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Routing in circuit-switching networks ha

考试题库2022-08-02  98
问题 Routing in circuit-switching networks has traditionally involved a static routing strategy with the use of（　　）paths to respond to increased load.Modern routing strategies provide more adaptive and flexible approaches.The routing function of a packet-switching network attempts to find the least-cost route through the network,with cost based on the number of（　　）,expected delay,or other metrics.In virtually all packet-switching networks,some sort of adaptive routing technique is used.Adaptive routing algorithms typically rely on the（　　）of information about traffic conditions among nodes.In most cases,adaptive strategies depend on status information that is（　　）at one place but used at another.There is a tradeoff here between the quality of the information and the amount of（　　）.The exchanged information is itself a load on the constituent networks,causing a performance degradation.问题1选项A.onlyB.singleC.alternateD.series问题2选项A.hopsB.sitesC.membersD.points问题3选项A.exchangeB.transportationC.receptionD.transmission问题4选项A.rejectedB.collectedC.discardedD.transmitted问题5选项A.packetsB.informationC.dataD.overhead
选项
答案 CAABB
解析 电路交换网络中的路由传统上涉及使用（）路径来响应增加负载的静态路由策略。现代路由策略提供了更灵活和更灵活的方法。分组交换网络的路由功能试图通过网络发现成本最低的路由，其成本基于（）的数量，预期的延迟或其它度量。在几乎所有的分组交换网络中，某种使用自适应路由技术。使用自适应路由技术。自适应路由算法通常依赖于有关节点间流量情况的信息。在大多数情况下，自适应策略依赖于（）在一个地方但在另一个地方使用的状态信息。这里信息的质量和（）的数量之间有一个权衡。交换的信息本身就是组成网络上的负载，导致性能下降。
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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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