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Updated: Aug 27, 2026
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Salesforce Plat-Dev-301 Exam Overview:
| Certification Vendor: | Salesforce |
| Exam Name: | Salesforce Certified Platform Developer II (Multiple Choice) |
| Exam Number: | Plat-Dev-301 |
| Passing Score: | 70% |
| Certificate Validity Period: | 3 years |
| Exam Duration: | 120 minutes |
| Available Languages: | English |
| Real Exam Qty: | 60 (+ up to 5 unscored) |
| Exam Format: | Multiple Choice, Multiple Select |
| Exam Price: | USD 400 |
| Related Certifications: | Salesforce Certified Platform Developer I |
| Sample Questions: | Salesforce Plat-Dev-301 Sample Questions |
| Exam Way: | Online proctored or Onsite at a testing center |
| Pre Condition: | Salesforce Certified Platform Developer I (required) |
| Official Syllabus URL: | https://trailhead.salesforce.com/credentials/platformdeveloperi |
Salesforce Plat-Dev-301 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| User Interface | 18% | - Aura Components - Visualforce advanced controllers - Lightning Data Service - Lightning Web Components (LWC) advanced features |
| Logic and Process Automation | 22% | - Advanced Apex programming - Dynamic Apex and SOQL/SOSL - Asynchronous Apex (Batch, Queueable, Future, Scheduled) - Invocable Actions and Platform Events |
| Architecture | 18% | - Governor limits and bulkification - Apex Enterprise Patterns - Namespace and package management - Design patterns and Apex trigger frameworks |
| Integration | 15% | - REST and SOAP web services (Apex callouts) - Named Credentials and authentication - Platform Events and Change Data Capture - External Services and Connect REST API |
| Data Modeling | 12% | - External objects and data sources - Large data volumes considerations - Advanced object relationships and data modeling |
| Testing, Debugging, and Deployment | 15% | - Deployment tools (SFDX, Metadata API) - Apex unit testing best practices - Debugging and performance profiling - Test data strategies and mocking |
Salesforce Certified Platform Developer II - Multiple Choice Sample Questions:
1. Which scenario requires a developer to use an Apex callout
Instead of Outbound Messaging?
A) The callout needs to be asynchronous.
B) The callout needs to be invoked from a flow.
C) The target system uses a REST APL.
D) The target system uses a SCAP API.
2. A developer has a Visualforce page that automatically assigns ewnership of an Account to a queue upon save. The page appears to correctly assign ownership, but an assertion validating the correct ownership fails.
What can cause this problem?
A) The test class does not retrieve the updated value from the database,
B) The test class does not implement the Queueable interface.
C) The test class does not use the Bulk API for loading test data.
D) The test class does not use the seeallData=true= annotation.
3. Universal Containers needs to integrate with their own, existing, internal custom web application. The web application accepts JSON payloads, resizes product images, and sends the resized images back to Salesforce.
What should the developer use to implement this integration?
A) A flow that calls an @future method that allows callouts
B) A flow with an outbound message that contains a session ID
C) An Apex trigger that calls an @future method that allows callouts
D) A platform event that makes a callout to the web application
4. A company has a Lightning page with many Lightning Components, some that cache reference dat a. It is reported that the page does not always show the most current reference data.
What can a developer use to analyze and diagnose the problem in the Lightning page?
A) Salesforce Lightning Inspector Event Log tab
B) Salesforce Lightning Inspector Storage tab
C) Salesforce Lightning Inspector Transactions tab
D) Salesforce Lightning Inspector Actions tab
5. 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 customPlatform Event that gets fired with EventBus.publish(1,
B) Have the external system subscribe to a standardPlatform Event that gets fired with with Eventbus.publish(1.
C) Have the external system subscribe to a custom Platform Event that gets fired with addError{).
D) Have the external system subscribe to a standard Platform Event that gets fired.
Solutions:
| Question # 1 Answer: C | Question # 2 Answer: A | Question # 3 Answer: C | Question # 4 Answer: B | Question # 5 Answer: A |
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