[Q32-Q56] 100% Free DEX-450 Exam Dumps Use Real Salesforce Developer Dumps With 202 Questions!

100% Free DEX-450 Exam Dumps Use Real Salesforce Developer Dumps With 202 Questions!

Pass Your DEX-450 Exam Easily With 100% Exam Passing Guarantee [2025]

NEW QUESTION # 32
When an Account's custom picklist field called Customer Sentiment is changed to a value of "Confused", a new related Case should automatically be created.
Which two methods should a developer use to create this case? (Choose two.)

• A. Custom Button
• B. Apex Trigger
• C. Process Builder
• D. Workflow Rule

Answer: B,C

NEW QUESTION # 33
A company has a custom object, order__C, that has a required, unique external ID field called crder_number_c.
Which statement should be used to perform the DML necessary to insert new records and update existing records in a list of order_c records using the external ID field?

• A. upserrc orders Order Number_c;
• B. upsert orders:
• C. merge orders Order_Number_c;
• D. merge orders;

Answer: A

Explanation:
To perform DML operations that insert new records and update existing records in a list of Order__c records using the external ID field Order_Number__c, you should use:
Option D: upsert orders Order_Number__c;
Upsert Statement:
The upsert DML operation either inserts or updates records based on whether they already exist.
By specifying the external ID field (Order_Number__c), Salesforce will match existing records based on this field.
Syntax:
upsert orders Order_Number__c;
orders is the list of Order__c records.
Order_Number__c is the external ID field used for matching.
Reference:
"The upsert statement matches the sObjects with existing records by comparing values of one field. If you don't specify a field, the upsert statement uses the sObject's ID to match data."
- Apex Developer Guide: Upsert Statements
Why Other Options Are Incorrect:
Option A: merge orders;
The merge statement is used to merge up to three records of the same object type, combining them into one. It is not suitable for upserting multiple records.
Option B: merge orders Order_Number__c;
merge does not accept an external ID field as a parameter.
Option C: upsert orders;
While this will perform an upsert based on the record IDs, it will not use the external ID field Order_Number__c for matching, which may not find existing records without IDs.
Conclusion:
Using upsert orders Order_Number__c; correctly instructs Salesforce to insert or update records based on the external ID field.

NEW QUESTION # 34
Universal Containers recently transitioned from Classic to Lightning Experience.
One of its business processes requires certain values from the Opportunity cbject to be sent via an HTTP REST callout to its external order management system when the user presses a custom button on the Opportunity detail page. Example values are as follows:
* Name
* Amount
* Account
Which two methods should the developer implement to fulfill the business requirement?
Choose 2 answers

• A. Create an after update trigger on the Opportunity object that calls a helper method using @Future (Callour=true) to perform the HTTP REST callout.
• B. Create a custom Visualforce quick action that performs the HTTP REST callout, and use a Visualforce quick action to expose the component on the Opportunity detail page.
• C. Create a Remote Action on the Opportunity object that executes an Apex immediate action to perform the HTTP REST callout whenever the Opportunity Is updated.
• D. Create a Lightning component quick action that performs the HTTP REST callout, and use a Lightning Action to expose the component on the Opportunity detail page.

Answer: B,D

Explanation:
To send Opportunity values via an HTTP REST callout when a user presses a custom button in Lightning Experience:
Option B: Create a custom Visualforce quick action
A Visualforce page with a custom controller can perform the callout.
The Visualforce page can be added as a quick action on the Opportunity page.
A Lightning component can perform the callout when invoked.
The component can be added to the Opportunity page as a quick action.
Reference:
"You can use Visualforce to create custom quick actions."
- Salesforce Help: Quick Actions
Option C: Create a Lightning component quick action
"Use Lightning components to create custom actions that can be added to Lightning Experience and the Salesforce mobile app."
- Salesforce Help: Lightning Component Actions
Why Other Options Are Incorrect:
Option A:
Remote Actions are used in Visualforce for client-side calls and are not applicable here.
Performing the callout whenever the Opportunity is updated does not meet the requirement of initiating the action via a button click.
Option D:
An after-update trigger would execute on every update, not just when the user presses a button.
Using @future methods may not execute immediately and can't be invoked directly by the user action.

