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
    :Jul 10, 2026

Salesforce DEX-450 Online Questions & Answers

  • Question 451:

    Which two SOSL searches will returns records matching search criteria contained in any of the searchable texts fields on an object? Choose 2 answers

    A. [FIND 'Acme*' RETURNING Account,Opportunity];
    B. [FIND 'Acme*' IN ANY FIELDS RETURNING Account,Opportunity];
    C. [FIND 'Acme*' IN TEXT FIELDS RETURNING Account,Opportunity];
    D. [FIND 'Acme*' IN ALL FIELDS RETURNING Account,Opportunity];

  • Question 452:

    Which aspect of Apex programming is limited due to multitenancy?

    A. The number of active Apex classes
    B. The number of methods in an Apex Class
    C. The number of records processed in a loop
    D. The number of records returned from database queries

  • Question 453:

    Developer needs to automatically populate the Reports To field in a Contact record based on the values of the related Account and Department fields in the Contact record. Which type of trigger would the developer create? Choose 2 answers

    A. Before update
    B. After insert
    C. Before insert
    D. After update

  • Question 454:

    A developer has an integer variable called maxAttempts. The developer meeds to ensure that once maxAttempts is initialized, it preserves its value for the lenght of the Apex transaction; while being able to share the variable's state between trigger executions. How should the developer declare maxAttempts to meet these requirements?

    A. Declare maxattempts as a member variable on the trigger definition.
    B. Declare maxattempts as a private static variable on a helper class
    C. Declare maxattempts as a constant using the static and final keywords
    D. Declare maxattempts as a variable on a helper class

  • Question 455:

    What is the requirement for a class to be used as a custom Visualforce controller?

    A. Any top-level Apex class that has a constructor that returns a PageReference
    B. Any top-level Apex class that extends a PageReference
    C. Any top-level Apex class that has a default, no-argument constructor
    D. Any top-level Apex class that implements the controller interface

  • Question 456:

    A developer is asked to write negative tests as part of the unit testing for a method that calculates a person's age based on birth date. What should the negative tests include?

    A. Assert that future dates are rejected by the method.
    B. Assert that past dates are accepted by the method.
    C. Assert that a null value is accepted by the method.
    D. Throwing a custom exception in the unit test.

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