Free DEX-450 Mock Exam – Practice Online Confidently

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Exam Code: DEX-450
Exam Questions: 387
Programmatic Development using Apex and Visualforce in Lightning Experience (WI25)
Updated: 03 Apr, 2026
Question 1

A company has a custom object, Sales, }_Help_Request__c, that has a Lookup relationship to Opportunity. The Seles Help Request__c has a mumber field, Number_ct_Hours__c, that represents the amount of time spent on the Sales_Help Request__C.A developer is tasked with creating a field, total_Hour2__c, on Opportunity that should be the sum of all of the Number_of_Hours_c values for the Sales_Help_Request__c records related to that Opportunity.What should the developer use to implement this?

Options :
Answer: B

Question 2

A developer created a child Lightning web component nested inside a parent Lightning web component, parent component needs to pass a string value to the child component.
In which two ways can this be accomplished?
Choose 2 answers

Options :
Answer: A,D

Question 3

As part of a data cleanup strategy, AW Computing wants to proactively delete associated opportunity records when the related Account is deleted.
Which automation tool should be used to meet this business requirement?

Options :
Answer: C

Question 4

In the following example, which sharing context will myMethod execute when it is invoked?

Options :
Answer: A

Question 5

A developer needs to confirm that a Contact trigger works correctly without changing the organization's dat
a. what should the developer do to test the Contact trigger?

Options :
Answer: D

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