2. 计算机
  3. To a router，a fIow is a (71) of packets that share the same characterstics，such as traVeling the same (72)，using the same (73)，h

To a router，a fIow is a (71) of packets that share the same characterstics，such as traVeling the same (72)，using the same (73)，h

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问题 To a router，a fIow is a (71) of packets that share the same characterstics，such as traVeling the same (72)，using the same (73)，haVing the same kind of secu rity，and so on．A router that supports the handling of fIow labels has a (74) table．The tabIe has an entry for each active flow Iabel：each entry defines the (75)required by the corresponding fIow label．
(75)
选项 A、quality
B、traffic
C、serVices
D、route
答案C
解析 对于路由器来说，流就是一系列(sequence)具有相同特性的数据包，例如通过相同的路径(path)，使用相同资源(resources)，具有相同的安全等级，等等。对于支持流标签的路由器，要有一张流标签(flowlabel)表。这张表中有各条当前活跃的流标签的条目，每个条目定义了相应流标签的服务(services)要求。
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