Design a Content Delivery Network (CDN)
Complete CDN design walkthrough covering architecture, edge servers, caching policies, content propagation, cache invalidation, and serving content globally at scale.
System Design
Design a Distributed Key-Value Store
Complete key-value store design covering requirements, API design, consistent hashing, data partitioning, replication strategies, failure handling, and scaling.
Databases Introduction - System Design Fundamentals
Introduction to databases for system design covering data storage, retrieval, relational databases, NoSQL, and choosing the right database for your application.
Load Balancers Explained - Part 1
Complete guide to load balancers covering algorithms (round-robin, least connections), global vs local load balancing, stateful vs stateless approaches, and scaling strategies.
System Maintainability - Building Evolvable Systems
Complete guide to system maintainability covering code quality, documentation, modularity, observability, and designing systems that evolve gracefully over time.
Abstractions in System Design - Building Modular Systems
Understanding abstractions in system design covering abstraction layers, APIs, interfaces, and how they help manage complexity in distributed systems.
What is a System Design Interview
Complete guide to understanding system design interviews, what interviewers expect, and how to prepare effectively for distributed systems and scalability questions.
Databases - NoSQL Fundamentals
Complete guide to NoSQL databases including document stores, key-value stores, column-family databases, and graph databases for unstructured data.
Load Balancers Layer 4 vs Layer 7 - Deep Dive
Complete guide to load balancer types covering Layer 4 (transport layer), Layer 7 (application layer), OSI model, and implementation strategies.
Fault Tolerance - Designing Resilient Systems
Complete guide to fault tolerance covering failure modes, redundancy strategies, circuit breakers, graceful degradation, and designing systems that survive failures.