2. 计算机
  3. Flow control is a function that prevents network congestion by ensuring that(71)do not overwhelm(72)with data. There are thre

Flow control is a function that prevents network congestion by ensuring that(71)do not overwhelm(72)with data. There are thre

admin2009-02-15  58
问题 Flow control is a function that prevents network congestion by ensuring that(71)do not overwhelm(72)with data.
   There are three commonly used methods for handling network congestion.(73)is used by network devices to temporarily store bursts of excess data in memory until they can be processed(74)are used by receiving devices to help prevent their buffers from overflowing.(75)is a flow-control scheme in which the source device requires an acknowledgment from the destination aider a certain number of packets have been transmitted.
选项 A、Buffer
B、Source-quench messages
C、Window
D、Windowing
E、Buffering
答案D
解析 流量控制是一种功能，通过确保发送方不会使接收方被数据淹没，从而阻止网络拥塞。一般有3种方法来处理拥塞。网络设备使用缓；中的手段来将突发过量的数据暂时存放在存储器里直到数据能被处理。接收方使用源结束消息帮助阻止他们的缓冲区溢出。窗口是一种流量控制方案，在这种方案里，源装置在传输完一定数量的报文后要求目的接收方给一个确认。
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