2018年11月网络规划设计师模拟试题上午（二）之二十四

摘要：对于【网络规划设计师】软考考试而言，试题无疑是最重要的学习资料之一。在软考备考过程中，吃透试题、掌握试题所考知识点、熟悉试题的出题思路，对我们提升分数的效果是最明显的，通过对试题的反复练习，还可以查漏补缺。今天，给大家带来【2018年11月网络规划设计师模拟试题上午（二）】部分试题的详解，一起来看看吧~



1、采用网络测试工具（ ）可以测试网络传输中的误码率。
A、 OTDR
B、 TDR
C、 BERT
D、 Sniffer

答案:C
答题解析:

OTDR (Optical Time Domain Reflectometer)，光时域反射仪，是利用光线在光纤中传输时的瑞利散射和菲涅尔反射所产生的背向散射而制成的精密的光电一体化仪表，它被广泛应用于光缆线路的维护、施工之中，可进行光纤长度、光纤的传输衰减、接头衰减和故障定位等的测量。
TDR (Time Domain Reflectometry)，时域反射仪，一种对反射波进行分析的遥控测量技术，在遥控位置掌握被测量物件的状况。在网络介质侧试中可用于测试电缆断点。
BERT (Bit Error Ratio Tester)，误码率测试仪，用于测试网络传输中的误码率。
Sniffer是一种网络数据嗅探器，是一种基于被动侦听原理的网络分析方式。使用这种技术方式，可以监视网络的状态、数据流动情况以及网络上传输的信息。

2、routing in circuit-switching networks has traditionally involved a static routing strategy with the use of (请作答此空) 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  adaptive routing technique is used . adaptive routing algorithms typically rely on the ( ) information about traffic conditions among nodes . in most cases , adaptive strategies depend status information that is ( ) at one place but used at another . there is a tradeoff here tween the quality of the information and the amount of ( ) . the exchanged information itself a load on the constituent networks , causing a performance degradation
A、only
B、single
C、alternate
D、series

答案:C
答题解析:略

3、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 (请作答此空)expected delay , or other metrics in virtually all packet-switching networks , some sort  adaptive routing technique is used . adaptive routing algorithms typically rely on the ( ) information about traffic conditions among nodes . in most cases , adaptive strategies depend status information that is ( ) at one place but used at another . there is a tradeoff here tween the quality of the information and the amount of ( ) . the exchanged information itself a load on the constituent networks , causing a performance degradation
A、hops
B、sites
C、members
D、points

答案:A
答题解析:略

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