[Client] ---> [Load Balancer] ---> [API Gateway] ---> [Cache Layer] ---> [Database]
Data is written to the cache and the database simultaneously. High consistency, slower writes.
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Conclude by summarizing your design and proactively identifying remaining limitations.
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Are there you know you will be tested on? (e.g., chat systems, video streaming, search engines) Share public link If you have ever ventured into the treacherous
Interviewers intentionally give vague prompts like "Design YouTube." They want to see if you can narrow down the scope.
Sketch the basic connections between the Client, Load Balancer, Web Servers, and Database. 3. Design Deep Dive
To succeed, you must demonstrate comfort with these fundamental "building blocks" of modern architecture: Scalability: Vertical vs. Horizontal scaling. Load Balancing: Distributing traffic across multiple servers. Databases:
. By the time he capped his marker, the board wasn't just covered in lines; it was a masterpiece of scalability.
