单项选择题
The DB_BLOCK_CHECKING initialization parameter is set to OFF. 数据库块检测初始化参数被设定为关 Which block checking would be performed?（）
A.The Oracle database will perform block checking for the index blocks only
B.The Oracle database will not perform block checking for any of the data blocks
C.The Oracle database will perform block checking for the default permanent tablespace only
D.The Oracle database will perform block checking for the data blocks in all user tablespaces
E.The Oracle database will perform block checking for the data blocks in the SYSTEM tablespace only Oracle
相关考题
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单项选择题
AdatabaseisrunninginARCHIVELOGmodeandregularbackupsareperformed.Auserreceivesthefollowingerrormessage .Whichistherecommendedsequenceofoperationsyouneedtoperformforthequerysuccessfully?（）
A.Drop the affected tablespace, re-create the tablespace, restore the datafiles, and the tablespace.
B.Take the affected datafile offline (if not already offline), restore the damaged image of the datafile, and then bring it online.
C.Restart the database in MOUNT mode, restore the damaged datafile, recover the datafile and then open the database with resetlogs.
D.Put the database in RESTRICTED mode, restore all the datafiles in the affected datafile and recover the tablespace, and then put the database in normal operational mode. -
单项选择题
YouperformabackupusingthefollowingBACKUPcommand:RMAN>BACKUPASCOMPRESSEDBACKUPSETDATABASE,Whichstatementistrueofthiscommand?（）
A.A different procedure is required to restore a database from compressed backups
B.The AS COMPRESSED clause of the BACKUP command provided by RMAN is used to create compressed backup sets and image copies.
C.Using this command to create backups minimizes the bandwidth consumed.
D.Using this command to create backups improves the performance of the backup process -
单项选择题
YouareworkingontheAPPDBdatabaseasaDBA.ThedatabasehasadefaultFlashbackDataArchiveDFLA1createdonit.YouissuedthefollowingcommandtodroptheFlashbackArchiveFLA1:DROPFLASHBACKARCHIVEfla1,Whatistheeffectofthiscommand?（）
A.The Flashback Archive FLA1 is dropped only if it is empty.
B.The tablespace having Flashback Archive is dropped.
C.The Flashback Archive FLA1 is dropped after moving the existing data in it to the default Flashback Archive.
D.The Flashback Data Archive and historical data are dropped.
