MediumTechnical
1
178
Explain event loop in Node.js
How does the event loop work in Node.js? Explain the different phases and how async operations are handled.
Amazon
Backend Engineer
Backend Interview Questions
Backend development questions on server-side programming, APIs, databases, authentication, and microservices architecture.
5
Questions in database
Questions (5)
MediumTechnical
0
145
Implement Python decorator for caching
Write a Python decorator that caches function results with configurable TTL and max size. Handle edge cases.
Microsoft
Software Engineer
EasyPhone Screen
0
198
What is the difference between SQL and NoSQL databases?
Compare SQL and NoSQL databases. When would you choose one over the other? Give examples of each type.
Apple
Backend Engineer
EasyPhone Screen
1
245
Explain REST vs GraphQL
Compare REST and GraphQL APIs. What are the pros and cons of each approach? When would you choose one over the other?
Amazon
Full Stack Engineer
MediumTechnical
0
167
Explain Python GIL and its implications
What is the Global Interpreter Lock in Python? How does it affect multi-threaded programs and what are the workarounds?
Google
Software Engineer