Free Sales Ending Soon - Use Real DEX-450 PDF Questions [Dec 13, 2025]
Updated Dec-2025 Exam DEX-450 Dumps - Pass Your Certification Exam
NEW QUESTION # 108
A developer wants to import 500 Opportunity records into a sandbox.
Why should the developer choose to use Data Loader instead of Data Import Wizard?
- A. Data Import Wizard can not import all 500 records.
- B. Data Loader automatically relates Opportunities to Accounts.
- C. Data Import Wizard does not support Opportunities.
- D. Data Loader runs from the developer's browser,
Answer: C
Explanation:
Option A: Data Import Wizard does not support Opportunities.
Reference:
"You can import data for Account, Contact, Lead, Solution, Campaign Member, and Custom Objects with the Data Import Wizard."
- Salesforce Help: Data Import Wizard
Why Other Options Are Incorrect:
Option B: Data Loader does not automatically relate Opportunities to Accounts. You need to provide the AccountId when importing Opportunities.
Option C: Data Loader is a client application that you install and run on your local machine, not from a browser.
Option D: Data Import Wizard can import up to 50,000 records, so importing 500 records is within its capabilities.
NEW QUESTION # 109
What should a developer use to fix a Lightning web component bug in a sandbox?
- A. Developer Console
- B. Force.com IDE
- C. VS Code
- D. Execute Anonumous
Answer: C
NEW QUESTION # 110
A custom Visualforce controller calls the ApexPages,addMessage () method, but no messages are rendering on the page.
Which component should be added to the Visualforce page to display the message?
- A. <Apex: facet name='' message''/>
- B. <Apex: message for='' info''/>
- C. <apex: pageMessage severity="info''/>
- D. <apex: pageMessages />
Answer: D
NEW QUESTION # 111
Universal Containers decides to use exclusively declarative development to build out a new Salesforce application.
Which three options should be used to build out the database layer for the application?
Choose 3 answers
- A. Triggers
- B. Relationships
- C. Custom objects and fields
- D. Flows
- E. Roll-up summaries
Answer: B,C,E
NEW QUESTION # 112
A developer has a Apex controller for a Visualforce page that takes an ID as a URL parameter. How should the developer prevent a cross site scripting vulnerability?
- A. String.ValueOf(ApexPages.currentPage() .getParameters() .get('url_param'))
- B. ApexPages.currentPage() .getParameters() .get('url_param')
- C. ApexPages.currentPage() .getParameters() .get('url_param') .escapeHtml4()
- D. String.escapeSingleQuotes(ApexPages.currentPage() .getParameters(). get('url_param'))
Answer: C
NEW QUESTION # 113
Which three operations affect the number of times a trigger can fire?
Choose 3 answers
- A. Roll-Up Summary fields
- B. Process Flows
- C. Workflow Rules
- D. Criteria-based Sharing calculations
- E. Email messages
Answer: A,B,C
NEW QUESTION # 114
A development team wants to use a deployment script lo automatically deploy lo a sandbox during their development cycles.
Which two tools can they use to run a script that deploys to a sandbox?
Choose 2 answers
- A. SFDX CLI
- B. Developer Console
- C. Change Sets
- D. VS Code
Answer: A,D
NEW QUESTION # 115
In which order does Salesforce execute events upon saving a record?
- A. Before Triggers; Validation Rules; After Triggers; Assignment Rules; Workflow Rules; Commit
- B. Validation Rules; Before Triggers; After Triggers; Assignment Rules; Workflow Rules; Commit
- C. Validation Rules; Before Triggers; After Triggers; Workflow Rules; Assignment Rules; Commit
- D. Before Triggers; Validation Rules; After Triggers; Workflow Rules; Assignment Rules; Commit
Answer: A
NEW QUESTION # 116
Which two queries can a developer use in a visualforce controller to protect against SOQL injection Vulnerabilities? Choose 2 answers
- A. String qryName = '%' + String.enforceSecurityChecks(name)+ '%'; String qryString = 'SELECT Id FROM Contact WHERE Name LIKE :qryNAme'; List queryResults = Database.query(qryString);
- B. String qryName = '%' + name '%'; String qryString = 'SELECT Id FROM Contact WHERE Name LIKE :qryNAme'; List queryResults = Database.query(qryString);
- C. String qryName = '%' + String.escpaeSingleQuotes(name)+ '%'; String qryString = 'SELECT Id FROM Contact WHERE Name LIKE :qryNAme'; List queryResults = Database.query(qryString);
- D. String qryString = 'SELECT Id FROM Contact WHERE Name LIKE :qryNAme'; List queryResults = Database.query(qryString);
Answer: A,D
NEW QUESTION # 117
A visualforce interface is created for Case Management that includes both standard and custom functionality defined in an Apex class called myControllerExtension. The visualforce page should include which <apex:page> attribute(s) to correctly implement controller functionality?
