当学生A用两台Star—R2624路由器在做路由器广域网口连通实验时误将本端口路由器V.35线缆的插头插倒了。结果发现PING直连的路由器不通，请问此时需要查看路由器的状态应该是（）A、Serial 0 is up，line protocol is downB、Serial 0 is down，line protocol is downC、Serial 0 is down，line protocol is upD、Serial 0 is administratively down，line protocol is
当学生A用两台Star—R2624路由器在做路由器广域网口连通实验时误将本端口路由器V.35线缆的插头插倒了。结果发现PING直连的路由器不通，请问此时需要查看路由器的状态应该是（）
- A、Serial 0 is up，line protocol is down
- B、Serial 0 is down，line protocol is down
- C、Serial 0 is down，line protocol is up
- D、Serial 0 is administratively down，line protocol is
相关考题：
路由器上，命令“show int s0”的显示结果为：Serial0 is up,line protocol is down出现该结果的可能原因是（）A.端口处于关闭状态B.物理端口被烧毁C.两端设备协议不一致D.路由表中无路由
PPP链路的状态为serial number is administratively down,line protocol is down时,说明()。 A.物理链路有问题B.接口被管理员shutdown了C.参数配置不正确D.没大问题，重启路由器就行了
Which line from the output of the show ip interface command indicates that there is a Layer 1 problem?A．Serial0/1 is up, line protocol is downB．Serial0/1 is down, line protocol is downC．Serial0/1 is up, line protocol is upD．Serial0/1 is administratively down, line protocol is downE．None of the above
While logged into a router you manually shut down the serial 0 interface using the "shutdown" interface configuration command. You then issue the "show interface serial 0" command in exec mode. What could you expect the status of the serial 0 interface to be?（）A. Serial 0 is up, line protocol is upB. Serial 0 is up, line protocol is downC. Serial 0 is down, line protocol is downD. Serial 0 is down, line protocol is upE. Serial 0 is administratively down, line protocol is downF. Serial 0 is administratively down, line protocol is up
Part of the configuration files for routers testking1 and testking2 are displayed below:If you were to enter the show interface serial 0 command on router testking1,which of the following will be displayed?（）A. Serial 0 is down, line protocol is downB. Serial 0 is up, line protocol is upC. Open: IPCP, CDPCPD. LCP closedE. LCP open
Which line from the output of the show ip interface command indicates a layer 1 problem?() A. Serial0/1 is up, line protocol is downB. Serial0/1 is down, line protocol is downC. Serial0/1 is up, line protocol is upD. Serial0/1 is administratively down, line protocol is down
当学生A用两台Star—R2624路由器在做路由器广域网口连通实验时误将本端口路由器V.35线缆的插头插倒了。结果发现PING直连的路由器不通,请问此时需要查看路由器的状态应该是() A.Serial 0 is up，line protocol is downB.Serial 0 is down，line protocol is downC.Serial 0 is down，line protocol is upD.Serial 0 is administratively down，line protocol is
当用户端cisco路由器上用showinterface命令时line和lineprotocal可能出现的几种组合?()。 A.line down；line protocol downB.line down；line protocolC.line up；line protocol downD.line up；line protocol up
PPP链路的状态为serial number is administratively down,line protocol is down时，说明（）。 A、物理链路有问题B、接口被管理员shutdown了C、参数配置不正确D、没大问题，重启路由器就行了
While logged into a router you manually shut down the serial 0 interface using the "shutdown" interface configuration command. You then issue the "show interface serial 0" command in exec mode. What could you expect the status of the serial 0 interface to be?（）A、Serial 0 is up, line protocol is upB、Serial 0 is up, line protocol is downC、Serial 0 is down, line protocol is downD、Serial 0 is down, line protocol is upE、Serial 0 is administratively down, line protocol is downF、Serial 0 is administratively down, line protocol is up
路由器出现Serial interface-number is up，line protocol is down（DTE）的状态，可能出现的问题不包括（）。A、本地或远程路由器配置丢失B、线路故障C、CSU/DSU故障D、LINE未与CSU/DSU联接
