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Node.js
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Interview Prep
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Node.js
Node.js internals, event loop, streams, modules, databases, backend patterns, and scalability.
12 questions
3 sections
12 questions
0 reviewed
Node.js, Databases & Backend
(8)
Web Storage & Architecture
(2)
Node.js Follow-up Questions
(2)
Node.js, Databases & Backend
0/8
Q227
What is the difference between `process.nextTick`, `setImmediate`, and `setTimeout`?
Q228
How is the event loop in Node.js different from the browser?
Q229
What happens if you call `require()` multiple times for the same module?
Q230
What is the difference between the `cluster` module and `worker threads`?
Q231
How would you secure a JWT token in a Next.js/Node.js application?
Q232
How do you prevent duplicate payments (idempotency)?
Q233
How do you avoid race conditions on concurrent database updates?
Q234
How would you optimize a slow query in MongoDB?
Web Storage & Architecture
0/2
Q235
What is the difference between Local Storage, Session Storage, and Cookies?
Q236
Which storage method is most secure for tokens?
Node.js Follow-up Questions
0/2
Q270
What happens if you forget `.catch()` on a Promise in Node.js? What is `unhandledRejection`?
Q271
How do you delete or clear the `require` cache to reload a module?
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