Try and practice the latest Salesforce : Plat-Dev-301 real questions & answers
Updated: Sep 07, 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 |
| Available Languages: | English |
| Related Certifications: | Salesforce Certified Platform Developer I |
| Certificate Validity Period: | 2 years |
| Exam Price: | USD 200 |
| Exam Duration: | 120 minutes |
| Passing Score: | 70% |
| Exam Format: | Multiple-select, Multiple-choice |
| Real Exam Qty: | 60-65 |
| Recommended Training: | Trailhead Platform Developer II Learning Path |
| Exam Registration: | Salesforce Certification Registration |
| Sample Questions: | Salesforce Plat-Dev-301 Sample Questions |
| Exam Way: | Online proctored or onsite at authorized testing centers |
| Pre Condition: | Must hold Salesforce Certified Platform Developer I certification; also requires completion of 4 Superbadges: Apex Specialist, Data Integration Specialist, Aura Components Specialist, Advanced Apex Specialist |
| Official Syllabus URL: | https://trailhead.salesforce.com/en/credentials/platformdevii |
Salesforce Plat-Dev-301 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Testing, Debugging, and Deployment | 20% | - Debugging and error handling across layers - Deployment strategies, CI/CD, and change management - Advanced testing strategies and test frameworks |
| Topic 2: Logic, Process Automation, and Integration | 27% | - Advanced Apex programming and transaction management - Complex business logic and automation design - Asynchronous Apex: future, queueable, batch, scheduled - REST/SOAP API, Platform Events, and external integrations |
| Topic 3: Advanced Developer Fundamentals | 15% | - Apply security best practices in development - Work with localization, multi-currency, and global features - Design and maintain scalable, reusable code |
| Topic 4: User Interface Development | 20% | - Optimize UI performance and usability - Build complex Lightning Web Components and Aura Components - Implement advanced Visualforce functionality |
| Topic 5: Performance and Data Management | 18% | - Governor limits optimization and best practices - Optimize queries and handle large data volumes - Data modeling and complex data operations |
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 standardPlatform Event that gets fired with with Eventbus.publish(1.
B. Have the external system subscribe to a standard Platform Event that gets fired.
C. Have the external system subscribe to a custom Platform Event that gets fired with addError{).
D. Have the external system subscribe to a customPlatform Event that gets fired with EventBus.publish(1,
Question 2
Universal Containers (LIC) wants to develop a customer community to help their customers log issues with their containers. The community needs to function for their German- and Spanish-speaking customers also. UC heard that it's easy to create an international community using Salesforce, and hired a developer to build out the site.
What should the developer use to ensure the site is multilingual?
A. Use custom settings to ensure custom messages are translated properly.
B. Use custom objects to translate custom picklist values.
C. Use custom metadata to translate custom picklist values.
D. Use custom labels to ensure custom messages are translated properly.
Question 3
Given the following code:
Assuming there were 10 Contacts and five Accounts created today, what is the expected result?
A. System.LimitException: Too many SOQL Queries on Contact
B. System.QueryException: Too many DML Statement errors on Contact
C. System.QueryException: List has more than one row for Assignment on Account
D. Systemn.LimitException: Too many SOQL Queries on Account
Question 4
A developer created a Lightning web component mat allows users to Input a text value that is used to search for Accounts by calling an Apex method. The Apex method returns a list of account to apply and is called imperatively from a JavaScript event handler.
Which two changes should the developer make so the Apex method functions correctly. Choose 2 answers
A. Add @AuraEnabled to lines 11 and 12.
B. Add @AuraEnabled to line 03.
C. Add @AuraEnabled to line 09.
D. Add @AuraEnabled to line 01.
Question 5
A Salesforce developer is hired by a multi-national company to build a custom Lightning application that shows employees their employment benefits and earned commissions over time. The application must acknowledge and respect the user's locale context for dates, times, numbers, currency, and currency symbols.
When using Aura components, which approach should the developer implement to ensure the Lightning application complies with the user's locale?
A. Use the $Lacale value provider to retrieve the user preferences.
B. Use the $User global variable to retrieve the user preferences.
C. Create a Hierarchical custom setting to store user preferences.
D. Use the $Label global value provider.
Solutions:
| Question 1 Answer: D | Question 2 Answer: D | Question 3 Answer: C | Question 4 Answer: A,B | Question 5 Answer: A |
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