High-Performance Caching Strategies

Explain the role of a distributed cache in reducing database load and improving latency.

Implement the cache-aside caching pattern to manage cache and database reads.

Compare and contrast read-through, write-through, and write-back caching patterns and their trade-offs.

Compare memory eviction policies (LRU, LFU, FIFO) for different data access patterns.

Design a caching layer using consistent hashing to minimize cache invalidation when nodes are added or removed.