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...
While UDP provides the speed you need to live a comfortable digital life, UDP isn’t as reliable as TCP. This is something to be aware of whensetting up a VPN, because most VPNs run on UDP protocols to keep connection speeds high. Here are some disadvantages of using UDP: It’s conne...
ICMP, UDP and TCP protocols.”，所以代码较少，其源码不到6KB，RAM仅占用几百字节。由于...
UDP常用于一次性传输较少数据的网络应用,如DNS,SNMP等,因为对于这些应用,若采用TCP,则将为连接创建,维护和拆除带来不小的开销 UDP也常用于多媒体应用(如IP电话,实时视频会议,流媒体等),显然,可靠数据传输对这些应用来说并不是最重要的,但TCP的拥塞控制会导致数据出现较大的延迟,这是它们不可容忍的 UDP不保证可...
1.3 Two Main Internet Transport Protocols TCP: Transmission Control Protocol Reliable, in-order Delivery Congestion Control Flow Control Connection Setup UDP: User Datagram Protocol Unreliable, unordered Delivery 「No-frills」extension of “best-effort” IP ...
TCP提供的交付保证,这意味着使用TCP协议发送的消息是保证交付给客户。如果邮件在运输途中丢失,然后它是用重发,这是由TCP协议本身处理回收。在另一方面,UDP是不可靠的,它不提供任何保证交付。数据报包可能在运输过程中丢失。这就是为什么UDP是不适合用于要求有保证的递送方案。
Seen form the Protocol point of view we have to say that neither TCP/IP nor UDP/IP are cyclic Protocols. At least not as long as you program them that way. You usually senda Telegram to a IP Address and the partner with this IP Address receives it. This is the same for ...
This article explains why some services use both the protocols TCP and UDP.Applies to: Windows Server 2003 Original KB number: 556000SUMMARYDNS and some other services work on both the protocols. We'll take an example of DNS Service. Two protocols are different from each other. TCP is a ...
and packet loss. In this paper, UDP and TCP protocols are used as traffic to satisfy bandwidth requirement while optimizing network throughput for providing QoS using clustering approach. The results obtained through NCTUns simulator are used for analysis of throughput for both UDP and TCP traffics...
From a performance perspective , as UDP does not have this extra overhead – i.e sending messages back to sender and error checking , UDP offers greater performance . Whereas TCP offers greater reliability Of course , the applications decide which protocol to use , weighing up latency and loss...