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What is Node.js?

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A runtime environment for executing JavaScript on the server-side

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Which engine is used by Node.js to execute JavaScript?

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V8

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Which of the following is true about Node.js's event loop? It runs synchronously., It is a part of the main thread, handling I/O operations., It is used for multi-threaded processing., It is only for CPU-bound tasks.

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It is a part of the main thread, handling I/O operations.

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Which module is used to work with file systems in Node.js?

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fs

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What does NPM stand for in the context of Node.js?

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Node Package Manager

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What is the role of the require() function in Node.js?

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To import a module

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Which of the following methods is used to create a server in Node.js? http.createServer(), fs.createServer(), server.create(), server.run()

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http.createServer()

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Which of the following is a core feature of Node.js that allows it to handle many requests simultaneously? Multi-threading, Non-blocking I/O, Synchronous processing, Single-threaded execution

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Non-blocking I/O

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What is a callback in Node.js?

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A function that is passed into another function and is executed later.

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What does the process object in Node.js provide?

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Information and control over the current Node.js process