NEW QUESTION # 35
A developer must implement a checkpaymentpbrocaessox class that provides check processing payment capabilities that adhere to what is defined for payments in the paymentProcsssor Interface.

Which implementation is correct to use the paymenterocesscr interface class?

• A.
• B.
• C.

Answer: B

NEW QUESTION # 36
A custom object Trainer__c has a lookup field to another custom object Gym__c.
Which SOQL query will get the record for the Viridian City Gym and all it's trainers?

• A. SELECT Id, (SELECT Id FROM Trainers _c) FROM Gym_c WHERE Name = 'Viridian City Gym'
• B. SELECT Id, (SELECT Id FROM Trainer_c FROM Gym_c WHERE Name = 'Viridian City Gym"
• C. SELECT Id, (SELECT Id FROM Trainers _r) FROM Gym_c WHERE Name = 'Viridian City Gym'
• D. SELECT ID FROM Trainer_c WHERE Gym_r.Name = 'Viridian City Gym'

Answer: C

NEW QUESTION # 37
What should a developer use to script the deployment and unit test execution as part of continuous integration?

• A. Developer Console
• B. VS Code
• C. Execute Anonymous
• D. Salesforce CLI

Answer: D

Explanation:
To script the deployment and unit test execution as part of continuous integration (CI), developers use tools that can be automated and run from the command line or scripts.
Option D: Salesforce CLI
Correct.
The Salesforce CLI (Command-Line Interface) is a powerful command-line tool that allows developers to interact with Salesforce orgs.
It supports scripting of deployments using commands like sfdx force:source:deploy and running unit tests using sfdx force:apex:test:run.
The CLI can be integrated into CI/CD pipelines to automate deployments and testing.
While Visual Studio Code is a powerful IDE for Salesforce development, it is primarily used for interactive development.
It is not a scripting tool and is not suitable for automation in CI/CD pipelines.
The Developer Console is a web-based tool within Salesforce for interactive development and debugging.
It cannot be used for scripting or automation as part of CI/CD processes.
Execute Anonymous is used to run Apex code snippets in an ad-hoc manner.
It is not suitable for scripting deployments or unit test execution in CI/CD.
Reference:
Salesforce CLI Command Reference
Incorrect Options:
Option A: VS Code
Incorrect.
Salesforce Extensions for VS Code
Option B: Developer Console
Incorrect.
Developer Console Overview
Option C: Execute Anonymous
Incorrect.
Executing Anonymous Apex Code
Conclusion:
The correct tool for scripting deployment and unit test execution in CI/CD is Salesforce CLI.

NEW QUESTION # 38
A developer created a trigger on the Account object and wants to test if the trigger is properly bulkified. The developer team decided that the trigger should be tested with 200 account records with unique names.
What two things should be done to create the test data within the unit test with the least amount of code?
Choose 2 answers

• A. Create a static resource containing test data.
• B. Use Test.loadData to populate data in your test methods.
• C. Use the @isTest (seeAllData=true) annotation in the test class.
• D. Use the @isTest (isParallel=true) annotation in the test class.

Answer: A,B

Explanation:
To test the trigger with 200 account records with unique names using the least amount of code:
Option A: Use Test.loadData to populate data in your test methods.
Reference:
"Test.loadData lets you populate test records by loading the contents of a CSV file into sObjects for use in test methods."
- Apex Developer Guide: Using Test.loadData
Option B: Create a static resource containing test data.
"Create a static resource that contains the .csv file for the records you want to load."
- Apex Developer Guide: Loading Test Data from Static Resources
Why Other Options Are Incorrect:
Option C: The @isTest(isParallel=true) annotation is used to run tests in parallel but does not help in creating test data.
Option D: Using @isTest(seeAllData=true) allows access to existing org data, which is not recommended and does not help create unique test data with minimal code.

NEW QUESTION # 39
A developer needs to prevent the creation of Request__c records when certain coVraitions exist in the system. A RequeatLogic class exists that checks the conditions.
What is the correct implementation?

• A.
• B.
• C.
• D.

Answer: A

NEW QUESTION # 40
What is the result when a Visualforce page calls an Apex controller, which calls another Apex class, which then results in hitting a governor limit?

• A. All changes are saved in the first Apex class.
• B. All changes before a savepoint are saved.
• C. Any changes up to the error are saved.
• D. Any changes up to the error are rolled back.

