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Load balancers distribute incoming network traffic across multiple servers. This prevents any single server from becoming a bottleneck. Common routing algorithms include Round Robin, Least Connections, and Consistent Hashing. Caching Strategies While many look for the to read, the

The book is structured into two main parts: a theoretical introduction to system fundamentals and a series of practical, real-world case studies. search results for the first set show some relevant pages

Caching is the most effective way to improve application performance and reduce database load. Be prepared to discuss caching tiers (Client, CDN, API Gateway, Application, Database) and eviction policies like LRU (Least Recently Used) and LFU (Least Frequently Used). Understand the trade-offs of Cache-Aside, Write-Through, and Write-Behind strategies. Database Selection (SQL vs. NoSQL)

Content Delivery Networks (CDNs) for edge caching, asynchronous video encoding pipelines, and adaptive bitrate streaming (HLS/DASH). Communication: The Secret Weapon

: It provides a step-by-step roadmap for handling any design question, emphasizing requirements clarification, high-level architecture, and detailed component deep dives.