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连接终端和数字专线的设备CSU/DSU被集成在路由器的( )端口中。
A.RJ-45端口
B.同步串口
C.AUI端口
D.异步串口
B.同步串口
C.AUI端口
D.异步串口
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单选题csu/dsu和modem的不同点是什么()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
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单选题What is the difference between a CSU/DSU and a modem?()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 lineB
A CSU/DSU converts analog signals from a router to a phone line; a modem converts digital signals from a router to a leased lineC
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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
考题
单选题What is the difference between a CSU/DSU and a modem?()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.
考题
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C
CSU/DSU故障D
LINE未与CSU/DSU联接
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