单项选择题
What command would be used to restart the mail daemon？（）
A.sendmail -bi B.refresh -s sendmail C.restart -a sendmail D./etc/sendmail.cf -stop /etc/sendmail.cf -start
单项选择题 WhichcommandrestartstheTCP/IPsubsystem？（）
单项选择题 Howwouldasystemadministratorreviewroot’scurrentcronjobsofthefollowing？（）
单项选择题 Whichcronentrywillrun/usr/local/bin/myscriptat0500everySaturdayofthefollowing？（）
