Which of the following are not disabled by default？（）

单项选择题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

多项选择题InaDatabaseReplayworkloadcapture，whatclientrequestinformationisgathered？（）

A. SQL text
B. Shared server requests （Oracle MTS）
C. Bind variable values
D. Information about transactions
E. Remote DESCRIBE and COMMIT operations

单项选择题Adevelopercallsandreportsthatheaccidentallydroppedanimportantlookuptablefromaproductiondatabase.Heneedsthetabletoberecovered.Whatactionwouldyoutake？（）

A. Initiate an incomplete recovery operation using RMAN.
B. Copy the table from a development database.
C. Advise the user to rekey the data.
D. Perform a Flashback Drop operation.
E. Perform a Flashback Recovery operation.

单项选择题Auserperformsanupdateonatable.Shortlyaftercommittingthetransaction，theyrealizethattheyhadanerrorintheirWHEREclausecausingthewrongrowstobeupdated.WhichFlashbackoptionwouldallowyoutoundothistransactionandrestorethetabletoitspreviousstate？（）

A. Flashback Drop
B. Flashback Query
C. Flashback Versions Query
D. Flashback Transaction Query
E. Flashback Table

单项选择题WhatRMANcommandisusedtoexecuteatablespacepoint-in-timerecovery？（）

A. recover
B. duplicate
C. restore
D. copy
E. None of the above