单项选择题
Twenty database users are connected to your database. Five of the users are running long queries involving sort operations. The TEMP tablespace is the default temporary tablespace for your database. You are performing offline tablespace backups of individual tablespaces and erroneously execute the following statement:
SQL>ALTER TABLSPACE temp OFFLINE NORMAL;
What is the result of this statement?()
A. The TEMP tablespace is taken offline. The users using the TEMP tablespace for sorting are disconnected after their queries complete.
B. The TEMP tablespace is taken offline. The users using the TEMP tablespace for sorting are disconnected and must re-execute their queries.
C. The TEMP tablespace is taken offline. The users using the TEMP tablespace for sorting are not disconnected, but these users must re-execute their queries.
D. The TEMP tablespace is not taken offline. The users using the TEMP tablespace for sorting are not disconnected, and their queries execute successfully.
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You issue the following command on the RMAN prompt. RMAN> REPORT NEED BACKUP DAYS = 5 DATABASE; Which statement is true about executing this command?()
A. It will display a list of files that need incremental backup.
B. It will display a list of files that need backup after five days.
C. It will display a list of files that were backed up in the last five days.
D. It will display a list of files that have not been backed up in the last five days.
E. It will apply the current retention policy to determine the files that need to be backed up. -
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YouaremaintainingyourdatabaseinOracle10g.Whileperforminganincrementalbackupofthedatabase,youwanttobackuponlythoseblocksthathavechangedsincethelastbackup.Whichfilewillyoucreatetoincreasetheperformanceofthebackupoperationwhileperformingtheincrementalbackupofthedatabase?()
A. redo log files
B. password file
C. control file
D. change tracking file -
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YouaremaintainingyourdatabaseinOracle10g.Youarerequiredtoviewthelistoffilesthathavenotbeenbackedupforthelastsevendays.WhichRMANcommandwillyouuse?()
A. LIST command
B. CROSSCHECK command
C. REPORT command
D. SHOW command