Answer: D

NEW QUESTION # 41
A Visualforce page has a standard controller for an object that has a lookup relationship to a parent object. How can a developer display data from the parent record on the page?

• A. By adding a second standard controller to the page for the parent record.
• B. By using a roll-up formula field on the child record to include data from the parent record.
• C. By using merge field syntax to retrieve data from the parent record.
• D. By using SOQL on the Visualforce page to query for data from the parent record.

Answer: C

NEW QUESTION # 42
Which two practices should be used for processing records in a trigger? Choose 2 answers

• A. Use @future methods to handle DML operations.
• B. Use (callout=true) to update an external system
• C. Use a Map to reduce the number of SOQL calls
• D. Use a Set to ensure unique values in a query filter

Answer: C,D

NEW QUESTION # 43
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?

• A. Use the Open execute Anonymous feature on the Developer Console to run an 'insert Contact' DML statement
• B. Use the Test menu on the Developer Console to run all test classes for the Contact trigger
• C. Use the New button on the Salesforce Contacts Tab to create a new Contact record.
• D. Use Deploy from the VSCode IDE to display an 'insert Contact' Apex class.

Answer: B

NEW QUESTION # 44
Which two are best practices when it comes to Aura component and application event handling?
Choose 2 answers

• A. Try to use application events as opposed to component events.
• B. Handle low-level events in the event handler and re-fire them as higher-level events.
• C. Reuse the event logic in a component bundle, by putting the fogic in the helper.
• D. Use component events to communicate actions that should be handled at the application level.

Answer: B,C

Explanation:
Option C: Handle low-level events in the event handler and re-fire them as higher-level events.
True.
It's a best practice to encapsulate lower-level events and re-emit them as higher-level, application-specific events to decouple components and simplify event handling.
Placing reusable logic in the helper aids in maintaining clean code and promotes reusability across the component's controller and renderer.
Best practice recommends using component events when possible.
Application events should be used sparingly due to their performance impact and broader scope.
Component events are designed for parent-child communication.
For application-level communication, application events are appropriate.
Reference:
Lightning Components Best Practices
Option D: Reuse the event logic in a component bundle, by putting the logic in the helper.
True.
Helper Functions
Option A: Try to use application events as opposed to component events.
False.
Component Events vs. Application Events
Option B: Use component events to communicate actions that should be handled at the application level.
False.
Event Communication Patterns
Conclusion:
The best practices are C and D.

NEW QUESTION # 45
Which tool can deploy destructive changes to apex classes in production?

• A. Developer Console
• B. Salesforce setup
• C. Workbench
• D. Change sets

Answer: C

NEW QUESTION # 46
How is a controller and extension specified for a custom object named "Notice" on a Visualforce page?

• A. apex:page controller="Notice_c" extensions="myControllerExtension"
• B. apax:page=Notice extends="myControllerExtension''
• C. apax:page controllers="Norice_c, myConrrollerExtansicon"
• D. apex:page standardController="Notice__c" extensions="myConctrollerExtension"

Answer: D

Explanation:
When creating a Visualforce page that uses a standard controller and a controller extension for a custom object named Notice__c, the correct syntax is:
<apex:page standardController="Notice__c" extensions="myControllerExtension"> Option D: apex standardController="Notice__c" extensions="myControllerExtension" Correct Syntax.
standardController attribute specifies the standard controller for the custom object Notice__c.
extensions attribute specifies the name of the Apex class myControllerExtension that extends the functionality of the standard controller.
Reference:
Options Not Applicable:
Option A: apex
controller="Notice__c" extensions="myControllerExtension"
Incorrect.
The controller attribute is used for custom controllers, not standard controllers.
Option B and C:
Syntax errors and incorrect attributes make these options invalid.
Conclusion:
The correct way to specify a controller and extension for the Notice__c object is Option D.

NEW QUESTION # 47
Universal Container wants Opportunities to no longer be editable when itreaches the Closed/Won stage. Which two strategies can a developer use to accomplish this?
Choose2 answer

• A. Use a validation
• B. Use the Process Automation settings.
• C. Use a trigger
• D. Use an after-save flow.

Answer: A,C

NEW QUESTION # 48
A developer needs to create records for the object Property__c. The developer creates the following code block:List propertiesToCreate = helperClass.createProperties();try { // line 3 } catch (Exception exp ) { //exception handling }Which line of code would the developer insert at line 3 to ensure that at least some records are created, even if a few records have errors and fail to be created?

