Free Salesforce DEX-450 Exam Questions

Become Salesforce Certified with updated DEX-450 exam questions and correct answers

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Total 387 Questions | Updated On: Oct 29, 2025

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Question 1

Which two statements are true about using the @testSetup annotation in an Apex test class?

Choose 2 answers

A : Records created in the test setup method cannot be updated in individual test methods.

B : Qo The @testSetup annotation is not supported when the GisTest(SeeAllData=True) annotation is used.

C : Test data is inserted once for all test methods in a class.

D : A method defined with the @testSetup annotation executes once for each test method in the test class and counts towards system limits.

Answer: B,D

Question 2

For which three items can 2 trace flag be configured?

Choose 3 answers

A : Flow

B : Apex Class

C : User

D : Apex Trager

E : Visualforce

Answer: B,C,D

Question 3

A developer needs to have records with specific field values in order to test a new Apex class.

What should the developer do to ensure the data is available to the test?

A : Use Anonymous Apex to create the required data.

B : Use SOQL to query the org for the required data.

C : Use Test.Loaddata () and reference a static resource.

D : Use Test.Loaddata () and reference a CSV file

Answer: C

Question 4

An Opportunity needs to have an amount rolled up from a custom object that is not in a master-detail relationship.

How can this be achieved?

A : Write a trigger on the child object and use a red-black tree sorting to sum the amount for all related child objects under the Opportunity.

B : Write a Process Builder that links the custom object to the Opportunity.

C : Write a trigger on the child object and use an aggregate function to sum the amount for all related child objects under the Opportunity

D : Use the Streaming API to create real-time roll-up summaries.

Answer: C

Question 5

A developer has two custom controller extensions where each has a save() method.

Which save() method will be called for the following Visualforce page?

< apex:page standardController =''Account'', extensions=''ExtensionA, ExtensionB'' >

< apex:commandButton action =''{!save}'' value=''Save''/ >

< /apex:page >

A : Runtime error will be generated

B : Standard controller save()

C : ExtensionB save()

D : ExtensionA save()

Answer: A

Page: 1 / 78

Total 387 Questions | Updated On: Oct 29, 2025

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