单项选择题
A.Nothing happens
B.Oracle will automatically switch redo logs when detected
C.Oracle eventually won't allow new records to be added to the database
D.The instance crashes
单项选择题 YouareanalyzinghowOracleprocessesuserstatements.SQLandPL/SQLparseinformationisstoredinwhichofthefollowingdatabasememoryareas?（）
单项选择题 Youaredesigningthephysicaldatabaselayoutonyourhostmachine.WhatistherelationshipbetweentablespacesanddatafilesintheOracledatabase?（）
单项选择题 Duringregulardatabaseoperation,whichbackgroundprocesswilltakesmallerblocksoffreespaceinadictionary-managedtablespaceandmovethingsaroundtomakebiggerpiecesoffreespace?（）