Choose tools for scalable distributed systems

Company: TikTok

Role: Software Engineer

Category: System Design

Difficulty: medium

Interview Round: Technical Screen

Quick Answer: This question evaluates proficiency in designing scalable distributed systems, testing requirement analysis (latency, throughput, durability, consistency, availability, cost, query patterns) and tool selection across caching, databases, queues, stream processing, concurrency control, sharding, and observability.