Salesforce DEX-450 Exam Practice Test Instant Access

Question 1

A developer is creating a Lightning web component to show a list of sales records.

The Sales Representative user should be able to see the commission field on each record. The Sales Assistant user should be able to see all fields on the record except the commission field.

How should this be enforced so that the component works for both users without showing any errors?

AUse WITH SECURITY_ENFORCED In the SOQL that fetches the data for the component,

BUse Security.stripInaccessible Le to remove fields inaccessible to the current user.

CUse Lightning Locker Service to enforce sharing rules and field-level security.

DUse Lightning Data Service to get the collection of sales records.

Answer : B

Question 2

The orderHelper class is a utility class that contains business logic for processing orders. Consider the following code snippet:

A developer needs to create a constant named delivery_multiplier with a value of 4.15. The value of the constant should not change at any time in the code.

How should the developer declare the delivery multiplier constant to meet the business objectives?

Astatic decimal DELIVERY_MULTIPLIER = 4.15;

Bconstant decimal DELIVERY_MULTIPLIER = 4.15;

Cstatic final decimal DELIVERY_MULTIPLIER = 4.15;

Ddecimal DELIVERY_MULTIPLIER = 4.15;

Answer : C

Question 3

What should a developer do to check the code coverage of a class after running all tests?

AView the code coverage percentage for the class using the Overall Code Coverage panel in the Developer Console Tests tab.

BView the Class Test Percentage tab on the Apex Class list view in Salesforce Setup.

CSelect and run the class on the Apex Test Execution page in the Developer Console.

DView the Code Coverage column in the list view an the Apex Classes page.

Answer : A

Question 4

How many Accounts will be inserted by the following block of code?

A100

C150

D500

Answer : C

Question 5

When using Salesforce DX, what does a developer need to enable to create and manage scratch orgs?

ASandbox

BEnvironment Hub

CProduction

DDev Hub

Answer : D

Question 6

Universal Containers has a Visualforce page that displays a table of every Container__c being rented by a given Account. Recently this page is failing with a view state limit because some of the customers rent over 10,000 containers.

What should a developer change about the Visualforce page to help with the page load errors?

AImplement pagination with an OffsetController.

BImplement pagination with a StandardSetController.

CUse JavaScript remoting with SOQL Offset.

DUse lazy loading and a transient List variable.

Answer : B

Question 7

How can a developer check the test coverage of autolaunched Flows before deploying them in a change set?

AUse the ApextestResult class.

BUse the Flow Properties page.

CUse SOQL and the Tooling API.

DUse the Code Coverage Setup page,

Answer : C

Salesforce DEX-450 Build Applications Programmatically on the Salesforce Platform Exam Practice Test