Free Salesforce DEX602 Exam Questions

Become Salesforce Certified with updated DEX602 exam questions and correct answers

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Total 217 Questions | Updated On: Jul 22, 2025

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Question 1

Refer to the following array:Let arr = [1, 2, 3, 4, 5];Which three options result in x evaluating as [1, 2]?Choose 3 answer

A : let x = arr. slice (2);

B : let x = arr. slice (0, 2);

C : let x arr.filter((a) => (return a

D : let x = arr.filter ((a) => 2 }) ;

E : let x =arr.splice(0, 2);

Answer: A,B,C

Question 2

Which javascript methods can be used to serialize an object into a string and deserializea JSON string into an object, respectively?

A : JSON.stringify and JSON.parse

B : JSON.serialize and JSON.deserialize

C : JSON.encode and JSON.decode

D : JSON.parse and JSON.deserialize

Answer: A

Question 3

Which three actions can be using the JavaScript browser console?Choose 3 answers:

A : View and change DOM the page.

B : Display a report showing the performance of a page.

C : Run code that is not related to page.

D : view , change, and debug the JavaScript code of the page.

E : View and change security cookies.

Answer: A,C,D

Question 4

A developer creates a class that represents a blog post based on the requirement that aPost should have a body author and view count.The Code shown Below:Class Post {// Insert code hereThis.body =bodyThis.author = author;this.viewCount = viewCount;}}Which statement should be inserted in the placeholder on line 02 to allow for a variable to be setto a new instanceof a Post with the three attributes correctly populated?

A : super (body, author, viewCount) {

B : Function Post (body, author, viewCount) {

C : constructor (body, author, viewCount) {

D : constructor() {

Answer: C

Question 5

Given two expressions var1 and var2. What are two valid ways to return the logical ANDof the two expressions and ensure it is data type Boolean ?Choose 2 answers:

A : Boolean(var1 && var2)

B : var1 && var2

C : var1.toBoolean() && var2toBoolean()

D : Boolean(var1) && Boolean(var2)

Answer: A,D

Page: 1 / 44

Total 217 Questions | Updated On: Jul 22, 2025

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