2025 UPDATED SALESFORCE DEX-450: VALID PROGRAMMATIC DEVELOPMENT USING APEX AND VISUALFORCE IN LIGHTNING EXPERIENCE EXAM PATTERN

2025 Updated Salesforce DEX-450: Valid Programmatic Development using Apex and Visualforce in Lightning Experience Exam Pattern

2025 Updated Salesforce DEX-450: Valid Programmatic Development using Apex and Visualforce in Lightning Experience Exam Pattern

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Salesforce DEX-450 is an industry-recognized certification exam designed for professionals who want to showcase their knowledge and expertise in programmatic development using Apex and Visualforce in Salesforce's Lightning Experience. DEX-450 Exam is aimed at Salesforce developers who have already gained experience in building custom applications on the Force.com platform and are now looking to validate their skills in programmatic development.

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Salesforce Programmatic Development using Apex and Visualforce in Lightning Experience Sample Questions (Q157-Q162):

NEW QUESTION # 157
A developer needs to allow users to complete a form on an Account record that will create a record for a custom object.
The form needs to display different fields depending on the user's job role. The functionality should only be available to a small group of users.
Which three things should the developer do to satisfy these requirements?
Choose 3 answers

  • A. Create a Dynamic Form,
  • B. Create a Custom Permission for the users.
  • C. Add a Dynamic Action to the Users' assigned Page Layouts.
  • D. Create a Lightning wet> component.
  • E. Add a Dynamic Action to the Account Record Page.

Answer: A,B,E


NEW QUESTION # 158
When a user edits the Postal Code on an Account, a custom Account text field named "Timezone" must be updated based on the values in a PoataliCodeToTimezcone o custom object.
Which two automation tools can be used to implement this feature?
Choose 2 answers

  • A. Quick actions
  • B. Account trigger
  • C. Approval process
  • D. Fast Field Updates record-triggered flow

Answer: B,D

Explanation:
To update the Timezone__c field on Account based on the Postal Code and values from PostalCodeToTimezone__c:
Option B: Account Trigger
An Apex trigger can query the PostalCodeToTimezone__c object and update the Timezone__c field when the Postal Code is changed.
A record-triggered flow that runs after the record is saved can perform a Get Records action to retrieve the matching PostalCodeToTimezone__c record and update the Timezone__c field.
Reference:
"Triggers enable you to perform custom actions before or after changes to Salesforce records."
- Apex Developer Guide: Triggers
Option D: Record-Triggered Flow (after-save)
"After-save flows can access other records and perform actions, such as create or update records."
- Salesforce Help: Record-Triggered Flows
Why Other Options Are Incorrect:
Option A: Quick Actions
Quick actions are initiated by the user and cannot automate field updates based on changes.
Option C: Approval Process
Approval processes are for record approval and are not suitable for automating field updates based on field changes.


NEW QUESTION # 159
Which two characteristics are true for Aura component events? Choose 2 answers

  • A. If a container component needs to handle a component event, add a includeFacets" true" attribute to its handler.
  • B. By default, containers can handle events thrown by components they contain.
  • C. The event propagates to every owner in the containment hierarchy.
  • D. Depending on the current propagation phase, calling event. Stoppropagation () may not stop the event propagation.

Answer: C,D


NEW QUESTION # 160
What is a capability of formula fields? (Choose 3)

  • A. Determine if a datetime field has passed using the NOW function.
  • B. Display the previous values for a field using the PRIORVALUE function.
  • C. Return and display a field value from another object using the VLOOKUP function.
  • D. Generate a link using the HYPERLINK function to a specific record in a legacy system.
  • E. Determine which of three different images to display using the IF function.

Answer: A,D,E


NEW QUESTION # 161
A developer migrated functionality from JavaScript Remoting to a Lightning web component and wants to use the existing getOpportunities() method to provide data.
What to do now?

  • A. The method must be decorated with (cacheable=true).
  • B. The method must return a String of a serialized JSON Array.
  • C. The method must be decorated with @AuraEnabled.
  • D. The method must return a JSON Object.

Answer: A


NEW QUESTION # 162
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