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The Basics of CS Knowledge | Design Patterns Network Operating System Database Data Structure

CS knowledge lectures on design patterns, networks, operating systems, databases, etc. from the author of the #1 book in Korea, "CS Major Knowledge Notes for Interviews"! Covers all the concepts needed for CS interviews and the latest past questions!

(4.8) 244 reviews

3,864 learners

  • kundol
Tech Interview
Interview
Operating System

Reviews from Early Learners

What you will learn!

  • Design Pattern

  • Operating System

  • network

  • database

  • Data structure

  • Preparation for the latest CS interview questions from N and K companies

[Actual Kakao Intern Recruitment Notice]

CS Knowledge Interview
How should I prepare? 💬

CS knowledge refers to design patterns, networks, operating systems, databases, and data structures. There was a problem that there was too much to study in specialized books, and there were many times when I got confused because there was incorrect knowledge when I studied online.

To solve such problems, I wrote a book called "CS Major Knowledge Notes for Interviews" and created a lecture that can finish CS knowledge in one go based on the contents of this book and important contents that are not in the book.

No. 1 bestseller in IT in Korea!
The best book explaining CS major knowledge in Korea

'CS Major Knowledge Notes for Interviews'

Now available as video lectures on Inflearn.

[#1 in Aladdin IT sector]


[YES24 No. 1]


[YES24 average rating 9.9]

What are the benefits of this course ?

This lecture contains in-depth CS knowledge that can help you prepare for follow-up questions, including the core CS knowledge in the best-quality CS knowledge book in Korea , "CS Major Knowledge for Interviews", as well as core CS knowledge that is not in the book, as well as knowledge that can help you prepare for previous interview questions based on the actual interview experiences of the author, readers, and students.

A DEEP DIVE content explaining how to resolve server overload caused by large amounts of traffic, a question that came up in an actual interview.

A whole 24 hours!!
You can finish CS knowledge with this one lecture.

I want to finish everything about "CS knowledge" with this one lecture . I'm sorry, but you can't prepare 100% for CS interviews by only studying past questions. I don't just study past questions, but also the core basic concepts of CS, and in-depth knowledge to prepare for follow-up questions. I want to say that this is the right way to study CS knowledge.

A total of 500 pages
Amazing teaching materials provided! 😎

We provide a total of 500 pages of lecture materials that cover the essential elements of CS knowledge, from essential developer knowledge to databases, operating systems, and interview tips. Through this, we have tried to cover the entire CS knowledge content in one lecture.

The contents of the lesson are as follows.

In the case of differences that are frequently asked in interviews, they are organized into a neat table.

Terms that may be confusing or require further explanation are organized in [Appendix].

A clear explanation of the confusing REST API.

This is a frequently asked question and a way to build a shopping mall ERD with deep knowledge.

Usually, when explaining JWT tokens in lectures, we explain using only one JWT token, but in practice, when using JWT, authentication logic is performed based on two tokens: an access token and a refresh token. This is the most correct way to explain it.

A practical example of practicing JWT token authentication logic using simple yet quality code suitable for practical use.

An explanation with fun pictures that will stay in your memory for a long time.

Are you doing a lightning strike?
Study based on importance!


If you don't have time, you can just listen to the lectures with high importance! It's better to listen to all the lectures, but... for those who are cramming, I've ranked the importance based on the star rating.

No more studying countless textbooks

I want to avoid having to study by scouring the Internet.

Don't waste your time

I hope that you will be able to finish your interview regarding "CS knowledge" with this one lecture.


The curriculum
Check it out. 📚

Learn CS major knowledge based on design patterns, networks, operating systems, databases, data structures, and past interview questions.

Chapter 0
Essential knowledge for developers

We provide detailed information on the basic knowledge developers need, such as JSON, API, XML, Docker, and containers, which are essential knowledge for developers and basic knowledge questions that frequently come up in interviews.

Chapter 1
Design Pattern

Libraries and frameworks tend to include design patterns as a basic feature. That's why, in interviews, they sometimes ask about design patterns as if they know the library well. They tell you not only the concept of design patterns, but also how they are actually included in the library.

Chapter 2
network

It provides information on important IPs, HTTPs, REST APIs, etc. in the network, and how to solve large-scale traffic that frequently comes up as a follow-up question. It goes into the important parts in depth and explains only the key points of the unimportant parts.

Chapter 3
Operating system

It provides an overview of the operating system, detailing processes, system calls, kernel, memory structures, etc.

Chapter 4
Database

Starting with entities, which are the basics of a database, we will focus on important parts of a database, such as transactions, indexing, isolation, normalization, and deadlocks in a database.

