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Exam Code: DEX-450
Exam Questions: 387
Programmatic Development using Apex and Visualforce in Lightning Experience (WI25)
Updated: 15 Apr, 2026
Viewing Page : 1 - 39
Practicing : 1 - 5 of 387 Questions
Question 1

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 >

Options :
Answer: A

Question 2

A developer wrote an Apex method to update a list of Contacts and wants to make it available for use by Lightning web components.Which annotation should the developer add to the Apex method to achieve this?

Options :
Answer: B

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?

Options :
Answer: C

Question 4

A developer has the following requirements:
* Calculate the total amount on an Order.
* Calculate the line amount for each Line Item based on quantity selected and price.
* Move Line Items to a different Order if a Line Item is not in stock.
Which relationship implementation supports these requirements on its own7

Options :
Answer: A

Question 5

A developer has an integer variable called maxAttempts. The developer meeds to ensure that once maxAttempts is initialized, it preserves its value for the lenght of the Apex transaction; while being able to share the variable's state between trigger executions. How should the developer declare maxAttempts to meet these requirements?

Options :
Answer: C

Viewing Page : 1 - 39
Practicing : 1 - 5 of 387 Questions

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