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Plat-Dev-301

Check Updated on: Sep 12, 2026

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Salesforce Plat-Dev-301 Exam Syllabus Topics:

SectionObjectives
Testing and Deployment- Testing strategies
  • 1. Test data creation and mocking
    • 2. Code coverage and quality practices
      - Deployment lifecycle
      • 1. Version control and CI/CD concepts
        • 2. Change sets and deployment tools
          Application Development- Advanced Apex programming
          • 1. Exception handling and debugging strategies
            • 2. Dynamic Apex and metadata-driven development
              • 3. Apex design patterns and best practices
                - Asynchronous processing
                • 1. Future methods and limits considerations
                  • 2. Batch Apex and Queueable Apex
                    • 3. Scheduled Apex
                      Integration and APIs- Platform events and messaging
                      • 1. Change Data Capture concepts
                        • 2. Event-driven architecture
                          - External system integration
                          • 1. REST and SOAP API usage
                            • 2. Callouts from Apex
                              Data Modeling and Management- Data access and security
                              • 1. Sharing rules and Apex-managed sharing
                                • 2. Security enforcement in Apex
                                  - Advanced data modeling
                                  • 1. Complex relationships and schema design
                                    • 2. Large data volume considerations

                                      Salesforce Certified Platform Developer II - Multiple Choice Sample Questions:

                                      Consider the following code snippet:

                                      The Apex method is executed in an environment with a large data volume count for Accounts, and the query is performing poorly. Which technique should the developer implement to ensure the query performs optimally, while preserving the entire result set?

                                      • A. Create a formula field to combine the createdDate and RecordType value, then filter based on the formula.
                                      • B. Use the Database queryLocator method to retrieve the accounts.
                                      • C. Break down the query into two individual queries and join the two result sets.
                                      • D. Annotate the method with the @Future annotation
                                      Answer: B

                                      Explanation: Only visible for PrepAwayETE members. You can sign-up / login (it's free).

                                      Given a list of Opportunity records named opportunityList, which code snippet is best for querying all Contacts of the Opportunity's Account?
                                      A)

                                      B)

                                      C)

                                      D)

                                      • A. Option B
                                      • B. Option A
                                      • C. Option D
                                      • D. Option C
                                      Answer: B

                                      A developer wrote a trigger on Opportunity that will update a custom Last Sold Date field on the Opportunity's Account whenever an Opportunity is closed. In the test class for the trigger, the assertion to validate the Last Sold Date field fails.
                                      What might be causing the failed assertion?

                                      • A. The test class has not implemented seealldata=true in the test method.
                                      • B. The test class has not re-queried the Account record after updating the Opportunity.
                                      • C. The test class has not defined an Account owner when inserting the test data.
                                      • D. The test class is not using System. runs () to run tests as a Salesforce administrator.
                                      Answer: B

                                      Explanation: Only visible for PrepAwayETE members. You can sign-up / login (it's free).

                                      A developer has a test class that creates test data before making a mock callout but now receives a 'You have uncommitted work pending. Please commit or rollback before calling out' error.
                                      Which step should be taken to resolve the error?

                                      • A. Ensure the records are inserted before the Test.startTess() statement and the mock callout occurs after the Test. Startest().
                                      • B. Ensure both the Insertion and mock callout occur after the I==L. stoptest_().
                                      • C. Ensure the records are Inserted before the Tezt.startTest() statement and the mock callout occurs within a method annotated with @testSetup.
                                      • D. Ensure both the insertion and mock callout occur after the Test.startTest().
                                      Answer: A

                                      Explanation: Only visible for PrepAwayETE members. You can sign-up / login (it's free).

                                      Consider the queries in the options below and the following Information:
                                      * For these queries, assume that there are more than 200,000 Account records.
                                      * These records Include soft-deleted records; that is, deleted records that are still in the Recycle Bin.
                                      * There are two fields that are marked as External Id on the
                                      Account. These fields are customer_Number_c and ERR_Key_ s.
                                      Which two queries are optimized for large data volumes?
                                      Choose 2 answers

                                      • A. SELECT ID FROM Account WHRE id IN :aListVariable
                                      • B. SELECT 1d FROM Accounts WHERE Name != 'AND Customer_Number_c- "ValueA'
                                      • C. SELECT Id FROM Account WHERE Name !- NULL
                                      • D. SELECT Id FROM Account WHERE Name != ' 'AND IsDeleted = false
                                      Answer: B,D

                                      Explanation: Only visible for PrepAwayETE members. You can sign-up / login (it's free).

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