their Industry field.
When a user changes the value in the industry select list, the table of Accounts should be automatically updated to show the Accounts associated with the selected industry, What is the optimal way to implement this?
- A. Add an <apex:actionFunction> within the <apax:selecList>.
- B. Add an <apex:actionsupport> within the <apex:selecList>.
- C. Add an <apex:actionFunction> within the <apex:selectOptions>.
- D. Add an <apex:actionsupport> within the <apex:selectOptions>.
Correct Answer: B 🗳️
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Consider the controller code below that is called from an Aura component and returns data wrapped in a class.
The developer verified that the queries return a single record each and there is error handling in the Aura component, but the component is not getting anything back when calling the controller getSemeData. 'What is wrong?
- A. Instances of Apex classes, such as MyDatsWrapper, cannot be returned to a Lightning component.
- B. The member's Kame and option of the class MyDataWrapper should be annotated with @AuraEnabled also.
- C. The member's Name and option should not have getter and setter.
- D. The member's Name and option should not be declared public.
Correct Answer: B 🗳️
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Given the following code:
Assuming there were 10 Contacts and five Accounts created today, what is the expected result?
- A. Systemn.LimitException: Too many SOQL Queries on Account
- B. System.QueryException: List has more than one row for Assignment on Account
- C. System.QueryException: Too many DML Statement errors on Contact
- D. System.LimitException: Too many SOQL Queries on Contact
Correct Answer: B 🗳️
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A developer wrote an Apex class to make several callouts to an external system.
If the URLs used in these callouts will change often, which feature should the developer use to minimize changes needed to the Apex class?
- A. Remote Site Settings
- B. Connected Apps
- C. Named Credentials
- D. Session Id
Correct Answer: C 🗳️
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Universal Containers (LIC) wants to develop a customer community to help their customers log issues with their containers. The community needs to function for their German- and Spanish-speaking customers also. UC heard that it's easy to create an international community using Salesforce, and hired a developer to build out the site.
What should the developer use to ensure the site is multilingual?
- A. Use custom objects to translate custom picklist values.
- B. Use custom settings to ensure custom messages are translated properly.
- C. Use custom metadata to translate custom picklist values.
- D. Use custom labels to ensure custom messages are translated properly.
Correct Answer: D 🗳️
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