Common Interview Questions and Answers
Practice the most frequently asked interview questions with expert answers, approach tips, and AI-powered feedback.
42.1K views•5mo ago
Design a Load Balancer
System Design
Asked at Microsoft
Medium
35.7K Users PracticedPractice with This Question
149K views•5mo ago
Design a Payment Processing System
System Design
Asked at Uber
Hard
126.6K Users PracticedPractice with This Question
77.6K views•5mo ago
Design the YouTube Video Streaming Service
System Design
Asked at Netflix
Hard
66K Users PracticedPractice with This Question
51.5K views•5mo ago
Design a Web Crawler
System Design
Asked at Google
Medium
43.8K Users PracticedPractice with This Question
134.8K views•5mo ago
Design a Notification Service (Push/SMS/Email)
System Design
Asked at Meta
Medium
114.6K Users PracticedPractice with This Question
109.5K views•5mo ago
Design a Ride-Hailing Service (Uber/Lyft)
System Design
Asked at Uber
Hard
93.1K Users PracticedPractice with This Question
122.5K views•5mo ago
Design an Image Hosting Service (Instagram/Flickr)
System Design
Asked at Meta
Medium
104.1K Users PracticedPractice with This Question
134.3K views•5mo ago
Design an Autocomplete/Type-Ahead Service
System Design
Asked at Amazon
Medium
114.2K Users PracticedPractice with This Question
23.8K views•5mo ago
Design a Distributed Job Scheduler (Cron Service)
System Design
Asked at Microsoft
Hard
20.2K Users PracticedPractice with This Question
85.9K views•5mo ago
Design a Stock Exchange Matching Engine
System Design
Asked at Stripe
Hard
73.1K Users PracticedPractice with This Question