如果执行了show interface serial 0命令而且出现了消息“Serial line is up，line protocol is up”，对于这条消息的正确解释是什么？（）A、链路正在接收和发送数据B、路由器已经正确配置了本地管理接口C、连接处于激活状态
下列（）状态是不可能在路由器的串行端口状态见到的。A、 Interface is up， line protocol is upB、 Interface is down， line protocol is downC、 Interface is down， line protocol is upD、 Interface is up， line protocol is down
Router# show interfaces serial 0/1 命令的输出显示了如下内容： Serial0/1 is down， line protocol is down. 线路协议为 down（关闭）的原因最可能是什么（）A、Serial0/1 为关闭状态B、路由器未连接电缆C、远程路由器正在使用 serial 0/0 接口D、尚未设置时钟频率
客户的两台路由器通过V.35 电缆背靠背连接在一起，并在V.35 接口上运行了PPP 协议，在其中一台路由器上有如下接口信息： [MSR-Serial0/0] display interface Serial 0/0 Serial6/0 current state： UP Line protocol current state： DOWN 从如上信息可以推测（）A、两路由器之间的物理连接正常，但PPP协议协商没有成功B、PPP的LCP协商有可能未通过C、PPP验证可能失败了D、两路由器V.35接口的IP地址有可能不在同一网段
客户路由器S0/0接入帧中继网络，在路由器的接口上有如下显示信息： Serial1/1 current state： UP Line protocol current state： DOWN Internet Address is 3.3.3.2/24 接口的协议状态为DOWN，那么据此分析（）A、接口可能封装了PPP协议B、物理链路可能有故障C、封装的LMI类型可能与远端不一致D、如果接口封装了帧中继协议，此时PVC的状态应该是DOWN
客户的两台路由器通过V.35 电缆背靠背连接在一起，其中一台路由器上有如下接口信息： [MSR-Serial0/0]display interface Serial 0/0 Serial0/0current state： UP Line protocol current state： UP Description： Serial6/0 Interface The Maximum Transmit Unit is 1500， Hold timer is 10（sec） Internet Address is 6.6.6.1/30 Primary Link layer protocol is PPP LCP opened， IPCP opened 从上述信息可以得知（）A、这台路由器已经和远端设备完成了PPP协商，并成功建立了PPP链路B、这台路由器和远端设备之间成功完成了PPP PAP或者CHAP的验证C、在这台路由器上已经可以ping通对端的地址6.6.6.2了D、 接口信息提示，在该接口下还可以配置第二个IP地址
当用户端cisco路由器上用showinterface命令时line和lineprotocal可能出现的几种组合？（）。A、line down；line protocol downB、line down；line protocolC、line up；line protocol downD、line up；line protocol up
Which line from the output of the show ip interface command indicates a layer 1 problem?（）A、Serial0/1 is up, line protocol is downB、Serial0/1 is down, line protocol is downC、Serial0/1 is up, line protocol is upD、Serial0/1 is administratively down, line protocol is down
单选题路由器出现Serial interface-number is up，line protocol is down（DTE）的状态，可能出现的问题不包括（）。A本地或远程路由器配置丢失B线路故障CCSU/DSU故障DLINE未与CSU/DSU联接
单选题当学生A用两台Star—R2624路由器在做路由器广域网口连通实验时误将本端口路由器V.35线缆的插头插倒了。结果发现PING直连的路由器不通，请问此时需要查看路由器的状态应该是（）ASerial 0 is up，line protocol is downBSerial 0 is down，line protocol is downCSerial 0 is down，line protocol is upDSerial 0 is administratively down，line protocol is
多选题当用户端cisco路由器上用showinterface命令时line和lineprotocal可能出现的几种组合？（）。Aline down；line protocol downBline down；line protocolCline up；line protocol downDline up；line protocol up
单选题Router# show interfaces serial 0/1 命令的输出显示了如下内容： Serial0/1 is down， line protocol is down. 线路协议为 down（关闭）的原因最可能是什么（）ASerial0/1 为关闭状态B路由器未连接电缆C远程路由器正在使用 serial 0/0 接口D尚未设置时钟频率
单选题Which line from the output of the show ip interface command indicates a layer 1 problem?（）ASerial0/1 is up, line protocol is downBSerial0/1 is down, line protocol is downCSerial0/1 is up, line protocol is upDSerial0/1 is administratively down, line protocol is down
单选题While logged into a router you manually shut down the serial 0 interface using the "shutdown" interface configuration command. You then issue the "show interface serial 0" command in exec mode. What could you expect the status of the serial 0 interface to be?（）ASerial 0 is up, line protocol is upBSerial 0 is up, line protocol is downCSerial 0 is down, line protocol is downDSerial 0 is down, line protocol is upESerial 0 is administratively down, line protocol is downFSerial 0 is administratively down, line protocol is up