Smartly Prepare Exam with Free Online DEX-450 Practice Test

We offer the latest DEX-450 practice test designed for free and effective online Programmatic Development using Apex and Visualforce in Lightning Experience (WI25) certification preparation. It's a simulation of the real DEX-450 exam experience, built to help you understand the structure, complexity, and topics you'll face on exam day.

Exam Code: DEX-450
Exam Questions: 387
Programmatic Development using Apex and Visualforce in Lightning Experience (WI25)
Updated: 08 Jul, 2025
Viewing Page : 1 - 39
Practicing : 1 - 5 of 387 Questions
Question 1

A developer writes a trigger on the Account object on the before update event that increments a count field. A workflow rule also increments the count field every time that an Account is created or updated. The field update in the workflow rule is configured to not re-evaluate workflow rules.
What is the value of the count field if an Account is inserted with an initial value of zero, assuming no other automation logic is implemented on the Account?

Options :
Answer: D

Question 2

A company has been adding data to Salesforce and has not done a good Job of limiting the creation of duplicate Lead records. The developer is considering writing an Apex process to identify duplicates and merge the records together.
Which two statements are valid considerations when using merged?
Choose 2 answers

Options :
Answer: B,D

Question 3

Use @TestVisible to allow the test method to see the standard PriceBook.

Options :
Answer: B

Question 4

What are two benefits of using declarative customizations over code? Choose 2 answers
What are two benefits of using declarative customizations over code?

Options :
Answer: A,C

Question 5

Which two events need to happen when deploying to a production org? Choose 2 answers

Options :
Answer: A,B

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

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