System Design Interview Cheat Sheet Pdf High Quality 【EXTENDED – 2026】

Draw a block diagram with 5-6 core components (e.g., LB, API Gateway, DB).

(draw boxes)

If you are writing or filming, the visual language is distinct. Western minimalism is "clean"; Indian maximalism is "sacred." system design interview cheat sheet pdf

A visual guide focusing on high availability, scalability, and common solutions like hot-warm redundancy and leaderless clusters. Detailed summaries can be found on ByteByteGo's guides . Draw a block diagram with 5-6 core components (e

A lifestyle channel might avoid caste entirely, but modern, authentic content cannot. Discussing how caste influences food habits (who cooks), living arrangements (colony segregation), and marriage rituals is essential for real journalism, but delicate for lifestyle fluff. Detailed summaries can be found on ByteByteGo's guides

| Component | Key Technique | Example | |-----------------|------------------------------------------|----------------------------------| | Database writes | Sharding (consistent hashing) | User ID → shard | | Database reads | Read replicas + cache (Redis/Memcached) | Leader‑follower replication | | Image/file store | CDN + object store (S3) | CloudFront + S3 | | Asynchronous tasks| Message queue (Kafka, SQS) | Video processing, email | | Search | Reverse index + Elasticsearch | Search bar, logs |