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Free DEX-450 Mock Exam – Practice Online Confidently

Increase your chances of passing the Salesforce DEX-450 exam questions on your first try. Practice with our free online DEX-450 exam mock test designed to help you prepare effectively and confidently.

Exam Code: DEX-450
Exam Questions: 387
Programmatic Development using Apex and Visualforce in Lightning Experience (WI25)
Updated: 25 Nov, 2025
Question 1

While working in a sandbox, an Apex test fails when run in the Test Runner. However, executing the Apex logic in the Execute Anonymous window succeeds with no exceptions or errors. Why did the method fail in the sandbox test framework but succeed in the Developer Console?

Options :
Answer: D

Question 2

Universal Hiring is using Salesforce to capture job applications. A salesforce administrator created two custom objects; Job c acting as the master object, Job application.__: acting as the detail.
What is the recommended tool a developer should use to meet the business requirement?

Options :
Answer: C

Question 3

A team of developers is working on a source-driven project that allows them to work independently, with many different org configurations. Which type of Salesforce orgs should they use for their development?

Options :
Answer: B

Question 4

Cloud kicks has a multi-screen flow that its call center agents use when handling inbound service desk calls.
At one of the steps in the flow, the agents should be presented with a list of order numbers and dates that are retrieved from an external order management system in real time and displayed on the screen.
What should a developer use to satisfy this requirement?

Options :
Answer: B

Question 5

A developer created a custom order management app that uses an Apex class. The order is represented by an Order object and an Orderltem object that has a master-detail relationship to Order. During order processing, an order may be split into multiple orders.What should a developer do to allow their code to move some existing Orderltem records to a new Order record?

Options :
Answer: D

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