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: Jan 27, 2025

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Question 1

developer creates a new web server that uses Node.js. It imports a server library that

uses events and callbacks for handling server functionality.

The server library is imported with require and is made available to the code by a

variable named server. The developer wants to log any issues that the server has while booting

up.

Given the code and the information the developer has, which code logs an error at boost

with an event?

A : Server.catch ((server) => {console.log('ERROR', error);});

B : Server.error ((server) => {console.log('ERROR', error);});

C : Server.on ('error', (error) => {console.log('ERROR', error);});

D : Try{server.start();} catch(error) {console.log('ERROR', error);}

Answer: C

Question 2

Teams at Universal Containers (UC) work on multiple JavaScript projects at the same time.

UC is thinking about reusability and how each team can benefit from the work of others.

Going open-source or public is not an option at this time.

Which option is available to UC with npm?

A : Private packages can be scored, and scopes can be associated to a privateregistries.

B : Private registries are not supported by npm, but packages can be installed via URL.

C : Private packages are not supported, but they can use another package manager likeyarn.

D : Private registries are not supported by npm, but packages can be installed via git.

Answer: A

Question 3

Given the code below:

What is logged to the console'

A : 1 2 3 4 5

B : 1 2 5 3 4

C : 2 5 1 3 4

D : 2 5 3 4 1

Answer: D

Question 4

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 5

Refer to the code below:

Let car1 = new Promise((_ , reject) =>

setTimeout(reject, 2000, ''car 1 crashed in'' =>

Let car2 =new Promise(resolve => setTimeout(resolve, 1500, ''car 2 completed'')

Let car3 =new Promise(resolve => setTimeout(resolve, 3000, ''car 3 completed'')

Promise.race(( car1, car2, car3))

.then (value => (

Let result = '$(value) the race.';)}

.catch(arr => {

console.log(''Race is cancelled.'', err);

});

What is the value of result when Promise.race executes?

A : Car 3 completes the race

B : Car 2 completed the race.

C : Car 1 crashed in the race.

D : Race is cancelled.

Answer: B

Page: 1 / 44

Total 217 Questions | Updated On: Jan 27, 2025

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