单项选择题
Exhibit， error
You work as a database administrator for Supportcenter.cn. When you try to connect to the database， you get an error （See exhibit）. What could be the possible reason for getting such an error？（）
A.Database is not open
B.Listener is not running
C.Service name is not correct
D.Wrong port number used in URL
E.Usersysdoes have themediaprivilege
相关考题
-
单项选择题
YouworkasadatabaseadministratorforSupportcenter.cn.Yourdatabaseisfunctional.Oneofthediskscontainingamirroredredologmemberhasbadsectorsinit.Youareunabletofixthedamagedfile.Howdoesthelossofaredologmemberaffecttheinstanceofthedatabasethatiscurrentlyrunning？（）
A.The instance would normally abort.
B.The instance would not be affected.
C.The instance would be invalid， so would have to be aborted.
D.The instance would remain open， but the LGWR process would fail.
E.The instance would remain open and would automatically create the missing file -
单项选择题
YouworkasadatabaseadministratorforSupportcenter.cn.Inyourorganization，youhavefourdatabases，SupportCenterDB01，SupportCenterDB02，SupportCenterDB03，andSupportCenterDB04，whicharelocatedinBerlin，Frankfurt，Rammstein，andMunichrespectively，andwhichwerecreatedusingDatabaseConfigurationAssistant（DBCA）.Youwanttoperformadministrativetasksonthesedatabasesthatincludestartupandshutdown，takingregularbackups，andsoon，fromFrankfurtusingOracletools.WhichOraclefilewouldyouenabletoperformthistask？（）
A.Control file
B.Password file
C.Parameter file
D.Online redo log file
E.Listener controller file
F.Server parameter file -
多项选择题
YouworkasadatabaseadministratorforSupportcenter.cn.Youwanttocreateyourdatabasewiththeautomaticundomanagementfeatureenable.Whichtwotasksmustyouperformtoachievethis？（）
A.Set the UNDO_RETENTION parameter to AUTO.
B.Create an initial undo segment in undotablespace.
C.Set the UNDO_RETENTION parameter to 900 or more
D.Set the initialization parameter UNDO_MANAGEMENT to AUTO
E.Set the UNDO_MANAGEMENT parameter to the name of an undotablespace
