What is the most basic communication protocol of the Internet?

The difference between network access license and network access trial: 1. The colors on the logo are different. The network access trial logo is green, while the network access license logo is blue; 2. The usage time of the two is different, and the network access trial is Users are given a one-year trial period, but the network access license is for direct use without time limit.

The main communication protocol used by the Internet is "TCP/IP protocol", TCP/IP transmission protocol, namely transmission control/network protocol, also called network communication protocol; it is the most basic communication protocol in the use of the network, TCP/IP The IP transport protocol stipulates the standards and methods for communication between various parts of the Internet.

The most basic communication protocol on the Internet is the TCP/IP protocol. TCP/IP refers to a protocol suite that can realize information transmission between multiple different networks. It is the most basic communication protocol in the use of networks. It stipulates the standards and methods for communication in various parts of the Internet.

There are four traditional main service functions of the Internet: 1. Remote login service Telnet, which is a terminal emulation protocol that provides remote connection services; 2. File transfer service FTP, which allows users to transfer files between computers; 3. Email service E-mail ; 4. WWW World Wide Web.

How to implement the MQTT communication protocol in PHP? Introduction: With the rise of the Internet of Things, MQTT (MessageQueueTelemetryTransport) has become a very important communication protocol. The MQTT protocol is a lightweight protocol suitable for communication in low-bandwidth and unstable network environments. This article will introduce how to implement the MQTT communication protocol in PHP, with code examples. Step 1: Install the MQTT library First, we need to install the MQTT library for PHP

The Internet is a collection of global information resources. It is a worldwide computer network. It is a logical network interconnected by many small networks (subnets). Each subnet is connected to several computers (hosts). ); The Internet aims to exchange information resources with each other, is based on some common protocols, and is formed through many routers and the public Internet. It is a collection of information resources and resource sharing.

tcp/ip is the communication protocol of the Internet. tcp/ip (Transmission Control Protocol/Internet Protocol) refers to a protocol suite that can realize information transmission between multiple different networks. It is the most basic communication protocol in the use of networks; TCP/IP transmission protocol plays an important role in various parts of the Internet. Standards and methods for conducting communications are specified. The TCP/IP transmission protocol is strictly a four-layer architecture, including the application layer, transport layer, network layer and data link layer.

Every host connected to the Internet has a uniquely identifiable address called an IP address. The IP address is a unified address format provided by the IP protocol. It assigns a logical address to each network and each host on the Internet to shield the differences in physical addresses. Because of the unique address such as IP address, it is ensured that users can efficiently and conveniently select the objects they need from thousands of computers when operating on connected computers.