单项选择题
A. Reboot the system.
B. Increase the number of ptys.
C. Increase number of licenses.
D. Run df -k to check for full filesystems.
单项选择题 Whatisthedefaultconfigurationfileusedbythesyslogddaemon?（）
单项选择题 Asystemadministratorneedstoreplaceamirroreddisk.Afterperformingtheproperremovalprocessandreplacingthedisk,whichofthefollowingsetofcommandsshouldbeperformedtobringthediskbackintoproduction?（）
单项选择题 Asystemadministratorthinksthatafilesystemmaybefullandthatiswhatcausedthemachinetocrash.Whichcommandwillshowtheadministratoriftheyarecorrect?（）