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Salesforce Plat-Dev-301 Exam : Salesforce Certified Platform Developer II - Multiple Choice
- Exam Code: Plat-Dev-301
- Exam Name: Salesforce Certified Platform Developer II - Multiple Choice
- Updated: Oct 12, 2026
- Q & A: 204 Questions and Answers
About Salesforce Plat-Dev-301 Exam Questions
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Salesforce Plat-Dev-301 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Logic, Process Automation, and Integration | 27% | - Complex business logic and automation design - Advanced Apex programming and transaction management - Asynchronous Apex: future, queueable, batch, scheduled - REST/SOAP API, Platform Events, and external integrations |
| Topic 2: User Interface Development | 20% | - Optimize UI performance and usability - Implement advanced Visualforce functionality - Build complex Lightning Web Components and Aura Components |
| Topic 3: Testing, Debugging, and Deployment | 20% | - Advanced testing strategies and test frameworks - Debugging and error handling across layers - Deployment strategies, CI/CD, and change management |
| Topic 4: Advanced Developer Fundamentals | 15% | - Design and maintain scalable, reusable code - Work with localization, multi-currency, and global features - Apply security best practices in development |
| Topic 5: Performance and Data Management | 18% | - Governor limits optimization and best practices - Data modeling and complex data operations - Optimize queries and handle large data volumes |
Salesforce Certified Platform Developer II - Multiple Choice Sample Questions:
Question #1
A Salesforce Platform Developer is leading a team that is tasked with deploying a new application to production. The team has used source-driven development, and they want to ensure that the application is deployed successfully.
What tool or mechanism should be used to verify that the deployment is successful?
- A. Apex Test Execution
- B. Force.com Migration Tool
- C. Salesforce DX CLI
- D. Salesforce Inspector
Correct Answer: C 🗳️
Explanation: Only visible for VCEEngine members. You can sign-up / login (it's free).
Question #2
An Apex trigger creates an order co record every time an Opportunity is won by a Sales Rep. Recently the trigger is creating two orders.
What is the optimal technique for 2 developer to troubleshoot this?
- A. Disable all flows, and then re-enable them one at at time to see which one causes the error.
- B. Set up debug logging for every Sales Rep, then monitor the logs for errors and exceptions,
- C. Run the Apex Test Classes for the Apex trigger to ensure the code still has sufficient code coverage.
- D. Add system.debug() statements to the code and use the Developer Console logs to trace the code.
Correct Answer: D 🗳️
Explanation: Only visible for VCEEngine members. You can sign-up / login (it's free).
Question #3
How should a developer assert that a trigger with an asynchronous process has successfully run?
- A. Insert records into Salesforce, use seeAllData=true, then perform assertions.
- B. Create all test data in the test class, use system. runs {} to invoke the trigger, then perform assertions.
- C. Create all test data, use future in the rest class, then perform assertions.
- D. Create all test data in the test class, invoke Test.startTest{} and Test.etopTaat {} and then perform assertions.
Correct Answer: D 🗳️
Explanation: Only visible for VCEEngine members. You can sign-up / login (it's free).
Question #4
Refer to the markup below:
A Lightning web component displays the Account name and two custom fields out of 275 that exist on the abject. The custom fields are correctly declared and populated. However, the developer receives complaints that the component performs slowly. What can the developer do to improve the performance?
- A. Replace layout-type =''1" with fields=(fields}.
- B. Add cache="true" to the component.
- C. Replace Layout-type =''Full1" with Layout-type="Partial".
- D. Add density="compat" to the component.
Correct Answer: A 🗳️
Explanation: Only visible for VCEEngine members. You can sign-up / login (it's free).
Question #5
A developer is asked to replace the standard Case creation screen with a custom screen that takes users through a wizard before creating the Case. The org only has users running Lightning Experience.
What should the developer override the Case New Action with to satisfy the requirements?
- A. Lightning Page
- B. Lightning Component
- C. Lightning Record Page
- D. Lightning Flow
Correct Answer: D 🗳️
Explanation: Only visible for VCEEngine members. You can sign-up / login (it's free).
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