Salesforce Plat-Dev-301 : Salesforce Certified Platform Developer II - Multiple Choice

  • Exam Code: Plat-Dev-301
  • Exam Name: Salesforce Certified Platform Developer II - Multiple Choice
  • Updated: Aug 29, 2026
  • Q & A: 204 Questions and Answers

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Salesforce Plat-Dev-301 Exam Syllabus Topics:

SectionWeightObjectives
Architecture18%- Namespace and package management
- Governor limits and bulkification
- Design patterns and Apex trigger frameworks
- Apex Enterprise Patterns
Integration15%- Named Credentials and authentication
- Platform Events and Change Data Capture
- External Services and Connect REST API
- REST and SOAP web services (Apex callouts)
Data Modeling12%- External objects and data sources
- Large data volumes considerations
- Advanced object relationships and data modeling
Logic and Process Automation22%- Dynamic Apex and SOQL/SOSL
- Invocable Actions and Platform Events
- Asynchronous Apex (Batch, Queueable, Future, Scheduled)
- Advanced Apex programming
User Interface18%- Aura Components
- Visualforce advanced controllers
- Lightning Data Service
- Lightning Web Components (LWC) advanced features
Testing, Debugging, and Deployment15%- Debugging and performance profiling
- Deployment tools (SFDX, Metadata API)
- Test data strategies and mocking
- Apex unit testing best practices

Salesforce Certified Platform Developer II - Multiple Choice Sample Questions:

Question 1

Universal Containers wants to notify an external system in the event that an unhandled exception occurs when their nightly Apex batch job runs.
What is the appropriate publish/subscribe logic to meet this requirement?

A. Have the external system subscribe to a custom Platform Event that gets fired with addError{).
B. Have the external system subscribe to a standard Platform Event that gets fired.
C. Have the external system subscribe to a customPlatform Event that gets fired with EventBus.publish(1,
D. Have the external system subscribe to a standardPlatform Event that gets fired with with Eventbus.publish(1.


Question 2

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


Question 3

A developer created an Opportunity trigger that updates the account rating when an associated opportunity is considered high value. Current criteria for an opportunity to be considered high value is an amount greater than or equal to $1,000,000. However, this criteria value can change over time.
There is a new requirement to also display high value opportunities in a Lightning web component.
Which two actions should the developer take to meet these business requirements, and also prevent the business logic that obtains the high value opportunities from being repeated in more than one place?
Choose 2 answers

A. Create a helper class that fetches the high value opportunities,
B. Use custom metadata to hold the high value amount.
C. Call the trigger from the Lightning web component.
D. Leave the business logic code inside the trigger for efficiency.


Question 4

The head of recruiting at Universal Containers (UC) wants to provide all internal users the ability to search for open positions by role, department, and location via a new recruiting app. In addition to search, users of the app should be able to refer a friend, apply for a position, and review the status of their current submissions.
The app will be surfaced to UC's existing iOS and Android users via the standard mobile app that Salesforce provides. It has a custom user interface design and offline access is not required.
Given these requirements, what is the recommended approach to develop the app?

A. Salesforce SDK
B. Lightning Web Components
C. Lightning Experience Builder
D. Visualforce


Question 5

Universal Containers develops a Salesforce application that requires frequent interaction with an external REST API.
To avoid duplicating code and improve maintainability, how should they implement the APL integration for code reuse?

A. Store the APT integration code as a static resource and reference it in each Apex class.
B. Include the API integration code directly in each Apex class that requires it.
C. Create a reusable Apex class for the AFL integration and invoke it from the relevant Apex classes.
D. Use a separate Apex class for each API endpoint to encapsulate the integration logic,


Solutions:

Question 1
Answer: C
Question 2
Answer: C
Question 3
Answer: A,B
Question 4
Answer: B
Question 5
Answer: C

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