单项选择题
A.3 hours
B.6 months
C.until last year
D.until last commit
E.until the point when the undotablespacewas refreshed
F.until the database is shut down and the memory erased
单项选择题 The operating system filecratabin the Linux platform gets updated whenever you create a new database on the same host machine. What kind of information is stored is stored in this file？（）
单项选择题 You work as a database administrator for Certkiller .com. In your Oracle database10g installation you have set ORACLE_BASE to /u01/app/oracle. Which objective will be achieved by this setting？（）
单项选择题 YouworkasadatabaseadministratorforCertkiller.com.YoufindthatuserswithDBAroleareusingmoreCPUresourcesthanwhatisallocatedintheirprofiles.Whichactionwouldyoutaketoensurethatresourceslimitsareimposedontheseusers？（）