intermediateCaching

What is cache eviction? Explain LRU, LFU, and FIFO policies.

Tests whether you know which eviction policy fits which access pattern, and why LRU is the common default.

Ready to design this system end to end?

Generate a complete, structured system design answer — requirements, capacity estimation, API design, architecture, database choice, scaling, caching, fault tolerance, security, trade-offs, and more, walked through the way a strong senior engineer would in a real interview.

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