Interview Ready Questions

- Chirag

[ ] How does the event loop operate under the hood in JavaScript or Node.js, and what role does the task queue play? https://youtu.be/eiC58R16hb8?si=3duYWVouyYblrcVy

[ ] How do DNS (Domain Name System) lookups, resolution, and caching work internally?
[ ] How does HTTP caching function under the hood, and how do you purge caches to maintain performance?
[ ] How does SSL (Secure Sockets Layer) or TLS work under the hood to secure communications?

[ ] How do WebSockets work under the hood, including the handshake process?
[ ] How do API keys work, and what are best practices for managing and securing them?
[ ] How does CORS (Cross-Origin Resource Sharing) work under the hood, and what problems does it solve?
[ ] How do you compare different architectural approaches or technologies effectively?
[ ] go through 100xDocs
[ ] how google’s v8 engine works,
[ ] mongo vs mongoose library, mongoose → ODM
[ ] connection pooling, prisma’s limitation
[ ] How do you approach system design interviews, and what common patterns and best practices should you know?
[ ] How do indexing, sharding, and partitioning work in databases, and why are they important for performance and scalability?
[ ] What is the difference between response time and latency, and how do you measure and improve them?