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Salesforce Salesforce Developers Plat-Dev-201

Plat-Dev-201

Exam Code: Plat-Dev-201

Exam Name: Salesforce Certified Platform Developer

Updated Time: Oct 28, 2026

Q & A: 240 Questions and Answers

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About Salesforce Plat-Dev-201 Exam Materials

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Salesforce Plat-Dev-201 Exam Syllabus Topics:

TopicDetails
Topic 1
  • Process Automation and Logic: Focuses on automating business logic using declarative tools and Apex, including SOQL
  • SOSL
  • DML, control flow, governor limits, transaction execution order, exception handling, and Apex classes and triggers best practices.
Topic 2
  • Developer Fundamentals: Covers Salesforce multi-tenant concepts, MVC and Lightning Component Framework, declarative vs. programmatic customization decisions, data modeling, and basic Agentforce use cases for developers.
Topic 3
  • User Interface: Covers building secure custom UIs using Lightning Web Components, Visualforce, and Flow, including component events, framework benefits, and preventing UI and data access security vulnerabilities.
Topic 4
  • Testing, Debugging, and Deployment: Covers writing tests for Apex and flows, using Salesforce developer tools (DX, CLI, Developer Console), debugging and monitoring system issues, and deploying code and configurations across environments.

Reference: https://trailheadacademy.salesforce.com/certificate/exam-platform-dev1---Plat-Dev-201

Salesforce Certified Platform Developer Sample Questions:

Question #1
A custom object Trainer_c has a lookup field to another custom object Gym___c. Which SOQL query will get the record for the Viridian City gym and it's trainers?

A. SELECT Id, (SELECT Id FROM Trainers) FROM Gym_C WHERE Name -Viridian City Gym'
B. SELECT Id, (SELECT Id FROM Trainers) FROM Gym_C WHERE Name . Viridian City Gym'
C. SELECT ID FROM Trainer_c WHERE Gym__r.Name -Viridian City Gym'
D. SELECT Id, (SELECT Id FROM Trainer_c) FROM Gym_c WHERE Name -Viridian City Gym'


Question #2
Universal Containers has a support process that allows users to request support from its engineering team using a custom object, Engineering_Support__c.
Users should be able to associate multiple engineering_Support__c records to a single Opportunity record.
Additionally, aggregate Information about the Engineering_support__c records should be shown on the Opportunity record.
What should a developer Implement to support these requirements?

A. Lookup field from Engineering_support__c to Opportunity
B. Master-detail field from Opportunity to Engineering_Support__c
C. Master-detail field from Engineering_Support__c to Opportunity.
D. Lookup field from Opportunity to Engineering_Support__c


Question #3
Management asked for opportunities to be automatically created for accounts with annual revenue greater than $1,000,000. A developer created the following trigger on the Account object to satisfy this requirement.

Users are able to update the account records via the UI and can see an opportunity created for high annual revenue accounts. However, when the administrator tries to upload a list of 179 accounts using Data Loader, It fails with system. Exception errors. Which two actions should the developer take to fix the code segment shown above? Choose 2 answers

A. Query for existing opportunities outside the for loop.
B. Use Database.query to query the opportunities.
C. Move the DML that saves opportunities outside the for loop.
D. Check if all the required fields for Opportunity are being added on creation.


Question #4
Universal Containers stores the availability date on each Line Item of an Order and Orders are only shipped when all of the Line Items are available. Which method should be used to calculate the estimated ship date for an Order?

A. Use a CEILING formula on each of the Latest availability date fields.
B. Use a Max Roll-Up Summary field on the Latest availability date fields.
C. Use a DAYS formula on each of the availability date fields and a COUNT Roll-Up Summary field on the Order.
D. Use a LATEST formula on each of the latest availability date fields.


Question #5
Which statement generates a list of Leads and Contacts that have a field with the phrase
'ACME'?

A. List<List <sObject>> searchList = [SELECT Name, ID FROM Contact, Lead WHERE Name like
"tACME3"];
B. List <sObject> searchList = [FIND '*ACME*' IN ALL FIELDS RETURNING Contact, Lead];
C. List<List <sObject>> searchList = [FIND '*ACME*" IN ALL FIELDS RETURNING Contact, Lead];
D. Map <sObject> searchList = [FIND '*ACME*' IN ALL FIELDS RETURNING Contact, Lead];


Solutions:

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

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