Free DEX-403 Mock Exam – Practice Online Confidently

Increase your chances of passing the Salesforce DEX-403 exam questions on your first try. Practice with our free online DEX-403 exam mock test designed to help you prepare effectively and confidently.

Exam Code: DEX-403
Exam Questions: 654
Declarative Development for Platform App Builders in Lightning Experience (WI25)
Updated: 23 May, 2026
Question 1

Which of the following are advantages to using Lightning Process Builder over Workflow rules? (Choose two.)

Options :
Answer: A,D

Question 2

On the Account Lightning record page, users need to see ten fields and the ability to sort and wrap text on their Related Lists. What Related List type would the app builder select for the Related List Lightning component?

Options :
Answer: A

Question 3

What are two reasons to create an unmanaged package? (Choose two.) 

Options :
Answer: C,D

Question 4

An app builder installs an unmanaged package in a full copy sandbox that is an exact match for production, and now they are ready to install it m production. When the app builder attempts to install the package in production, it fails. Why did the package fail to install?

Options :
Answer: D

Question 5

DreamHouse Realty (DR) has many properties for sale and wants to identify the highest value of all Offer__c records on each Property__c record.
What solution should the app builder use to meet DreamHouse Realty's needs?

Options :
Answer: A

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