Chapter 5
Data Structure

First, we will learn the basics of data structures by explaining time complexity and space complexity, and then cover all the essential data structures such as queues and stacks.

Chapter 6
Interview know-how

If you have covered CS interviews so far, I will provide you with know-how based on my actual experience in personality and technical interviews and the "model answers" I gave during interviews.

* Note: All the code for the lecture is available at https://github.com/wnghdcjfe/csnote !


This lecture is
What's different? 😎

  • The best quality based on the No. 1 domestic IT bestseller , "CS specialized knowledge notes for interviews"
  • Learn actual interview questions from major IT companies + core knowledge needed for CS interviews
  • ✅ Revealing model interview answers actually given in interviews at top-tier domestic companies such as Naver and Kakao
  • ✅ Provides 340 pages of lecture materials and over 100 lectures!
  • You can fully learn the CS knowledge required for an interview.
  • The best CS knowledge lecture in Korea
  • It starts now.

Average rating 5.0!
I am proud to say that this is the best lecture ever. 🔥


https://www.inflearn.com/pages/2022-award

I believe that the best lectures are those that are continuously updated. As proof of this, in 2022, it was selected as the lecture with the most updates among all lectures in Inflearn. We will always strive to provide the best lectures by quickly reflecting feedback from students and other areas for improvement.

https://www.inflearn.com/pages/award-2023

2023. It was selected as the lecture with the most reviews among all lectures in Inflearn. I am proud that it is a lecture that has received a lot of positive responses from students and is very helpful for students' CS interviews.


Knowledge Sharer Interview 💬

Q. Is there anyone you would recommend this course to?

I would like to recommend this to those who have some programming experience and are now preparing for an interview at their desired company but don't know what to prepare for, as well as those who are non-majors or majors and want to acquire solid CS knowledge.

Q. Can I prepare for all CS interviews with this course?

Yes, it is possible. First, most of the content of this lecture is based on concepts from CS interview questions. In other words, it is a lecture prepared based on questions from actual IT majors. Second, I think it is more solid because the concepts are prepared based on my experience as well as the interview experiences of my developer friends. Third, I prepare not only for concepts from previous exams but also for core concepts of CS knowledge that are likely to appear. And furthermore, if students need these concepts, I review them and produce them to prepare for the "latest questions." That is why I think you can prepare for CS interviews with just this one lecture.

Q. How many days will it take to respond to my question?

You can expect a response within an hour, but usually it takes 1 to 3 days (excluding weekends and public holidays).

Q. What is the best way to study for this course?

Well.. Actually, I would like you to study with a strategy of memorizing all the contents of this lecture. Because this lecture prepares the general and core contents of CS + in-depth knowledge + interview questions, I think you will be able to perfectly prepare for the CS interview if you memorize all the contents of this lecture. That is why you should study slowly. I think it is best to study by watching the lecture for about 30 minutes to 1 hour a day, understanding and memorizing it, and setting aside about 2 months to study step by step.

Q. It seems like the training is mainly focused on Java or JavaScript, but I mainly work with Go and Python. Will I be able to understand it?

Yes, I understand. If you know at least one language, I've prepared a code that you can understand and that's about the same level of difficulty.


Recommended for
these people

Who is this course right for?

  • Developers who have some programming experience and want to learn CS knowledge

  • Majors or non-majors who want to learn CS knowledge

Need to know before starting?

  • You should know at least one programming language.

Hello
This is

8,468

Learners

554

Reviews

3,284

Answers

4.8

Rating

2

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Curriculum

All

213 lectures ∙ (25hr 10min)

Course Materials:

Lecture resources
Published: 
Last updated: 

Reviews

All

244 reviews

4.8

244 reviews

  • hitlbk2368님의 프로필 이미지
    hitlbk2368

    Reviews 1

    Average Rating 3.0

    3

    7% enrolled

    Tôi rất đồng cảm với tất cả những điểm được chỉ ra trong những bài đánh giá dài của người khác, và với tư cách là người mới học CS lần đầu, điều đó thật tai hại. Tôi rất tiếc khi mua nó mà không đọc các nhận xét trước. Có thể sẽ tốt cho việc xem xét nếu bạn biết mọi thứ trong mục lục, nhưng xét về giá cả, tôi không nghĩ cần thiết phải mua nó. Nếu bạn đang học lần đầu tiên, chỉ cần mua một cuốn sách.

    • devehoper5897

      Tôi nghĩ nhận xét của người này là chính xác nhất. Đây là một bài giảng có thể dễ dàng được trình bày trong một cuốn sách.

    • kundol
      Instructor

      Kể từ khi đánh giá đầu tiên của khóa học này đã được đăng. Chúng tôi đã rà soát lại tất cả các bài giảng, bổ sung những thiếu sót và cập nhật hơn 100 bài giảng. Xin lưu ý.

