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

Node.js Interview Questions

Questions Answers Views Company eMail

How to config properties in express js?

663

What are commonjs modules?

559

In which language node js is written?

568

How node js read the content of a file?

494

What do you understand by middleware?

529

What do you understand by middleware? How can you use middleware in node js?

493

How to generate unique uuids/ guid in node js?

534

What is difference between put and patch?

541

How to authenticate users in express js?

476

Explain ecmascript?

539

Why zlib is used in node js?

598

Write the steps for setting up an express js application.

565

Explain the difference between readfile and createreadstream in node js?

642

Who is the author of node js?

555

Which template engine is supported by express js?

511

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Un-Answered Questions { Node.js }

What is the request object in nodejs?

552

Does facebook use node.js?

581

List types of streams available in node js?

494

Is there any system configration needed to install node js?

589

Difference between cluster and child_process modules?

1203

For what require() is used in node js?

506

What is the purpose of node.js module.exports and how do you use it?

538

How to decide when to use node.js?

539

How we can write a file in node js?

511

What are WebSockets in node.js?

557

How do you get information of a file using node.js?

624

What are commonjs modules?

559

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

547

What is V8 JavaScript Engine?

586

What is an error-first callback in node.js?

536

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