- A. Controller=" myControllerExtension"
- B. Controller = "case" and extensions =" myControllerExtension"
- C. Extensions=" myControllerExtension"
- D. StandardController = "case" and extensions =" myControllerExtension"
Answer: D
NEW QUESTION # 118
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?
- A. Write a trigger on the child object and use an aggregate function to sum the amount for all related child objects under the Opportunity.
- B. Use the Metadata API to create real-time roll-up summaries.
- C. Write a trigger on the Opportunity object and use tree sorting to sum the amount for all related child objects under the Opportunity.
- D. Use the Streaming API to create real-time roll-up summaries.
Answer: A
NEW QUESTION # 119
A developer must implement a CheckPaymentProcessor class that provides check processing payment capabilities that adhere to what defined for payments in the PaymentProcessor interface. public interface PaymentProcessor { void pay(Decimal amount); } Which is the correct implementation to use the PaymentProcessor interface class?
- A. Public class CheckPaymentProcessor extends PaymentProcessor {
public void pay(Decimal amount) {}
} - B. Public class CheckPaymentProcessor extends PaymentProcessor {
public void pay(Decimal amount);
} - C. Public class CheckPaymentProcessor implements PaymentProcessor {
public void pay(Decimal amount) {}
} - D. Public class CheckPaymentProcessor implements PaymentProcessor {
public void pay(Decimal amount);
}
Answer: C
NEW QUESTION # 120
A developer needs to create a custom Interface in Apex.
Which three considerations must the developer keep in mind while developing the Apex Interface?
Choose 3 answers
- A. The Apex class must be declared using the interface keyword.
- B. New methods can be added to a public interface within a released package.
- C. A method defined In an Apex Interface cannot have an access modifier.
- D. The Apex interface class access modifier can be set to Private, Public, or Global.
- E. A method implementation can be defined within the Apex Interface.
Answer: A,C,E
NEW QUESTION # 121
Universal Containers decided to transition from Classic to Lightning Experience. They asked a developer to replace a JavaScript button that was being used to create records with prepopulated values.
What can the developer use to accomplish this?
- A. Apex triggers
- B. Record triggered flows
- C. Quick Actions
- D. Validation rules
Answer: C
Explanation:
To replace a JavaScript button from Salesforce Classic that creates records with prepopulated values in Lightning Experience, the developer can use:
Option A: Quick Actions
Quick Actions (Specifically, Object-Specific Actions):
Quick Actions allow users to perform actions, such as creating or updating records, from a record page or global context.
Prepopulating Fields:
You can predefine field values in Quick Actions using predefined values or by utilizing Lightning Component actions.
Reference:
"You can set predefined values for fields on the action layout, which lets you specify default values for the new record."
- Salesforce Help: Predefined Field Values for Quick Actions
Why Other Options Are Less Suitable:
Option B: Validation Rules
Validation rules enforce data integrity but do not create records or prepopulate values.
Option C: Record-Triggered Flows
Flows can automate processes but are not a direct replacement for buttons that create records with prepopulated values from the UI.
Option D: Apex Triggers
Triggers execute logic in response to DML events but are not used to create UI components or replace buttons.
Conclusion:
Quick Actions are the recommended way to replicate the functionality of JavaScript buttons in Lightning Experience.
