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Catching up with non-majors - Networks, HTTP

If you are a developer who deals with HTTP or want to become a developer but did not major in computer science and are weak in networking, gain lifelong knowledge with this one course!

(4.8) 27 reviews

760 students

Network
tcpip
websockets

This course is prepared for Beginners.

What you will learn!

  • OSI 7 layers

  • TCP/IP model

  • HTTP/HTTPS

  • HTTP2, 3, WebSocket

  • Gateway, Proxy

  • DNS

Is there knowledge that only developers with a computer science background know?
Even non-majors can learn with this course 😎

If you've ever had these concerns, pay attention!

🫠

I want to learn the basics of networking, but the major books are too thick.

🤔

Even if I learn all the specialized knowledge, I don't know how to use it in practice.

🥲

Sometimes I feel embarrassed because I don't communicate well with the server side developers.

Is computer science knowledge only for those who major in it?

Anyone can learn it, even non-majors! ✨

OSI 7-layer, TCP/IP model, HTTP, WebSocket, DNS, proxy... These are concepts that you absolutely must know if you want to become a web/app/server developer. Computer science majors basically have this knowledge.

Non-majors who have not studied computer science often think that majors already know something great. However, if they study step by step, non-majors can acquire specialized knowledge just as much as computer science majors. I will teach you only the core knowledge necessary for practical work.

If you can't answer 'yes' to any of the three questions below, then join this course!

  • Do you know what process the data you send goes through before it reaches the other person's computer?
  • Can I analyze HTTP requests with the network tab without asking the backend developer?
  • Can you ask your backend developer for the headers/methods/response codes?

I recommend this to these people 🙆‍♀️

People who are not majoring in the field but want to become web, app, or server developers

Front-end developer who doesn't know much about back-end

People who want to know only the major contents that are frequently used in practice


Lecture Features ✨

The concept part is explained with pictures in the lecture notes.

We provide server code for practice .

Check the data actually being transmitted with Wireshark .

Try sending HTTP requests/responses directly and check through the network tab that it works as per theory.

Among thick network books, we will remove the less frequently used parts and condense and explain only the frequently used parts .


Learn things like this 📚

OSI 7 Layer + TCP/IP Model

Checking OSI 7 layers with Wireshark

Analyzing HTTP request/response headers

Understanding Cookies/Cache/CORS
Terms such as DNS, VPN, Proxy, Gateway HTTPS, HTTP2+3, WebSocket, etc.


With two-way communication
So that you can understand better.

The great thing about my lectures is the Q&A.

  • We aim for active learning through questions and answers .
  • If you have any questions, we will respond within 48 hours.
  • We are revising our classes or updating and supplementing them through news to answer frequently asked questions from our students.
  • Please study while freely asking questions related to the lecture. It will help you understand the content better!

Things to note before taking the class 📢

Practice environment

  • Operating System and Version (OS): Based on Windows 11, but other operating systems are also fine.
  • Tools used: WireShark latest version, node.js LTS version

Learning Materials

Player Knowledge and Notes

  • All you need to know is what a LAN cable is.

Expected Questions Q&A 💬

Q. I heard that you have experience with connecting a LAN cable. Is that true?

Yes, I will start the lecture from the LAN cable.

Q. Will I really gain the same knowledge as a specialist?

You will know less than a specialist, but you can save time by not having to learn useless knowledge that a specialist learns in the field.

Q. Is it useful for backend aspirants as well?

Yes. You will use the concepts that come out here for the rest of your life. However, depending on the type of backend development you do, you may need to study additional related parts. For example, if you do socket programming, you will need to study the L4 layer more intensively. You can think of it as a lecture to learn keywords.

Reference) Complete roadmap for Zero Second Lecture

Q. Are there any programs I need to install in advance?

It is recommended to install wireshark and node.js.


Recommended for
these people!

Who is this course right for?

  • People who are not majoring in the field but want to become web/app developers

  • Front-end developer who doesn't know much about back-end

  • People who want to know only the major contents that are frequently used in practice

Need to know before starting?

