单项选择题
There is a problem starting a telnet session on a system. Which of the following daemons should be checked?（）
A.tftpd B.inetd C.getty D.rlogind
单项选择题 Whichofthefollowingcommandsisusedtoclearallentriesfromthesystemerrorlog?（）
单项选择题 Whichfiledoestheerrptcommandpullitsinformationfrom?（）
单项选择题 Duringaboot,whichofthefollowingproceduresismostlikelytopresentamenuthatpromptstheusertocopyadump?（）
