Free Salesforce DEX-450 Exam Actual Questions

The questions for DEX-450 were last updated On May 4, 2025

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Question No. 1

A developer created these three Rollup Summary fields in the custom object, Project__c:

The developer is asked to create a new field that shows the ratio between rejected and approved timesheets for a given project.

Which should the developer use to implement the business requirement in order to minimize maintenance overhead?

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Correct Answer: A

Question No. 2

What are two use cases for executing Anonymous Apex code?

Choose 2 answers

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Correct Answer: A, C

Question No. 3

Universal Containers wants to ensure that all new leads created in the system have a valid email address. They have already created a validation rule to enforce this requirement, but want to add an additional layer of validation using automation.

What would be the best solution for this requirement?

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Correct Answer: B

Before-save Apex Trigger:

This is the best solution because a before-save trigger runs before the record is saved to the database, providing an opportunity to validate or modify the data.

In this case, the Apex trigger can validate the email address using a regular expression or a third-party API call to ensure the email address is valid. If the email is invalid, an error message can be displayed using addError().

Why not the other options?

A . Submit a REST API Callout with a JSON payload:

REST callouts are more complex and generally not recommended for simple validation tasks like email format validation. Additionally, callouts cannot be performed directly in a before-save trigger.

C . Use a custom Lightning Web Component (LWC):

LWCs are primarily for UI interactions and should not be used to enforce data validations that are server-side requirements.

D . Use an Approval Process:

Approval Processes are for managing the approval flow of records, not for real-time validations. They cannot enforce email validation directly.


Apex Triggers Documentation

Trigger Context Variables

Question No. 4

An Opportunity needs to have an amount rolled up from a custom object that is not in a master-detail relationship.

How can this be achieved?

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Correct Answer: C

Question No. 5

A developer wants to send an outbound message when a record meets a specific criteria.

Which two features satisfy this use case?

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Correct Answer: B, C