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()。
第1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?()
A. Serial 0 is up, line protocol is up
B. Serial 0 is up, line protocol is down
C. Serial 0 is down, line protocol is down
D. Serial 0 is down, line protocol is up
E. Serial 0 is administratively down, line protocol is down
F. Serial 0 is administratively down, line protocol is up
第2题:
A. A CSU/DSU converts analog signals from a router to a leased line; a modem converts analog signals from a router to a leased line.
B. A CSU/DSU converts analog signals from a router to a phone line; a modem converts digital signals from a router to a leased line.
C. A CSU/DSU converts digital signals from a router to a phone line; a modem converts analog signals from a router to a phone line.
D. A CSU/DSU converts digital signals from a router to a leased line; a modem converts digital signals from a router to a phone line.
第3题:
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
第4题:
A.line down;line protocol down
B.line down;line protocol
C.line up;line protocol down
D.line up;line protocol up
第5题:
A.CSU/DSU用于端接本地数字环路
B.调制解调器端接本地数字环路
C.一个CSU/DSU终止模拟本地环路
D.调制解调器终止模拟本地环路
E.路由器通常被视为DTE设备
F.路由器通常被视为DCE设备
第6题:
A. Serial0/1 is up, line protocol is down
B. Serial0/1 is down, line protocol is down
C. Serial0/1 is up, line protocol is up
D. Serial0/1 is administratively down, line protocol is down
第7题:
A.一个CSU/DSU转换成模拟信号,从路由器到租用线路;一个调制解调器从一个路由器到一个租用线路转换的模拟信号。
B.一个CSU/DSU转换成模拟信号,从路由器到电话线;一个调制解调器从一个路由器到一个租用线路将数字信号转换。
C.一个CSU/DSU转换从路由器到电话线的数字信号;一个调制解调器从一个路由器到一个电话线路转换的模拟信号。
D.一个CSU/DSU转换从路由器到租用线路的数字信号;一个调制解调器从一个路由器到一个电话线路将数字信号转换。
第8题:
CSU/DSU属于( )设备。
A.DTE B.DCE C.CO D.CPE
第9题:
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
第10题: