What is the maximum database block size supported for the Oracle9i database？（）

AsADBA，whichofthefollowingmethodscanyouusetomakeabackupofyourtable？（）

A.Recover Manager （RMAN） utility
B.Import utility
C.Export utility
D.O/S backup command

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Whichofthefollowingparametersmustbespecifiedtodefinethenumberofdispatchersthatneedtobestarted？（）

A.MAX_DISPATCHERS
B.DISPATCHERS
C.MIN_DISPATCHERS
D.SHARED_SERVERS

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