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Updated: Oct 16, 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% |
| Exam Duration: | 120 minutes |
| Exam Format: | Multiple Choice, Multiple Select |
| Exam Price: | USD 400 |
| Real Exam Qty: | 60 (+ up to 5 unscored) |
| Available Languages: | English |
| Certificate Validity Period: | 3 years |
| 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 |
| Testing, Debugging, and Deployment | 15% | - Debugging and performance profiling - Test data strategies and mocking - Deployment tools (SFDX, Metadata API) - Apex unit testing best practices |
| Integration | 15% | - External Services and Connect REST API - REST and SOAP web services (Apex callouts) - Platform Events and Change Data Capture - Named Credentials and authentication |
| Logic and Process Automation | 22% | - Advanced Apex programming - Invocable Actions and Platform Events - Asynchronous Apex (Batch, Queueable, Future, Scheduled) - Dynamic Apex and SOQL/SOSL |
| Architecture | 18% | - Governor limits and bulkification - Design patterns and Apex trigger frameworks - Apex Enterprise Patterns - Namespace and package management |
| Data Modeling | 12% | - External objects and data sources - Advanced object relationships and data modeling - Large data volumes considerations |
Salesforce Certified Platform Developer II - Multiple Choice Sample Questions:
Consider the following code snippet:
How should the <e-orders> component communicate to the <c-selected-orders component that an order has been selected by the user?
- A. Create and fire a component event.
- B. Create and fire an application event.
- C. Create and fire a standard DOM event.
- D. Create and dispatch a custom event,
Correct Answer: D 🗳️
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A developer is tasked with creating a Lightning web component that allows users to create a Case for a selected product, directly from a custom Lightning page. The input fields in the component are displayed in a non-linear fashion on top of an image of the product to help the user better understand the meaning of the fields.
Which two components should a developer use to implement the creation of the Case from the Lightning web component?
Choose 2 answers
- A. lightning-input-fimld
- B. Lightning-record-edit-forth
- C. lightning-record-form
- D. Lightning-input
Correct Answer: C,D 🗳️
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As part of a custom interface, a developer team creates various new Lightning web components. Each of the components handles errors using toast messages. When the development is complete, all the components are added to the same Lightning page.
During acceptance testing, users complain about the long chain of toast messages that display when errors occur loading the components.
Which two techniques should the developer implement to improve the user experience?
Choose 2 answers
- A. Use the window.alert() method to display the error messages
- B. Use a Lightning web component to aggregate and display all errors
- C. Use a <tamplate> tag to display in-place error messages.
- D. Use public, properties on each component to display the error messages.
Correct Answer: B,D 🗳️
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A company wants to run different logic based on an Opportunity's record type.
Which code segment handles this request and follows best practices?
A)
B)
C)
D)
- A. Option C
- B. Option B
- C. Option D
- D. Option A
Correct Answer: A 🗳️
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The use of the transient keyword in Visualforce page controllers helps with which common performance issue?
- A. Improves query performance
- B. Reduces load times
- C. Improves page transfers
- D. Reduces view state
Correct Answer: D 🗳️
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