NEW QUESTION # 122
In terms of the MVC paradigm, what are two advantages of implementing the layer of a Salesforce application using Aura Component-based development over Visualforce? Choose 2 answers
- A. Self-contained and reusable units of an application (Missed)
- B. Server-side run-time debugging
- C. Rich component ecosystem (Missed)
- D. Automatic code generation
Answer: A,C
NEW QUESTION # 123
Universal Containers wants to assess the advantages of declarative development versus programmatic customization for specific use cases in its Salesforce implementation.
What are two characteristics of declarative development over programmatic customization? Choose 2 answers
- A. Declarative code logic does not require maintenance or review.
- B. Declarative development does not require Apex test classes.
- C. Declarative development can be done using the setup menu.
- D. Declarative development has higher design limits and query limits.
Answer: B,C
NEW QUESTION # 124
Universal Containers (UC) uses out-of-the-box order management, that has a Master-Detail relationship between Order and Order Line Item.
UC stores the availability date on each Order Line Item and Orders are only shipped when all of the Order Line Items are available.
Which method should be used to calculate the estimated ship date for an Order?
- A. Use a MAX Roll-Up Summary field on the latest availability date fields.
- B. Use a CEILING formula on each of the latest availability date fields.
- C. Use a DAYS formula on each of the availability date fields and a COUNT Roll-Up Summary field on the Order.
- D. Use a LATEST formula on each of the latest availability date fields.
Answer: A
Explanation:
Universal Containers (UC) wants to calculate the estimated ship date for an Order, which should be the date when all Order Line Items are available. The availability date is stored on each Order Line Item.
Given that the relationship between Order and Order Line Item is Master-Detail, we can leverage Roll-Up Summary Fields to perform calculations on the child records (Order Line Items) and summarize them on the parent record (Order).
Option A: Use a MAX Roll-Up Summary field on the latest availability date fields.
Correct Approach.
Create a Roll-Up Summary Field on the Order object.
Use the MAX function to calculate the latest availability date among all related Order Line Items.
The Roll-Up Summary Field will display the maximum (latest) availability date, which represents the date when all items are available.
This date can be used as the estimated ship date for the Order since the Order can only be shipped when all items are available.
Benefits:
Declarative Solution: No code required.
Real-Time Calculation: Automatically updates when Order Line Items change.
The CEILING function returns the smallest integer greater than or equal to a number.
It is used with numerical values, not date fields.
Does not help in calculating the latest date among multiple dates.
Option C: Use a LATEST formula on each of the latest availability date fields.
Non-Existent Function.
There is no LATEST function available in Salesforce formula fields.
Cannot be used to calculate dates.
Option D: Use a DAYS formula on each of the availability date fields and a COUNT Roll-Up Summary field on the Order.
Does Not Address the Requirement.
The DAYS function returns the number of days between two dates.
Using COUNT Roll-Up Summary counts the number of child records but does not help in finding the latest date.
This approach does not calculate the estimated ship date based on the latest availability date.
Conclusion:
Using a MAX Roll-Up Summary Field on the Order object to find the latest availability date among Order Line Items is the appropriate method.
This method efficiently calculates the estimated ship date for an Order based on when all items are available.
Reference:
Roll-Up Summary Fields
Defining Roll-Up Summary Fields
Why Other Options are Not Suitable:
Option B: Use a CEILING formula on each of the latest availability date fields.
Incorrect Function Usage.
NEW QUESTION # 125
Given the following block code: try{ List <Accounts> retrievedRecords = [SELECT Id FROM Account WHERE Website = null]; }catch(Exception e){ //manage exception logic } What should a developer do to ensure the code execution is disrupted if the retrievedRecordslist remains empty after the SOQL query?
- A. Replace the retrievedRecords variable declaration from a List of Account to a single Account.
- B. Check the state of the retrieveRecords variable and throw a custom exception if the variable is empty.
- C. Check the state of the retrievedRecords variable and use System.assert(false) if the variable is empty
- D. Check the state of the retrievedRecords variable and access the first element of the list if the variable is empty.
Answer: C
NEW QUESTION # 126
Universal Containers wants Opportunities to no longer be editable when it reaches the Closed/Won stage.
Which two strategies can a developer use to accomplish this?
Choose 2 answers
- A. Use an after-save flow.
- B. Use a validation rule.
- C. Use the Process Automation settings.
- D. Use a trigger.
Answer: B,D
NEW QUESTION # 127
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