System Design Interview Questions
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System design play a crucial role in the hiring process for many technology companies, especially those involved in developing complex , robust , large-scale and highly reliable software systems.
Importance of System Design Interviews
In software engineering and technical roles, system design interviews assess a candidate's expertise in
- Architect Scalable Solutions : Designing scalable and efficient systems
- Problem Solving Skills
- Applying Design Patterns and Principles
- Ability to analyze requirements thoroughly
- Ensure Reliability and Performance
- Plan for Fault Tolerance
- Maintainability : Design should be easy to maintain and evolve over time.
- Communication Skills
System Design Interview Questions
- Design a Browser History Tracking System
- Design the data structure and operations for a call stack used in a programming language interpreter
- Design Netflix : Design a simplified version of Netflix focusing on the core features like user subscription, content recommendation, and streaming service
- Design a Web Crawler : Design a web crawler that can crawl the web efficiently, handle concurrency, and manage state
- Design TinyURL : Design a system to generate a tiny URL from a long URL and vice versa
- Design Twitter : Design a simplified version of Twitter, where users can post tweets, follow/unfollow other users, and see the recent tweets in their news feed
- Design Dropbox : Design a file storage service like Dropbox with considerations for scalability and reliability
- Social Media Feed : Design a scalable system like Facebook, Instagram etc feed, prioritizing real-time updates and user engagement
- Distributed Messaging System : Design a system like Kafka or RabbitMQ, ensuring reliable message delivery across distributed nodes
- Parking Lot System : Design a parking lot management system handling vehicle entry, exit, and space allocation efficiently
- Chat Application : Design a scalable and real-time chat application similar like WhatsApp supporting features like group chats, private messaging and guarantees message delivery.
- Content Delivery Network (CDN) : Design a distributed content delivery network (CDN) system that efficiently delivers web content worldwide. Consider caching strategies, optimal placement of edge servers, and effective content replication to enhance performance and user experience.
- Recommendation System : Design a scalable recommendation system similar like Netflix, Amazon Prime Videos etc, using user preferences, content details and machine learning techniques to provide personalized recommendations.
- Video Streaming Service : Design a video streaming platform like YouTube , Netflix , Amazon Prime Videos etc, focusing on delivering high-quality streaming, adaptive bitrate capabilities, optimizing content delivery, and robust user interaction functionalities.
- Ride-Hailing Service : Design a system like Uber where users can request rides and drivers can accept these requests, ensuring efficient matching and navigation, real-time tracking, payment processing, rating and feedback, safety features.
- Distributed Key-Value Store : Design a distributed key-value store like Redis , Memcached or Cassandra, focusing on high availability, fault tolerance, maintaining data consistency and efficiently managing data replication and storage across multiple servers.