单项选择题 Telnetingfromanymachineonthenetworkistaking75seconds.Whichofthefollowingproceduresshouldbecheckedtocorrecttheerror?（）
单项选择题 Whichofthefollowingconclusionsismostappropriatetodrawtodescribewhydushowsfewerblocksusedthandf?（）
单项选择题 Thesysdumpdevcommandcanbeusedtoconfigureremotedumpdevices.WhichofthefollowingconditionsisNOTusedforaremotedumpdeviceconfiguration?（）