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

Node.js Interview Questions

Questions Answers Views Company eMail

What is middleware in node.js?

564

What are the advantages of template engines?

483

What are the pros and cons of Node.js?

539

How to create TCP Server and TCP Client in node.js?

563

What are Events and Event Emitters in node.js?

563

What is the command that is used in node.js to import external libraries?

541

Why to use Express?

474

How to debug the Node.js code using IDE debuggers?

494

What are the Challenges with Node.js ?

469

What is File System module in Node.js?

510

How node.js overcomes the problem of blocking of i/o operations?

501

Explain the steps how “control flow” controls the functions calls?

1 1474

What are the useful commands of repl terminal?

479

What are the various options to download the version of a node module?

458

Explain node.js architecture?

484

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Un-Answered Questions { Node.js }

Is nodejs scalable?

521

Why is js single threaded?

529

What is the difference of using var and not using var in repl while dealing with variables?

517

Explain the reason as to why express ‘app’ and ‘server’ must be kept separate.

470

Why do we need promises in node js?

483

Mention the framework most commonly used in node.js?

549

Explain v8 engine?

441

What is a callback?

513

Is node.js on multi-core machines?

492

How will you open a file using node?

568

What are the features of node.js?

513

How do nodes work in a network?

545

What is package.json file in node project?

506

How Grunt and Gulp deal with Task Automation?

521

How to create a simple chat app using socket.io in node.js?

536

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