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

Plat-Dev-301

Exam Code: Plat-Dev-301

Exam Name: Salesforce Certified Platform Developer II - Multiple Choice

Updated: Oct 11, 2026

Q & A: 204 Questions and Answers

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Salesforce Plat-Dev-301 Exam Syllabus Topics:

SectionWeightObjectives
Topic 1: Logic, Process Automation, and Integration27%- Advanced Apex programming and transaction management
- Asynchronous Apex: future, queueable, batch, scheduled
- REST/SOAP API, Platform Events, and external integrations
- Complex business logic and automation design
Topic 2: User Interface Development20%- Build complex Lightning Web Components and Aura Components
- Implement advanced Visualforce functionality
- Optimize UI performance and usability
Topic 3: Performance and Data Management18%- Data modeling and complex data operations
- Governor limits optimization and best practices
- Optimize queries and handle large data volumes
Topic 4: Testing, Debugging, and Deployment20%- Debugging and error handling across layers
- Advanced testing strategies and test frameworks
- Deployment strategies, CI/CD, and change management
Topic 5: Advanced Developer Fundamentals15%- Apply security best practices in development
- Design and maintain scalable, reusable code
- Work with localization, multi-currency, and global features

Salesforce Certified Platform Developer II - Multiple Choice Sample Questions:

Question #1
Business rules require a Contact ta always be created when a new Account is created.
What can be used when developing a custom screen to ensure an Account is not created if the creation of the Contact fails?

A. Disable validation rules on Contacts and set default values with a trigger.
B. Use setSaverpoint (1) and rollback() with a try-catch block.
C. Use the Database. Delete method if the Contact insertion fails.
D. Use the Database. Insect method with a11orNone SEL LO alee,


Question #2
Universal Containers stores user preferences in a Hierarchy Custom Setting, User_Prefs_c, with a Checkbox field, Show_Help_c. Company-level defaults are stored at the organizational level, but may be overridden at the user level. If a user has not overridden preferences, then the defaults should be used.
How should the Show_Help_c preference be retrieved for the current user?

A. Boolean show = User_Prefs__c.getValues(UserInfo.getUserId()).Show_Help__c;
B. Boolean show = User_Prefs__c.getInstance().Show_Help__c;
C. Boolean show = User_Prefs__c.getValues().Show_Help__c;
D. Boolean show = User_Prefs__c.Show_Help__c;


Question #3
When the sales team views an individual customer record, they need to see recent interactions for the customer. These interactions can be sales orders, phone calls, or Cases. The date range for recent interactions will be different for every customer record type.
How can this be accomplished?

A. Use Lightning Flow to read the customer's record type, and then do a dynamic query for recent interactions and display on the View page.
B. Use a Lightning component to query and display interactions based on record type that is passed in using a design:attribute from the Lightning page.
C. Use a dynamic form on the customer record page to display recent interactions.
D. Use batch Apex to query for the most recent interactions when the customer view screen is loaded.


Question #4
Which three approaches should a developer implement to obtain the best performance for data retrieval when building a Lightning web component? Choose 3 answers

A. Use layoutTypes: 9'Full') to display a set of fields.
B. Use getRecordUi to obtain metadata.
C. Use the Lightning Data Service.
D. Use {Cacheable=true} whenever possible
E. Use lazy load for occasionally accessed data.


Question #5
A Visualforce page contains an industry select list and displays a table of Accounts that have a matching value in their Industry field.

When a user changes the value in the industry select list, the table of Accounts should be automatically updated to show the Accounts associated with the selected industry, What is the optimal way to implement this?

A. Add an <apex:actionFunction> within the <apax:selecList>.
B. Add an <apex:actionsupport> within the <apex:selecList>.
C. Add an <apex:actionsupport> within the <apex:selectOptions>.
D. Add an <apex:actionFunction> within the <apex:selectOptions>.


Solutions:

Question #1
Correct Answer: B
Question #2
Correct Answer: B
Question #3
Correct Answer: B
Question #4
Correct Answer: C,D,E
Question #5
Correct Answer: B

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