单项选择题
Which of the following commands should be used to display a system routing table?（）
A. route B. netstat C. iptrace D. traceroute
单项选择题 Whichofthefollowingcommandsshouldbeusedtoassurethatadumpcanbeforcedusingtheresetbuttononasystemwithoutakeyswitch?（）
单项选择题 WhichofthefollowingisTRUEabouttheping-fcommand?（）
单项选择题 Whichofthefollowingcommandsshouldbeusedtodetermineifaremoteprintqueueisdown?（）
