The answer
Many candidates focus only on frameworks and projects while ignoring Node.js internals, scalability concepts, and backend architecture.
What Node.js Backend Questions Are Asked in Interviews?
Why do many candidates struggle in Node.js interviews?
More FAQs in What Node.js Backend Questions Are Asked in Interviews?
Common topics include the Event Loop, async programming, Promises, Streams, Buffers, APIs, authentication, databases, caching, scalability, and system design.
Yes. The Event Loop is one of the most frequently asked Node.js interview topics because it is fundamental to understanding how Node.js handles asynchronous operations.
Yes. Product companies frequently ask Streams and Buffers because they are important for performance optimization, file processing, and memory efficiency.
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