Comprehensive backend interview questions covering APIs, databases, microservices, distributed systems, and performance optimization. Overview Backend development encompasses: API Design: REST, GraphQL, gRPC Databases: SQL, NoSQL, transactions, optimization Microservices: Architecture, communication, scaling …

Easy-level backend interview questions covering HTTP, REST APIs, databases, and server fundamentals. Q1: What is REST and what are its principles? Answer: REST Principles 1. Stateless: Each request contains all information needed 2. Client-Server: Separation of concerns 3. Cacheable: Responses can be cached 4. Uniform …

Hard-level backend interview questions covering distributed systems, advanced architecture, and complex system design. Q1: Design a distributed caching system (like Redis Cluster). Answer: Consistent Hashing Implementation 1package main 2 3import ( 4 "fmt" 5 "hash/fnv" 6 "sort" 7 "sync" …

Medium-level backend interview questions covering microservices, advanced databases, message queues, and performance optimization. Q1: Explain microservices architecture and its trade-offs. Answer: Monolith vs Microservices Advantages Independent deployment: Deploy services separately Technology flexibility: Different …