• A. Database.insert(propertiesToCreate, false);
• B. Database.insert(propertiesToCreate, System.ALLOW_PARTIAL);
• C. Database.insert(propertiesToCreate);
• D. insert propertiesToCreate;

Answer: A

NEW QUESTION # 49
An org has an existing Visual Flow that creates an Opportunity with an Update records element. A developer must update the Visual Flow also created a Contact and store the created Contact's ID on the Opportunity.

• A. Add a new Update records element
• B. Add a new Create records element.
• C. Add a new Get Records element.
• D. Add a new Quick Action (of type create) element.

Answer: B

NEW QUESTION # 50
Cloud Kicks Fitness, an ISV Salesforce partner, is developing a managed package application. One of the application modules allows the user to calculate body fat using the apex class, Bodyfat, and its method, calculateBodyfat(). The product owner wants to ensure this method is accessible by the consumer of the application when developing customizer outside the ISV's package namespace. Which approach should a developer take to ensure calculateBodyFat() is accessible outside the package namespace?

• A. Declare the class and method using the public access modifier.
• B. Declare the class and method using the global access modifier.
• C. Declare the class as public and use the global access modifier on the method.
• D. Declare the class as public and use the public access modifier on the method.

Answer: B

NEW QUESTION # 51
In the code below, which type does String inherit from? String s = 'Hello World';

• A. Class
• B. Object
• C. Object
• D. Prototype

Answer: B

NEW QUESTION # 52
Which annotation should a developer use on an Apex method to make it available to be wired to a property in a Lightning web component?

• A. @RemoteAction
• B. @AuraEnabled(cacneable=true)
• C. @AuraEnabled
• D. @RemoteAction (cacheable-true)

Answer: B

NEW QUESTION # 53
Which action can a developer perform in a before update trigger? (Choose 2)

• A. Delete the original object using a delete DML operation.
• B. Change field values using the Trigger.new context variable.
• C. Display a custom error message in the application interface.
• D. Update the original object using an update DML operation.

Answer: B,C

NEW QUESTION # 54
Which Lightning code segment should be written to declare dependencies on a Lightning component, c:accountList, that is used in a Visualforce page?

• A.
• B.
• C.
• D.

Answer: A

NEW QUESTION # 55
Managers at Universal Containers want to ensure that only decommissioned containers are able to be deleted in the system. To meet the business requirement a Salesforce developer adds "Decommissioned" as a picklist value for the status__c custom field within the Container__c object.
Which two approaches could a developer use to enforce only Container records with a status of "Decommissioned" can be deleted?
Choose 2 answers

• A. After record-triggered flow
• B. validation rule
• C. Before record-triggered flow
• D. Apex trigger

Answer: C,D

Explanation:
To enforce that only Container__c records with a status of "Decommissioned" can be deleted, we need to prevent deletion of records unless they meet this criteria.
Possible Approaches:
Option A: Apex Trigger
Correct.
An Apex before delete trigger can be written to check the Status__c field of each record being deleted.
If the status is not "Decommissioned," the trigger can add an error to prevent deletion.
trigger PreventContainerDeletion on Container__c (before delete) {
for (Container__c container : Trigger.old) {
if (container.Status__c != 'Decommissioned') {
container.addError('Only decommissioned containers can be deleted.');
}
}
}
A before delete flow can be created to check the Status__c field.
If the status is not "Decommissioned," the flow can prevent deletion by adding an error.
Validation rules fire on insert and update operations, not on delete.
They cannot prevent deletion of records.
After delete flows cannot prevent a deletion because the record has already been deleted.
Only before delete flows can prevent deletion.
Reference:
Apex Triggers
Option D: Before Record-Triggered Flow
Correct.
Record-Triggered Flows
Add an Error to Stop a Record from Being Deleted
Incorrect Options:
Option B: Validation Rule
Incorrect.
Validation Rule Considerations
Option C: After Record-Triggered Flow
Incorrect.
Flow Trigger Order
Conclusion:
To enforce the deletion restriction, the developer can use an Apex trigger or a before delete record-triggered flow, which are options A and D.

NEW QUESTION # 56
......

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