Click the “Blue WeChat Name” Under the Title to Quickly Follow Networking issues are relatively specialized, but understanding some basic knowledge can be very helpful in troubleshooting simple problems. This article from the technical community, “Illustration of 60 Basic Networking Knowledge Points”, explains some basic knowledge related to networks that can be learned and understood. … Read more
What is a Communication Network There is a network surrounding us at all times, such as telephone networks, telegraph networks, television networks, computer networks, etc.; even within our bodies, there are many network systems, such as the nervous system and the digestive system. The most typical example is the computer network, which is a combination … Read more
Click the blue text above to follow us Resource Sharing Huawei Certification Beginner to Advanced Practical Course ↓ Scan the QR code for practical video lessons ↓ 1. Essential Conditions for Network Troubleshooting Why do we need to discuss essential conditions first? Because the network troubleshooting discussed here is not just about using a small … 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
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
Click the blue text Follow us In daily life, when shopping online or mailing an item, we need to fill in both parties’ addresses, contact information, whether insurance is needed, and other details. Additionally, the courier company may have other regulations to be added to the purchase and mailing details. The purpose of this is … Read more
Introduction Network Protocols When we connect to the internet using our mobile phones, we utilize many network protocols. Starting from the connection to WiFi, we use the 802.11 (i.e., WLAN) protocol to connect to the network; the phone automatically obtains network configuration using the DHCP protocol, and only after getting the configuration can the phone … Read more
Cisco Certification | Huawei Certification | IT Technology | Network Engineer 👇 3000 people technical exchange QQ group Note [Official Account] for faster approval In the wave of digitalization, we interact with various network devices and applications every day. But have you ever thought about what enables these devices to communicate smoothly and achieve seamless … Read more
Click the blue text above to follow us Resource Release Huawei Certified Beginner to Advanced Practical Course ↓ Scan to watch the video ↓ 1 1. OSI Reference Model The seven-layer model, also known as OSI (Open System Interconnection), is a standard framework established by the International Organization for Standardization (ISO) for interconnecting computer or … Read more
Preface Network Protocols When we connect to the internet using our mobile phones, we use many network protocols. Starting from connecting the phone to WiFi, the 802.11 (i.e., WLAN) protocol is used to access the network; the phone automatically obtains network configuration using the DHCP protocol, and only after obtaining the configuration can the phone … Read more