You replaced your Layer 3 switch， which is the default gateway of the end users. Many users cannot access anything now， including email， Internet， and other applications， although other users do not have any issues. All of the applications are hosted in an outsourced data center. In order to fix the problem， which one of these actions should you take？ （） [" Clear the MAC address table in the switch."," Clear the ARP cache in the switch."," Clear the ARP cache in the end devices."," Clear the ARP cache in the application servers."]
书名号用来标明书名、篇名、（）等。 ["报社名","作者名","报刊名","印刷厂"]
在1350OMS-PKT管理下，一个网内ENE网元与其它PTN设备工作在同一个业务域内，问ENE与其它设备通过什么接口连接（） ["NNI","UNI","IWI"]
简述食品酿造的一般历程？
8259A在中断处理过程中，接到CPU的第二个INTA时，所做的操作是（）。 ["使ISR（中断服务寄存器）中优先级最高的位置位","将中断类型号送上数据总线","使ISR（中断服务寄存器）中优先级最高的位复位","使IRR（中断请求寄存器）中相应位置位"]
信用证
