100% Free Plat-Dev-301 Practice Exam Questions and Answers

Stay Ahead with Latest Plat-Dev-301 Salesforce Certified Developer Practice Test Questions 2026

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Total 455 Questions | Updated On: Sep 04, 2026

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Question 1

A developer is writing a Jest for a Lightning web component that conditionally displays child components based on a user's checkbox selections.What should the developer do to property test that the correct components display and hide for each scenario?

A : Reset the DOM after each test with the after Each method.

B : Add a teardown block to reset the DOM after each test.

C : Create a new describe block for each test

D : Create a new jsdom instance for each test

Answer: C

Question 2

Given the following code:Assuming there were 10 Contacts and five Accounts created today, what is the expected result?

A : System. QueryException: List has more than one row after Assignment on Account.

B : System. LimitException: To many SOQL Queries on Account.

C : System. QueryException: To many DML Statement errors on Contact

D : System. LimitException: Too many SOQL Queries on Contract

Answer: A

Question 3

What is the optimal syntax for adding a link to a case in a Visualforce page? (Choose two.)

A : < apex:outputLink value='{$URLFOR($Action.Case.Open, case)}' target='blank' > {lease.Name} < /apex:outputLink >

B : < apex:outputLink value='\/{!case.Id}' target='blank' > {lease.Name}< / apex:outputLink >

C : (LIE{!case.Name}

D : {lease.Name}

Answer: B,C

Question 4

A company has a custom object, Order__c, that has a required, unique, external ID field called Order_Number__c. Which statement should be used to perform the DML necessary to insert new records and update existing records in a List of Order__c records?

A : upsert orders;

B : merge orders;

C : merge orders Order_Number__c;

D : upsert orders Order_Number__c;

Answer: D

Question 5

Exhibit.A developer created a JavaScript function as a part of a Lightning web component (LWC) that surfaces information... about leads by imperatively calling getFetchLeadList when certain criteria are met.What are these changes the developer should implement in the Apex class above to ensure the LWC can displ... data efficiently while preserving security?Choose 3 answers

A : Annotate the Apex method with gAuraEnabled-

B : Annotate the Apex method with 8AuraEnabld (Cacheable-true).

C : Use the WITH SECURITY_ENFORCED clause within the SOQL query.

D : Implement the with sharing keyword in the class declaration.

E : Implement the without sharing keyword in the class declaration.

Answer: B,C,D

Page: 1 / 91

Total 455 Questions | Updated On: Sep 04, 2026

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