A. Date formatB. Decimal characterC. Group separatorD. ……

单项选择题YounoticethatajobinachainhasnotcompletedonanonconstrainedRACdatabase.Whichofthesearevalidreasonswhythatmightoccur？（）

A. The job priority is 1 and the resource consumer group CPU emphasis allocation is a low percentage.
B. The job affinity is to a service and one node in that service is unavailable.
C. The job affinity is to an instance and that instance is unavailable.
D. There is no service affinity.
E. None of the above.

单项选择题Whichofthefollowingarenotdisabledbydefault？（）

A. Jobs
B. Chains
C. Windows
D. Window groups
E. Schedule

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.