共找到 450 与使用命令 相关的结果，耗时36 ms
A.Switch#B.Switch（config）#C.Switch（config-if）#D.Switch（config-line）#
A.ifconfigB.netstat–anB.msconfigD.regedit
A.Router（config）#server192.168.2.110B.Router（config）#ntp serverC.Router（config）#master192.168.2.110D.Router（config）#ntp master
A.IP HELPER-ADDRESSB.ip addressC.ip forward-protocolD.A and C only
A.unknown hostB.Destination host unreachableC.NO answerD.timed out
A.-s countB.-n countC.-w countD.-r count
A.NO answerB.timed outC.unknown hostD.Destination host unreachable
A.-s timeoutB.-n timeoutC.-w timeoutD.-r timeout
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