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Deep, structured guides on the topics interviews actually probe. Each one ends with interview questions and a hands-on lab.
5 guides
Rate Limiting
Master algorithm selection, Redis distributed implementations, and API gateway protection patterns.
Caching
Cache invalidation strategies, Cache-Aside, Write-Through, Write-Behind, and eviction algorithms.
Load Balancing
Layer 4 vs Layer 7 load balancing, health checks, consistent hashing, and high availability.
Distributed Systems
CAP theorem, PACELC, consensus algorithms (Raft), leader election, and distributed transactions.
Messaging
Decoupling microservices, pub/sub, dead-letter queues, and event replay.