Free Practice Linux Foundation JSNSD Exam Questions 2025

Stay ahead with 100% Free OpenJS Node.js Services Developer JSNSD Dumps Practice Questions

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Total 320 Questions | Updated On: Apr 09, 2025

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Question 1

Which middleware is commonly used for parsing JSON in Express.js?

A : multer

B : body-parser

C : cookie-parser

D : helmet

Answer: B

Question 2

What format is most commonly used for structured error responses in REST APIs?

A : JSON

B : XML

C : YAML

D : Plain Text

Answer: A

Question 3

What is validator.js commonly used for in web applications?

A : Database migrations

B : Input validation

C : File uploads

D : Authentication

Answer: B

Question 4

What is the difference between Stored XSS and DOM-based XSS?

A : Stored XSS works on the server, while DOM-based XSS works on the client-side DOM

B : Stored XSS manipulates the DOM, while DOM-based XSS is stored in the database

C : Stored XSS and DOM-based XSS are the same

D : DOM-based XSS involves SQL queries

Answer: A

Question 5

Which event is triggered when the server starts listening?

A : connect

B : listening

C : ready

D : start

Answer: B

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Total 320 Questions | Updated On: Apr 09, 2025

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