Free Salesforce Plat-Dev-301 Exam Questions

Become Salesforce Certified with updated Plat-Dev-301 exam questions and correct answers

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Total 455 Questions | Updated On: Jun 16, 2026

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Question 1

A developer encounters an error that states that the Apex heap size is exceeded. Which technique may reduce heap size?

A : Add the transient keyword to the variable definition

B : Move the variable definition inside the scope of the function

C : Use static variables instead of instance variables

D : Use SOQL for loops instead of standard SOQL queries

Answer: D

Question 2

A customer requires that when the billing address field on an Account gets updated, the address field on all its related contact records should reflect the same update.How can this requirement be met with minimal customizations?

A : Create an After Trigger on Account to upd|ate its related contact records on update

B : Create a Workflow Rule on Account to update related child Contact records

C : Create a Lightning Process on Account to update related child Contact records

D : Create a scheduled batch job that updates all contact address fields based on the related account record.

Answer: C

Question 3

What is a consideration when using bind variables with dynamic SOQL? (Choose two.)

A : Dynamic SOQL cannot reference fields on bind variables

B : Dynamic SOQL cannot use bind variables

C : Bind variables must be public or global

D : Bind variables must be in local scope

Answer: A,D

Question 4

Lightning Aura ComponentGiven the code above, which two changes need to be made in the Apex Controller for the code to work' Choose 2 answers

A : Change the method signature to be global static, not public static.

B : Change the argument from JSONObject to String.

C : Annotate the entire class as @AuraEnabled instead of just the single method.

D : Remove line 06 from the Apex Controller and use firstName In the return.

Answer: B,D

Question 5

A developer created a custom component to display an HTML table. The developer wants to be able to use the component on different Visualforce Pages and specify different header text for the table.Which tag should the developer use inside the component?

A : < apex:variable >

B : < apex:define >

C : < apex:param >

D : < apex:attribute >

Answer: D

Page: 1 / 91

Total 455 Questions | Updated On: Jun 16, 2026

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