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The DEX-450 Exam is an essential certification for developers who want to demonstrate their expertise in programmatic development using Apex and Visualforce in Lightning Experience. This credential can help professionals advance their careers, build their reputation in the industry, and gain recognition as experts in Salesforce development.

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Salesforce Programmatic Development using Apex and Visualforce in Lightning Experience Sample Questions (Q44-Q49):

NEW QUESTION # 44
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.

Answer: C

NEW QUESTION # 45
A developer has the following code block:
public class PaymentTax {public static decimal SalesTax = 0.0875;} trigger OpportunityLineItemTrigger on OpportunityLineItem (before insert, before update) {PaymentTax PayTax = new PaymentTax();decimal ProductTax = ProductCost * XXXXXXXXXXX;} To calculate the productTax, which code segment would a developer insert at the XXXXXXXXXXX to make the value the class variable SalesTax accessible within the trigger?

A. OpportunityLineItemTngger.SalesTax
B. SalesTax
C. PaymentTax.SalesTax
D. PayTax.SalesTax

Answer: C

NEW QUESTION # 46
Refer to the code snippet below:

When a Lightning web component is rendered, a list of apportunities that match certain criteria shopuld be retrievved from the database and displayed to the end user.

Choose 3 answer

A. The method must specify the (continuation-true) attribute
B. The method must specify the (cacheable-trun) attribute
C. The method must be annotaled with true Invocablemethod annolation
D. The method cannot mutate the result set retrieved from the database.
E. The method must be annotated with the AureEnabled annolation

Answer: B,D,E

NEW QUESTION # 47
A developer is debugging the following code to determinate why Accounts are not being created Account a = new Account(Name = 'A'); Database.insert(a, false); How should the code be altered to help debug the issue?

A. Set the second insert method parameter to TRUE
B. Add a System.debug() statement before the insert method
C. Collect the insert method return value a Saveresult record
D. Add a try/catch around the insert method

Answer: C

NEW QUESTION # 48
A developer is asked to create a Visualforce page for Opportunities that allows users to save or merge the current record.
Which approach should the developer to meet this requirement?

A. A custom controller extension
B. Standard controller methods
C. A custom controller
D. Visualforce page JavaScript

Answer: C

NEW QUESTION # 49
......

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Test Salesforce DEX-450 Dumps Free, Latest DEX-450 Exam Forum

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Salesforce Programmatic Development using Apex and Visualforce in Lightning Experience Sample Questions (Q44-Q49):

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