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  3. In low-speed network,it is usually adequ

In low-speed network,it is usually adequ

题库2022-08-02  17
问题 In low-speed network,it is usually adequate to wait for congestion to occur and then react to it by telling the source of packets to slow down.In high-speed networks, this approach often works poorly, because in the（71）between sending the notification and notification arriving at the source, thousands of additional（本题）may arrive.In ATM network, a major tool for preventing（73）is（74）control.When a host wants a new virtual（75）,it must describe the traffic to be offered and the service expected.A.packetsB.cellsC.messageD.files
选项
答案 A
解析 在低速网络中，通常采用碰到拥塞时，通过向源端反映使其降低发送速率。而在告诉网络中，这种方式将会恶化，因为在发送通告和通告到达之间会有成千上万的其它数据包到达。在ATM网络中，主要采用允许控制来避免拥塞，当有一台主机要建立一条新的虚连接时，它必须描述它所需的流量和服务等级。
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本试题收录于： 中级 网络工程师题库软件水平考试初中高级分类

中级 网络工程师

软件水平考试初中高级

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