Apple System Design Interview Questions
Practice the exact questions companies are asking right now.

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Design ad click aggregator and file sync service
You have two system design prompts. 1) Design an ads click aggregation system Design a service that ingests ad click events at very high QPS and suppo...
Design a multimodal RAG assistant
Prompt Design a Retrieval-Augmented Generation (RAG) system that can answer user questions using an internal knowledge base containing multiple modali...
Design video platform and catalog system
System Design: Two Independent Systems You are asked to design two large-scale systems. For each system, provide: - Scope and key requirements - Exter...
Implement a robust socket message reader
Implement Message Framing Readers for TCP Sockets Context You are given a TCP socket. Each call to recv(k) may return any number of bytes up to k; in ...
Migrate a monolithic wallet to microservices
System Design: Migrating a Monolithic Digital Wallet (Apple Cash–like) to Microservices Context You operate a high-scale consumer digital wallet and p...
Design and scale a Yelp-like platform
System Design: Yelp-like Local-Business Reviews Platform + URL Shortener You are designing two systems: 1) A Yelp-like local-business reviews platform...
Implement a robust REST API method
Design and implement a REST API method to create a resource with idempotency Context You are building a create endpoint for a commerce-like service. T...