Free Practice Salesforce CRT-600 Exam Questions 2025

Stay ahead with 100% Free Certification Preparation for Salesforce JavaScript Developer I (WI25) CRT-600 Dumps Practice Questions

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Total 217 Questions | Updated On: Jun 05, 2025

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Question 1

A developer writers the code below to calculate the factorial of a given number.

Function factorial(number) {

Return number + factorial(number -1);

}

factorial(3);

What is the result of executing line 04?

A : 0

B : 6

C : -Infinity

D : RuntimeError

Answer: D

Question 2

Which two console logs outputs NaN ?

Choose 2 answers

A : console.log(10/ Number('5'));

B : console.log(parseInt('two'));

C : console.log(10/ ''five);

D : console.log(10/0);

Answer: B,C

Question 3

Refer to the code below:

console.log(''start);

Promise.resolve('Success') .then(function(value){

console.log('Success');

});

console.log('End');

What is the output after the code executes successfully?

A : EndStartSuccess

B : StartSuccessEnd

C : StartEndSuccess

D : SuccessStartEnd

Answer: C

Question 4

A developer is debugging a web server that uses Node.js The server hits a runtimeerror

every third request to an important endpoint on the web server.

The developer added a break point to the start script, that is at index.js at he root of the

server's source code. The developer wants to make use of chrome DevTools to debug.

Which command can be run to access DevTools and make sure the breakdown is hit ?

A : node -i index.js

B : Node --inspect-brk index.js

C : Node inspect index.js

D : Node --inspect index.js

Answer: D

Question 5

A test has a dependency on database. query. During the test, the dependency is replaced with an object called database with the method,

Calculator query, that returns an array. The developer does not need to verify how many times the method has been called.

Which two test approaches describe the requirement?

Choose 2 answers

A : White box

B : Stubbing

C : Black box

D : Substitution

Answer: A,D

Page: 1 / 44

Total 217 Questions | Updated On: Jun 05, 2025

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