DEX-450 Exam Details

  • Exam Code
    :DEX-450
  • Exam Name
    :Programmatic Development using Apex and Visualforce in Lightning
  • Certification
    :Salesforce Certifications
  • Vendor
    :Salesforce
  • Total Questions
    :456 Q&As
  • Last Updated
    :May 29, 2026

Salesforce DEX-450 Online Questions & Answers

  • Question 211:

    What can a Lightning Component contain in its resource bundle? Choose 2 answer

    A. Custom client side rendering behavior.
    B. Build scripts for minification
    C. Properties files with global settings
    D. CSS styles scoped to the component

  • Question 212:

    A developer created a Lightning component to display a short text summary for an object and wants to use it with multiple Apex classes. How should the developer design the Apex classes?

    A. Have each class define method getObject() that returns the sObject that is controlled by the Apex class.
    B. Extend each class from the same base class that has a method getTextSummary() that returns the summary.
    C. Have each class implement an interface that defines method getTextSummary() that returns the summary.
    D. Have each class define method getTextSummary() that returns the summary.

  • Question 213:

    Which tool allows a developer to send requests to the Salesforce REST APIs and view the responses?

    A. REST resource path URL
    B. Workbench REST Explorer
    C. Developer Console REST tab
    D. Force.com IDE REST Explorer tab

  • Question 214:

    A developer wants to retrieve the Contacts and Users with the email addres '[email protected]'. Which SOSL statement should the developer use?

    A. FIND {[email protected]} IN Email Fields RETURNING Contact (Email), User (Email)
    B. FIND {Email = '[email protected]'} IN Contact, User
    C. FIND {Email = '[email protected]'} RETURNING Contact (Email), User (Email)
    D. FIND Email IN Contact, User FOR {dev2uc.com}

  • Question 215:

    Universal Containers has large number of custom applications that were built using a third-party javaScript framework and exposed using Visualforce pages. The Company wants to update these applications to apply styling that resembles the look and feel of Lightning Experience. What should the developer do to fulfill the business request in the quickest and most effective manner?

    A. Incorporate the Salesforce Lightning Design System CSS stylesheet into the JavaScript applications.
    B. Rewrite all Visualforce pages asLightning components.
    C. Set the attribute enableLightning to treu in the definition.
    D. Enable Available for Lightning Experience, Lightning Comminities, and the mobile app on Visualforce pages used by the custom application.

  • Question 216:

    Which two number expression evaluate correctly? Choose 2 answers

    A. Integer I = 3.14159;
    B. Decimal D = 3.14159;
    C. Long I = 3.14159;
    D. Double D =3.14159;

  • Question 217:

    What is the easiest way to verify a user before showing them sensitive content?

    A. Sending the user a SMS message with a passcode.
    B. Calling the generateVerificationUrl method in apex.
    C. Sending the user an Email message with a passcode.
    D. Calling the Session.forcedLoginUrl method in apex.

  • Question 218:

    What are three techniques that a developer can use to invoke an anonymous block of code? Choose 3 answers

    A. Create a visualforce page that uses a controller class that is declared without sharing
    B. Type code into the developer console and execute it directly
    C. Type code into the execute anonymous tab in the force.com IDE and click execute
    D. Use the SOAP API to make a call to execute anonymous code
    E. Create and execute a test method that does not specify a runas() call

  • Question 219:

    The sales team at universal container would like to see a visual indicator appear on both account and opportunity page layout to alert salespeople when an account is late making payments or has entered the collections process. What can a developer implement to achieve this requirement without having to write custom code?

    A. Workflow rule
    B. Formula field
    C. Roll-up summary field
    D. Quick action

  • Question 220:

    How would a developer determine if a CustomObject__c record has been manually shared with the current user in Apex?

    A. By querying the role hierarchy.
    B. By calling the isShared() method for the record.
    C. By querying CustomObject__Share.
    D. By calling the profile settings of the current user.

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