TheDBAhaschosentomanageSGAandPGAmemoryseparatelyinanOLTPdatabasebecauseofhisuniqueknowledg

TheDBAhaschosentomanageSGAandPGAmemoryseparatelyinanOLTPdatabasebecauseofhisuniqueknowledgeoftheapplication.WhichofthesearegoodstartingpointstousewhenconfiguringthemaximumvaluesforSGAandPGA，basedontheamountofmemoryavailableonthesystem？（）

A、20%SGA 80%PGA

B、25%SGA 75%PGA

C、50%SGA 50%PGA

D、75%SGA 25%PGA

E、80%SGA 20%PGA