It has become necessary to configure an existing serial interface to accept a second Frame Relay virtual circuit.Which of the following processes are required to accomplish this task?（） [" configure static frame relay map entries for each subinterface network."," remove the ip address from the physical interface"," create the virtual interfaces with the interface command"," configure each subinterface with its own IP address"," disable split horizon to prevent routing loops between the subinterface networks"," encapsulate the physical interface with multipoint PPP"]
动态相关性
以下不属于生命周期法特点的是（） ["强调区分工作阶段","强调面向用户","强调尽早开始编程","强调文档管理"]
如果让ping命令一直ping某一个主机，应该使用（）参数。 ["-A","-S","-T","–F"]
后生矿物
感受器
