单项选择题
A./etc/.rhosts and $HOME/hosts.equiv
B./etc/hosts.equiv and $HOME/.rhosts
C./etc/rhosts.equiv and $HOST/.rhosts
D./etc/hosts.equiv and $HOME/.hosts.equiv
单项选择题 WhichcommandwillpurgetheerrorlogofallrecordedoccurrencesofagivenSRN？（）
单项选择题 Whatistheobjectiveofthesuperstrictoptionthatcanbeusedwhencreatingmirrors？（）
单项选择题 Anadministratorwantstotesttheperformanceofanapplicationatdifferentmemorysizes.Whatisthemosteffectivewaytoperformthetestandcollectstatisticalinformationforeachtest？（）