单项选择题
A. /etc/syslog.h
B. /etc/syslog.pid
C. /usr/sbin/syslogd
D. /etc/syslog.conf
单项选择题 Asystemadministratorneedstoreplaceamirroreddisk.Afterperformingtheproperremovalprocessandreplacingthedisk,whichofthefollowingsetofcommandsshouldbeperformedtobringthediskbackintoproduction?（）
单项选择题 Asystemadministratorthinksthatafilesystemmaybefullandthatiswhatcausedthemachinetocrash.Whichcommandwillshowtheadministratoriftheyarecorrect?（）
单项选择题 WhichofthefollowingproceduresbestexplainshowtoenabletheNISnameresolutiontotakeprecedenceoverDNSonasystem-widebasis?（）