  • 2yonghyun님의 프로필 이미지
    2yonghyun

    Reviews 48

    Average Rating 5.0

    5

    53% enrolled

    Đó là một bài giảng hay cho phép bạn tóm tắt kiến ​​thức tổng thể về CS trong một khoảng thời gian ngắn.

    • kundol
      Instructor

      Xin chào YONGHYUN Cảm ơn bạn đã đánh giá. Nếu bạn có bất kỳ phản hồi nào sau khi nghe bài giảng, vui lòng gửi email cho chúng tôi bất cứ lúc nào. Nếu bạn có bất kỳ câu hỏi nào, vui lòng đăng lên bảng câu hỏi bất cứ lúc nào và chúng tôi sẽ phản hồi nhanh chóng. Chúng tôi sẽ cố gắng hết sức để cung cấp kiến ​​thức CS vững chắc. Cảm ơn Giảng viên Keundal được đăng.

  • minos님의 프로필 이미지
    minos

    Reviews 7

    Average Rating 4.6

    5

    6% enrolled

    Dù không học chuyên ngành nhưng tôi vẫn nghe như thể đang đọc một cuốn sách hoàn chỉnh. Tôi yêu lớp học này! Thực sự không có gì để nói về nó. Xây dựng kiến ​​thức CS cơ bản cho phỏng vấn và phát triển

    • kundol
      Instructor

      Xin chào Jas. Cảm ơn bạn đã đánh giá. Nếu bạn có bất kỳ phản hồi nào sau khi nghe bài giảng, vui lòng gửi email cho chúng tôi bất cứ lúc nào. Nếu bạn có bất kỳ câu hỏi nào, vui lòng đăng lên bảng câu hỏi bất cứ lúc nào và chúng tôi sẽ phản hồi nhanh chóng. Chúng tôi sẽ cố gắng hết sức để cung cấp kiến ​​thức CS vững chắc. Cảm ơn Giảng viên Keundal được đăng.

  • givejeong2468님의 프로필 이미지
    givejeong2468

    Reviews 24

    Average Rating 5.0

    5

    36% enrolled

    Là sinh viên không chuyên, tôi không có kiến ​​thức về CS nên luôn có nhiều lo lắng khi phỏng vấn kỹ thuật. Trong bài giảng, phần mạng chẳng hạn được trình bày trên trình duyệt để dễ hiểu hơn. Tôi đang lấp đầy những khoảng trống bằng cách lặp lại sách và bài giảng của người hướng dẫn, và cảm ơn bạn vì cuốn sách bài giảng xuất sắc!

    • kundol
      Instructor

      Xin chào, Jeonghyeon Kwon Cảm ơn bạn đã đánh giá. Nếu bạn có bất kỳ phản hồi nào sau khi nghe bài giảng, vui lòng gửi email cho chúng tôi bất cứ lúc nào. Nếu bạn có bất kỳ câu hỏi nào, vui lòng đăng lên bảng câu hỏi bất cứ lúc nào và chúng tôi sẽ phản hồi nhanh chóng. Chúng tôi sẽ cố gắng hết sức để cung cấp kiến ​​thức CS vững chắc. Cảm ơn Giảng viên Keundal được đăng.

  • june0619님의 프로필 이미지
    june0619

    Reviews 13

    Average Rating 5.0

    5

    13% enrolled

    Vì nội dung kiến ​​thức CS tổng thể được ôn tập nhanh chóng và có độ sâu phù hợp nên bạn có thể bổ sung nội dung mà không quá thừa hoặc thiếu. Giọng điệu và chất liệu được cung cấp cũng tốt. Tôi đã mua nó trước khi phỏng vấn, chỉ lấy những phần tôi không nhớ rõ và vượt qua cuộc phỏng vấn, nhờ đó tôi nghĩ mình đã làm tốt. Nội dung khóa học được cập nhật liên tục nên có vẻ như đây là một khóa học tuyệt vời để xem đi xem lại :)

    • kundol
      Instructor

      Xin chào tháng sáu. Cảm ơn bạn đã đánh giá. Nếu bạn có bất kỳ phản hồi nào sau khi nghe bài giảng, vui lòng gửi email cho chúng tôi bất cứ lúc nào. Nếu bạn có bất kỳ câu hỏi nào, vui lòng đăng lên bảng câu hỏi bất cứ lúc nào và chúng tôi sẽ phản hồi nhanh chóng. Chúng tôi sẽ cố gắng hết sức để cung cấp kiến ​​thức CS vững chắc. Cảm ơn Giảng viên Keundal được đăng.

$127.60

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