  • Experience connecting a LAN cable to a computer

Hello
This is zerocho

64,143

Students

1,541

Reviews

9,623

Answers

4.8

Rating

22

Courses

제 강의의 장점은 Q&A입니다(인프런 답변왕 2회 수상). 24시간 이내에 최대한 답변드립니다! 같이 고민한다는 느낌으로 답변 드릴게요!

One of the key strengths of my courses is the Q&A support. (Winner of the Inflearn Q&A King award twice) I respond to your questions within 24 hours, doing my best to help you out! You’ll feel like we’re solving the problems together.

👉ZeroCho Lectures
제로초 강의 전체 로드맵. A complete roadmap of all my courses is available here.

– Node.js교과서, 코딩자율학습 제로초의 자바스크립트, Let's Get IT 자바스크립트, 타입스크립트 교과서 저자 
ZeroCho.com 운영자
– 현) 유튜브에서 ZeroCho TV로 개발 관련 방송중 
– 현) 스모어톡 CTO 
– 전) 오늘의픽업 CTO(카카오모빌리티에 엑싯 후 카카오모빌리티 최연소 개발파트장)

  • Author of Node.js Textbook, Self-Guided JavaScript by ZeroCho, Let's Get IT JavaScript, and TypeScript Textbook

  • Operator of ZeroCho.com

  • Currently running a YouTube channel ZeroCho TV, covering development topics

  • CTO at SmoreTalk

  • Former CTO at Today Pickup (acquired by Kakao Mobility, where I became the youngest lead developer)

More

Reviews

All

27 reviews

4.8

27 reviews

  • 박병후님의 프로필 이미지
    박병후

    Reviews 4

    Average Rating 5.0

    5

    100% enrolled

    잘 들었습니다! 몰랐거나 애매하게 알고 있었던 개념들이 한번에 정리되어서 굉장히 좋았어요!

    • sora.ahn님의 프로필 이미지
      sora.ahn

      Reviews 10

      Average Rating 5.0

      5

      61% enrolled

      • Chaeyeon Lee님의 프로필 이미지
        Chaeyeon Lee

        Reviews 2

        Average Rating 4.0

        5

        100% enrolled

        아직 세션 1만 들었는데 저는 만족스럽습니다. 몇년전 정처기 딸때 필기 공부하면서 osi 7계층 처음 알게 됐는데 공부하면서도 뭔소리지 이해안되고 달달 외웠던 기억이 있습니다.. 얼마전까지도 7계층은 알지만 각 층에 대한 정확한 이해가 부족했는데 첨으로 이해하게 되었어요. 중간중간 말씀해주시는 용어들 검색하고 정리하면서 공부하느라 한강한강 오래 걸리긴 했는데 꽤 만족스럽습니다. 비전공자 1년차 프엔 개발자인데 cs책이나 인강을 봐도 잘 이해 안되는점? 어렵다라고 생각해서 항상 알게모르게 전공자에 대한 부러움 이런게 있었는데 이 강의를 계기로 나도 이해할수 있구나, 더 열심히 공부해야겠다고 생각했습니다. 감사합니다. 😍

        • 정현섭님의 프로필 이미지
          정현섭

          Reviews 1

          Average Rating 5.0

          5

          100% enrolled

          전공자가 들어도 이미 공부했던 내용을 다시 복습하며 다시 한 번 전반적인 네트워크 및 HTTP 관련한 지식을 많이 배울 수 있는 강의라 강추합니다!

          • 두부님의 프로필 이미지
            두부

            Reviews 1

            Average Rating 4.0

            4

            100% enrolled

            비전공자라 항상 지식에 구멍이 있다고 생각했는데 이 강의를 통해 부족했던 부분들을 많이 배우게된 것 같습니다. 강의길이도 한편한편 너무 길지않아서 완강할 수 있었어요! 좋은 강의 감사합니다 :)

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