System design questions are often the most difficult of all technical interview questions. This book makes them easier to tackle. It is Volume 1 of the ‘System Design Interview – An Insider’s Guide’ series.
This volume provides a reliable strategy and knowledge base for approaching a broad range of system design questions that you may encounter. It will help you feel confident during this important interview. This book provides a step-by-step framework for how to tackle a system design question. It also includes many real-world examples to illustrate a systematic approach, with detailed and well-explained steps you can follow.
– An insider’s take on what interviewers really look for and why.
– A 4-step framework for solving any system design interview question.
– 15 real system design interview questions with detailed solutions.
– 188 diagrams to visually explain how different systems work.
Table Of Contents
Chapter 1: Scale From Zero To Millions Of Users
Chapter 2: Back-of-the-envelope Estimation
Chapter 3: A Framework For System Design Interviews
Chapter 4: Design A Rate Limiter
Chapter 5: Design Consistent Hashing
Chapter 6: Design A Key-value Store
Chapter 7: Design A Unique Id Generator In Distributed Systems
Chapter 8: Design A Url Shortener
Chapter 9: Design A Web Crawler
Chapter 10: Design A Notification System
Chapter 11: Design A News Feed System
Chapter 12: Design A Chat System
Chapter 13: Design A Search Autocomplete System
Chapter 14: Design Youtube
Chapter 15: Design Google Drive
Chapter 16: The Learning Continues
System design interviews assess a candidate’s ability to design scalable and efficient software systems. While the content and format of system design interviews can vary, here are some important learnings and insights often covered in these interviews:
- Scalability: Candidates should demonstrate an understanding of designing systems that can handle increasing loads and scale horizontally or vertically as needed. This involves discussing techniques like load balancing, caching, and sharding.
- Reliability: Candidates should consider fault tolerance and system resilience. This may involve discussing concepts like redundancy, replication, monitoring, and failure recovery mechanisms.
- Data Storage and Processing: Candidates should discuss the selection and design of appropriate data storage and processing systems based on the requirements of the application. This can involve databases, distributed file systems, message queues, and stream processing frameworks.
- Distributed Systems: Candidates should understand the challenges and principles behind designing distributed systems, including communication protocols, distributed consensus, and handling network partitions.
- Performance Optimization: Candidates should be able to identify and address potential performance bottlenecks in a system. This may involve discussing techniques like database indexing, query optimization, and efficient algorithms.
- API Design: Candidates should consider the design and architecture of APIs, focusing on clarity, consistency, and ease of use for clients.
- Trade-offs: Candidates should be able to analyze and discuss trade-offs between different design choices. This includes considering factors such as performance, scalability, reliability, development time, and cost.
- Communication and Problem Solving: Candidates should effectively communicate their thought process, ask clarifying questions, and break down complex problems into manageable components. The ability to think critically and solve problems collaboratively is crucial.
It’s important to note that the specific content and focus of system design interviews may vary depending on the company and the position for which you’re interviewing. It’s always a good idea to prepare by studying distributed systems concepts, scalability patterns, and real-world system design examples. Additionally, practicing by solving system design problems and participating in mock interviews can help refine your skills for these types of interviews.