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 301:

    A developer runs the following anonymous code block in a Salesforce org with 100 accounts List acc= {select id from account limit 10}; delete acc; database.emptyrecyclebin(acc); system.debug(limits.getlimitqueries()+' ,'+Limits.getlimitDMLStatements()); What is the debug output?

    A. 1, 2
    B. 10, 2
    C. 100, 150
    D. 150, 100

  • Question 302:

    An Account trigger updates all related Contacts and Cases each time an Account is saved using the following two DML statements:

    update allContacts; update allCases;

    What is the result if the Case update exceeds the governor limit for maximum number of DML records?

    A. The Account save succeeds, Contacts are updated, but Cases are not.
    B. The Account save fails and no Contacts or Cases are updated
    C. The Account save is retried using a smaller trigger batch size.
    D. The Account save succeeds and no Contacts or Cases are updated

  • Question 303:

    A developer is creating a test coverage for a class and needs to insert records to validate functionality. Which method annotation should be used to create records for every method in the test class?

    A. @BeforeTest
    B. @isTest(SeeAllData=True)
    C. @TestSetup
    D. @PreTest

  • Question 304:

    A developer has javascript code that needs to be called by controller functions in multiple components by extending a new abstract component. Which resource in the abstract component bundle allows the developer to achieve this

    A. Controller.js
    B. Superrender.js
    C. Rendered.js
    D. Helper.js

  • Question 305:

    Universal Containers wants a list button to display a Visualforce page that allows users to edit multiple records. Which Visualforce feature supports this requirement?

    A. tag
    B. Custom controller
    C. RecordSetVar page attribute
    D. Controller extension

  • Question 306:

    Which process automation should be used to send an outbound message without using Apex code?

    A. Workflow Rule
    B. Process Builder
    C. Approval Process
    D. Flow Builder

  • Question 307:

    Candidates are reviewed by four separate reviewers and their comments and scores which range from 1 (lowest) to 5 (highest) are stored on a review record that is a detail record for a candidate what is the best way to indicate that a combined review score of 15 of better is required to recommend that the candidate come in for an interview?

    A. Use a validation rule on a total score field on the candidate record that prevents a recommended field from being true if the total score is less than 15
    B. Use a workflow rule to calculate the sum of the review scores and send an email to the hiring manager when the total is 15 or better
    C. Use visual workflow to set a recommended field on the candidate whenever the cumulative review score is 15 or better
    D. Use a rollup summary field to calculates the sum of the review scores, and store this in a total score field on the candidate

  • Question 308:

    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; Workflow Rules; Assignment Rules; Commit
    C. Before Triggers; Validation Rules; After Triggers; Workflow Rules; Assignment Rules; Commit
    D. Validation Rules; Before Triggers; After Triggers; Assignment Rules; Workflow Rules; Commit

  • Question 309:

    Which two platform features align to the Controller portion of MVC architecture? (Choose two.)

    A. Process Builder actions
    B. Workflow rules
    C. Standard objects
    D. Date fields

  • Question 310:

    A Lightning component has a wired property, searcResults, that stores a list of Opportunities. Which definition of the Apex method, to which the searchResults property is wired, should be used?

    A. @AuraEnabled(cacheable=true) public static List search(String term) { /* implementation*/ }
    B. @AuraEnabled(cacheable=true) public List search(String term) { /*implementation*/ }
    C. @AuraEnabled(cacheable=false) public static List search(String term) { /*implementation*/ }
    D. @AuraEnabled(cacheable=false) public List search(String term) { /*implementation*/ }

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