Common Interview Questions and Answers
Practice the most frequently asked interview questions with expert answers, approach tips, and AI-powered feedback.
77.8K views•5mo ago
Design an API Gateway
System Design
Asked at Salesforce
Easy
66.1K Users PracticedPractice with This Question
111.5K views•5mo ago
Design a Distributed Unique ID Generator (Snowflake)
System Design
Asked at Google
Medium
94.8K Users PracticedPractice with This Question
43.4K views•5mo ago
Design a Recommendation System (Netflix)
System Design
Asked at Netflix
Hard
36.9K Users PracticedPractice with This Question
122.7K views•5mo ago
Design an Online Polling Service
System Design
Asked at Meta
Medium
104.3K Users PracticedPractice with This Question
73.2K views•5mo ago
Design a Pastebin Service
System Design
Asked at Uber
Easy
62.2K Users PracticedPractice with This Question
107.6K views•5mo ago
Design a Distributed File System (HDFS/S3)
System Design
Asked at Amazon
Hard
91.5K Users PracticedPractice with This Question
38.3K views•5mo ago
Design a System to Detect Plagiarism
System Design
Asked at Google
Hard
32.6K Users PracticedPractice with This Question
108.6K views•5mo ago
Design a Multi-Region Cloud Deployment
System Design
Asked at Microsoft
Medium
92.3K Users PracticedPractice with This Question
148.5K views•5mo ago
Design a System for Monitoring Service Health
System Design
Asked at Salesforce
Medium
126.2K Users PracticedPractice with This Question
135.5K views•5mo ago
Design an API Caching Layer
System Design
Asked at Apple
Medium
115.1K Users PracticedPractice with This Question