100% Free Salesforce DEX-450 Practice Test Questions

Question 1

A developer is creating an app that contains multiple Lightning web components.

One of the child components is used for navigation purposes. When a user click a button called.. component, the parent component must be alerted so it can navigate to the next page.

How should this be accomplished?

A : Fire a notification.

B : Update a property on the parent.

C : Call a method in the Apex controller.

D : Create a custom event.

Answer: D

Question 2

A developer completed modifications feature that is comprised of two elements:* Apex trigger* Trigger handler Apex classWhat are two factors that the developer must take into account to properly deploy them to the productionenvironment?Choose 2 answers

A : Apex classes must have at least 75% code coverage org-wide.

B : All methods in the test classes must use @istest.

C : At least one line of code must be executed for the Apex trigger.

D : Test methods must be declared with the testMethod keyword.

Answer: A,C

Question 3

Managers at Universal Containers want to ensure that only decommissioned containers are able to be deletedin the system. To meet the business requirement a Salesforce developer adds "Decommissioned" as a picklistvalue for the Status _c custom field within the Container _c object.Which two approaches could a developer use to enforce only Container records with a status of"Decommissioned" can be deleted?Choose 2 answers

A : Before record-triggered flaw

B : Apex trigger

C : After record-triggered flow

D : Validation rule

Answer: B,D

Question 4

What can be easily developed using the Lightning Component framework?

A : Customized JavaScript buttons

B : Salesforce Classic user Interface pages

C : Lightning Pages

D : Salesforce integrations

Answer: C

Question 5