Computer Network Learning Roadmap (Job‑Search Edition)
This article presents a comprehensive learning roadmap for computer networking, offering curated books, video courses, hands‑on practice tools, and study plans tailored for beginners, non‑CS majors, and experienced developers seeking to strengthen their networking fundamentals for job interviews.
Last Saturday I organized a winter study session that attracted over 300 participants, many of whom asked for guidance on learning operating systems, computer networks, or data structures and algorithms.
To address these needs, I will share a structured learning plan, route, and outline for computer fundamentals, collaborating with two graduate students—Ayu, a backend engineer at Tencent PCG, and Xiao Wu, a full‑stack engineer at Alibaba.
We have created a GitHub repository awesome-cs-community (https://github.com/awesome-cs-community/developer-roadmap-zh-CN) to host our collective resources on computer learning, major‑tech‑company development, and high‑quality materials.
Our goal is to synthesize each of our experiences into a concise, high‑value learning route and outline for beginners.
00x01 — Don’t Discourage Yourself
Many beginners feel overwhelmed by classic textbooks like Xie Xiren’s Computer Networks or the massive TCP/IP Illustrated series, which are dense and intimidating.
We recommend starting with two approachable Japanese books, Illustrated HTTP and Illustrated TCP/IP , which use many diagrams and are friendly to newcomers.
If you have no background in computer science, begin with How Networks Work , which explains the end‑to‑end request process in browsers.
00x02 — Recommended Video Courses
After reading the introductory books, you can watch video courses. For beginners, we suggest starting with videos; for those with some foundation, proceed to the books.
1. Professor Han Ligang’s Computer Networks
Highly engaging and humorous lectures; available at https://www.bilibili.com/video/BV1Q
2. Stanford CS144 – Computer Networks
Renowned course with excellent reviews; if time is limited, prioritize Han Ligang’s videos.
00x03 — Hands‑On Practice
Practical exercises are scarce, but packet capture is a valuable activity. Understanding the OSI layers and data flow helps grasp many concepts.
Popular tools include Wireshark and Fiddler; we recommend Wireshark for its cross‑platform support.
Key books: Wireshark Network Analysis – Easy and The Art of Wireshark Network Analysis . Choose one based on your career focus.
00x04 — Classic References
Timeless books include Computer Networks: A Top‑Down Approach and TCP/IP Illustrated, Volume 1: The Protocols . The top‑down book starts from the application layer, making it intuitive.
Focus on Chapter 3 (Transport Layer) to master TCP/UDP and congestion control. Use the TCP/IP book as a reference when specific questions arise.
Summary
Computer networking is not as difficult as it seems; follow a steady learning path, practice with tools like Wireshark, and leverage the recommended books and videos to build solid knowledge for interviews and real‑world work.
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