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Node.js interview questions on event loop, streams, clustering, and performance.
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Top Node.js Interview Questions
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1
Explain the Node.js event loop
Hint: Phases, callbacks, I/O
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2
What are streams?
Hint: Reading/writing data in chunks
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3
How does clustering work?
Hint: Utilizing multiple CPU cores
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4
What is the difference between process and child_process?
Hint: Main process vs spawned processes
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5
Explain the module system
Hint: CommonJS vs ES Modules
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6
How to handle errors in Node.js?
Hint: Try/catch, error events, domains
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