Free CRT-450: Salesforce Certified Platform Developer I Exam Questions and Answers

Last updated: September 13, 2026

Exam code

CRT-450

Provider

Salesforce

Questions in our bank

1000+

Free to read

First 10, with answers

Official page

Official Exam website

Our test mode duration & pass mark

130 mins · 70%

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1. Question #1

   Which approach should be used to provide test data for a test class?

   • A. Query for existing records in the database.
   • B. Execute anonymous code blocks that create data.
   • C. Use a test data factory class to create test data.
   • D. Access data in @TestVisible class variable
   Reveal Answer

2. Question #2

   A developer wrote a unit test to confirm that a custom exception works properly in a custom controller, but the test failed due to an exception being thrown. Which step should the developer take to resolve the issue and properly test the exception?

   • A. Use try/catch within the unit test to catch the exception.
   • B. Use the finally bloc within the unit test to populate the exception.
   • C. Use the database methods with all or none set to FALSE.
   • D. Use Test.isRunningTest() within the custom controlle
   Reveal Answer

3. Question #3

   What is the result of the debug statements in testMethod3 when you create test data using testSetup in below code?

   • A. Account0.Phone=333-8781, Account1.Phone=333-8780
   • B. Account0.Phone=888-1515, Account1.Phone=999-2525
   • C. Account0.Phone=333-8780, Account1.Phone=333-8781
   • D. Account0.Phone=888-1515, Account1.Phone=999-1515
   Reveal Answer

4. Question #4

   In an organization that has enabled multiple currencies, a developer needs to aggregate the sum of the Estimated_value c currency field from the CampaignMember object using a roll-up summary field called Total_estimated_value c on Campaign.

   • A. The values in Campaignmember.Estimated_value c are converted into the currency of the Campaign record and the sum is displayed using the currency on the
   • B. The values in CampaignMember.Estimated_value c are converted into the currency on the majority of the CampaignMember records and the sum is displayed
   • C. The values in CampaignMember.Estimated_value c are summed up and the resulting Total_estimated_value c field is displayed as a numeric field on the
   • D. The values In CampaignMember.Estimated_value c are converted into the currency of the current user, and the sum is displayed using the currency on the
   Reveal Answer

5. Question #5

   A developer has the following code block: public class PaymentTax {public static decimal SalesTax = 0.0875;} trigger OpportunityLineItemTrigger on OpportunityLineItem (before insert, before update) {PaymentTax PayTax = new PaymentTax();decimal ProductTax = ProductCost * XXXXXXXXXXX;} To calculate the productTax, which code segment would a developer insert at the XXXXXXXXXXX to make the value the class variable SalesTax accessible within the trigger?

   • A. SalesTax
   • B. PayTax.SalesTax
   • C. PaymentTax.SalesTax
   • D. OpportunityLineItemTngger.SalesTax
   Reveal Answer

6. Question #6

   What is a benefit of the lightning component framework?

   • A. Better integration with Force.com sites
   • B. Better performance for custom Salesforce1 Mobile Apps
   • C. More Centralized control via server-side logic
   • D. More pre-built components to replicate the salesforce look and feel
   Reveal Answer

7. Question #7

   A developer writes a before insert trigger.How can the developer access the incoming records in the trigger body?

   • A. By accessing the Trigger.new context variable.
   • B. By accessing the Trigger.newRecords context variable.
   • C. By accessing the Trigger.newMap context variable.
   • D. By accessing the Tripper.newList context variabl
   Reveal Answer

8. Question #8

   What is a correct pattern to follow when programming in Apex on a Multi-tenant platform?

   • A. Apex code is created in a separate environment from schema to reduce deployment errors.
   • B. DML is performed on one record at a time to avoid possible data concurrency issues.
   • C. Queries select the fewest fields and records possible to avoid exceeding governor limits.
   • D. Apex classes use the ''with sharing" keyword to prevent access from other server tenant
   Reveal Answer

9. Question #9

   A developer uses a before insert trigger on the Lead object to fetch the Territory c object, where the Territory c.PostalCode c matches the Lead.PostalCode. The code fails when the developer uses the Apex Data Loader to insert 10,000 Lead records. The developer has the following code block: Line-01: for (Lead l : Trigger.new){Line-02: if (l.PostalCode != null) {Line-03: List terrList = [SELECT Id FROM Territory c WHERE PostalCode c = :l.PostalCode];Line-04: if(terrList.size() > 0) Line-05: l.Territory c = terrList[0].Id; Line-06: }Line-07: }Which line of code is causing the code block to fail?

   • A. Line-03: A SOQL query is located inside of the for loop code.
   • B. Line-01: Trigger:new is not valid in a before insert Trigger.
   • C. Line-02: A NullPointer exception is thrown if PostalCode is null.
   • D. Line-05: The Lead in a before insert trigger cannot be update
   Reveal Answer

10. Question #10

    A developer has the following code:try {List nameList;Account a;String s = a.Name;nameList.add(s);} catch (ListException le ) {System.debug(' List Exception ');} catch (NullPointerException npe) {System.debug(' NullPointer Exception ');} catch (Exception e) {System.debug(' Generic Exception ');} What message will be logged?

    • A. List Exception
    • B. NullPointer Exception
    • C. Generic Exception
    • D. No message is logged
    Reveal Answer