Node.js Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Node.js Interview Questions

Questions Answers Views Company eMail

Is node.js is free?

536

What is an error-first callback?

634

Explain the role of repl in node.js?

518

What is node.js? Where can you use it?

579

Does node.js support multi-core platforms? And is it capable of utilizing all the cores?

499

Mention the command to stop repl in node.js?

573

What are the functionalities of npm in node.js?

541

What are globals in node.js?

500

What are exit codes in node.js? List some exit codes.

598

What is a child_process module in node.js?

544

What are the differences between “readuintbe” and “writeintbe” in node.js?

556

Explain chaining in node.js?

521

What is the latest version of node.js available?

556

Write a program to print 0 to n element in pyramid shape?

498

For what require() is used in node js?

501

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Un-Answered Questions { Node.js }

How Many Types Of Streams Are Present In Node?

528

How to parse json using node.js?

556

What is npm? What is the main functionality of npm?

486

How to decode buffers?

573

Explain node.js web application architecture?

575

What do you understand by middleware?

524

List out the layers involved in web app architechure?

498

How to uninstall the dependency using npm?

546

What is blocking and nonblocking API in Node.js and how does it affect the architecture of your applications?

498

Why to use MongoDB?

507

What is the use of QueryString in Node.js?

519

What is repl terminal?

569

Explain – 'console.log([data][, …])' statement in node.js?

485

What are the streams in node.js?

562

List some tools and ides that are used in node.js

508

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