单项选择题
A.Online
B.Pending online
C.Offline
D.Stale
单项选择题 WhendeterminingthenumberofUNDOsegmentsinadatabase,whichofthefollowingchoicesidentifiesafactortoconsider?（）
单项选择题 Youaretryingtodeterminehowmanydisksortsarehappeningonthedatabaserightnow.Whichofthefollowingdictionarytableswouldyouusetofindthatinformation?（）
单项选择题 Todeterminethespaceallocatedfortemporarysegments,theDBAcanaccesswhichofthefollowingviews?（）