下列关于文档一体化的意义说法不正确的是（） ["保证档案信息收集完整、系统、准确","从文件生成到归档全程控制","数据信息重复利用，提高工作效率","完整、真实地反映集团总部信息化管理"]
一个公司正在安装IP电话。电话和办公室电脑连接到同个设备上，为了保证电话数据的最大传输量，公司需要确定电话流量是和办公室电脑的数据流量不是在同一个网络上。以下哪个是最好的网络设备，用来直连到电话和电脑，并且，哪种技术应该被配置在该设备上？（） ["hub","router","switch","STP","subinterfaces","VLAN"]
正态分布总体样本落在［μ－3σ，μ＋3σ］区间的概率约为（）左右。 ["A.95.0％ ","B.95.4％ ","C.99.7％ ","D.68.3％"]
下列选项，属于出车前安全检视的内容的是（）。 ["查看行车记录","检查油液","检查轮毂温度","检查随车工具"]
The OSPF Hello protocol performs which of the following tasks (Choose two.)（）。 ["It provides dynamic neighbor discovery.","It detects unreachable neighbors in 90 second intervals.","It maintains neighbor relationships.","It negotiates correctness parameters between neighboring interfaces.","Ituses timers to elect the router with the fastest links as the designated router.","It broadcasts hello packets throughout the internetwork to discover all routers that are running OSPF."]
强力混合机电机型号为（）。
