A Comprehensive Explanation of Computer Network Principles Introduction Hello everyone, I am Tai Dou Xian Ruo Ru, a content creator focused on explaining technology in simple terms. This time I will share knowledge related to the principles of computer networks. I believe the content of this article is already very easy to understand, and I … Read more
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1. Overview of Cybersecurity 1.1 Definition Information Security: The technical and managerial security measures established and adopted for data processing systems, protecting computer hardware, software, and data from accidental and malicious destruction, alteration, and disclosure. Cybersecurity: Prevent unauthorized users from accessing information Prevent unauthorized attempts to destroy or modify information 1.2 Characteristics of Information Security … Read more
Internet Internet The Internet is the largest network in the world today, known as the “network of networks”. It is a massive network that interconnects all other networks. The components of the Internet: Edge part: Host Core part: A large number of networks and the routers connecting these networks (this router is not the one … Read more
No matter how one’s mindset changes, technology remains the most powerful weapon in the hands of network engineers! Today’s technical points are explained from small details, which can help beginners solve basic literacy issues and allow experienced network engineers to “review and learn anew”. Let’s take a look together~ 01 LAN (Local Area Network) Typically … Read more
Author: Shui De Original: http://blog.csdn.net/jxh_123/article/details/40316081 1. OSI, TCP/IP, and Five-Layer Protocol Architecture OSI Layers (7 layers): Physical Layer, Data Link Layer, Network Layer, Transport Layer, Session Layer, Presentation Layer, Application Layer. TCP/IP Layers (4 layers): Network Interface Layer, Internet Layer, Transport Layer, Application Layer. Five-Layer Protocol (5 layers): Physical Layer, Data Link Layer, Network Layer, … Read more
2024 Tianjin Adult Higher Education Entrance Exam Computer Preparation Plan Summary of Chapter Key Points, Please Click Below 👇 [Adult Higher Education Preparation] Key Points for Chapter One of Computer Fundamentals [Adult Higher Education Preparation] Key Points for Chapter Two of Computer Fundamentals [Adult Higher Education Preparation] Key Points for Chapter Three of Computer Fundamentals … Read more
Directory Some friends asked: Why can’t we go online without configuring an IP address? What is the IP protocol? This starts with the TCP/IP protocol; the Internet uses the TCP/IP protocol, among which the IP protocol is one of the most important protocols. The IP protocol sends data packets to the destination host based on … Read more
This article is a translation of “Let’s code a TCP/IP stack, 1: Ethernet & ARP”. The translation process is also a learning experience for myself. Writing your own TCP/IP stack may seem like a daunting task. In fact, TCP has accumulated many specifications over its more than thirty years of life. However, the core specifications … Read more
[Question:] What exactly are the three protocols: NetBEUI, IPX/SPX, and TCP/IP? Especially the first two, sometimes they are installed and sometimes not. Why is that? What are the differences and unique features? When must they be installed? [Answer:] Many users have asked this question. Here, I have researched and compiled relevant information to provide a … Read more