The user datagram protocol (UDP) is one of the protocols that enables data transfer across networks on the internet. It is a message-oriented communication protocol that allows computing devices and applications to send data without verifying delivery. UDP is best suited for real-time communication ...
UDP(用户数据报协议)和TCP(传输控制协议)均为传输层协议,本题考查对OSI或TCP/IP模型中各层协议的理解。以下为逐项分析:A. Network层(网络层):隶属于第三层,负责逻辑寻址和路由选择,典型协议为IP(互联网协议)。UDP/TCP不在此层运作,排除。B. Transport层(传输层):位于第四层,核心功能是端到端通信管理、流量...
UDP:User Datagram Protocol Connection TCP:Is a connection-oriented protocol. This means the system is able to send and receive data. UDP:Is a connection-less protocol. This means the service can only send packets. Protocols TCP:HTTP, HTTPs, FTP, SMTP, Telnet UDP:DNS, DHCP, TFTP, SNMP, R...
由于TCP确实有创建的连接,保证担保,有序传递,但它确实比很多的UDP多。该花费的TCP在速度方面,这就是为什么UDP是更适合对速度是一个问题,例如在线视频流媒体,电视节目或在线多玩家游戏。 重量级与轻量级 因为上面提到的开销,传输控制协议被认为是重重量相比重量轻UDP协议。 UDP的简单的是提供信息不承建立连接,并保证...
It can only handle a single network interface and contains the IP, ICMP, UDP and TCP protocols...
UDP also deals with packets being sent. But the sender just continues sending the packets, it doesn’t wait for a response from recipient. As the recipient if you miss the packets – you can’t retry. From a performance perspective , as UDP does not have this extra overhead – i.e se...
upon the previous one. Layers above the Transport layer (Session, Presentation, and Application) are highly specialized and cannot help us organize real-time multiplayer. Therefore, we have to stop at the Transport Layer and use its TCP and UDP protocols for optimal data exchange between players...
5Reliability and congestion control UDP概述 UDP仅在IP的数据报服务之上增加了两个最基本的服务:复用和分用以及差错检测 如果应用开发者选择UDP而非TCP,那么应用程序几乎直接与IP打交道 主要因为UDP具有如下优点: 1)UDP无须建立连接 因此UDP不会引入建立连接的时延 试想如果DNS运行在TCP而非UDP上,...
Transmission Control Protocol (TCP)andUser Datagram Protocol (UDP)are the major protocols operating at Transport Layer.Transmission Control Protocol (TCP)andUser Datagram Protocol (UDP)operate very differently and you can chooseTransmission Control Protocol (TCP)orUser Datagram Protocol (UDP)depending on...
假如是IP数据报,IP协议再根据IP首部中的“上层协议”字段确定该数据报的有效载荷是TCP、UDP、ICMP还是IGMP,然后交给相应的协议处理。假如是TCP段或UDP段,TCP或UDP协议再根据TCP首部或UDP首部的“端口号”字段确定应该将应用层数据交给哪个用户进程。IP地址是标识网络中不同主机的地址,而端口号就是同一台主机上标识...