Common Interview Questions and Answers
Practice the most frequently asked interview questions with expert answers, approach tips, and AI-powered feedback.
125.1K views•6mo ago
Design a User Login and Authentication Service
System Design
Asked at Apple
Easy
106.3K Users PracticedPractice with This Question
135.7K views•6mo ago
Design a Simple ETL Pipeline
System Design
Asked at Netflix
Medium
115.4K Users PracticedPractice with This Question
23.6K views•6mo ago
Design a Distributed Counter Service
System Design
Asked at Google
Medium
20K Users PracticedPractice with This Question
80.5K views•6mo ago
Design a Push Notification Delivery System
System Design
Asked at Uber
Medium
68.4K Users PracticedPractice with This Question
51.5K views•6mo ago
Design an Online Bookstore/E-commerce Catalog
System Design
Asked at Amazon
Medium
43.8K Users PracticedPractice with This Question
125.8K views•6mo ago
Design a Spam Filter for Email/Messaging
System Design
Asked at Microsoft
Hard
107K Users PracticedPractice with This Question
64.8K views•6mo ago
Discuss Database Sharding Strategies
System Design
Asked at Meta
Medium
55K Users PracticedPractice with This Question
56.2K views•6mo ago
Design a Video Recommendation Engine (Short Form)
System Design
Asked at Google
Hard
47.8K Users PracticedPractice with This Question
66.5K views•6mo ago
Design a Distributed IDempotency Service
System Design
Asked at Stripe
Medium
56.6K Users PracticedPractice with This Question
143.7K views•6mo ago
Design a System for Monitoring API Latency
System Design
Asked at Salesforce
Medium
122.1K Users PracticedPractice with This Question