Salesforce DEX-450 Exam Questions Instant Access

Question 1

Which code statement includes an Apex method named updateAccounts in the class AccountController for use in a Lightning web component?

Aimport updateAccounts from 'AccountControlles';

Bimport updateAccounts from 'Salesforce/apex/AccountController:';

Cimport updateAccounts from 'Account@ontroller.updateAccounts';

Dimport updateAccounts from '@salesforce/apex/AccountController.updateAccounts';

Answer : B

Question 2

What are two characteristics related to formulas?

Choose 2 answers

AFormulas are calculated at runtime and are not stored in the database.

BFormulas can reference themselves.

CFormulas can reference values in related objects.

DFields that are used in a formula field can be deleted or edited without editing the formula.

Answer : A, C

Question 3

A developer must provide custom user interfaces when users edit a Contact in either Salesforce Classic or Lightning Experience.

What should the developer use to override the Contact's Edit button and provide this functionality?

AA Lightning component in Salesforce Classic and a Lightning component in Lightning Experience

BA Lightning page in Salesforce Classic and a Visualforce page in Lightning Experience

CA Visualforce page in Salesforce Classic and a Lightning page in Lightning Experience

DA Visualforce page in Salesforce Classic and a Lightning component in Lightning Experience

Answer : D

Question 4

A developer must create a Lightning component that allows users to input Contact record information to create a Contact record, including a Salary c custom field.

What should the developer use, along with a lightning-record-edit-form, so that Salary__c field functions as a currency input and is only viewable and editable by users that have the correct field level permissions on Salary _c?

AOption A

BOption B

COption C

DOption D

Answer : C

Question 5

As part of new feature development, a developer is asked to build a responsive application capable of responding to touch events, that will be executed on stateful clients.

Which two technologies are built on a framework that fully supports the business requirement? Choose 2 answers

ALightning Web Components

BVisualforce Components

CVisualforce Pages

DAura Components

Answer : A, D

Question 6

While working in a sandbox, an Apex test fails when run in the Test Runner. However, executing the Apex logic in the Execute Anonymous window succeeds with no exceptions or errors.

Why did the method fail in the sandbox test framework but succeed in the Developer Console?

AThe test method does not use system. runAs to execute as a specific user.

BThe test method is calling an @future method.

CThe test method relies on existing data in the sandbox.

DThe test method has a syntax error in the code.

Answer : C

Question 7

A developer is migrating a Visualforce page into a Lightning web component.

The Visualforce page shows information about a single record. The developer decides to use Lightning Data Service to access record data.

Which security consideration should the developer be aware of?

ALightning Data Service ignores field-level security.

BThe with sharing keyword must be used to enforce sharing rules.

CLightning Data Service handles sharing rules and field-level security.

DThe isAccessible () method must be used for field-level access checks.

Answer : C

Salesforce Build Applications Programmatically on the Salesforce Platform DEX-450 Exam Questions