单项选择题

A. Oracle will automatically take the datafile out of h……

Another DBA issues a shutdown abort command on a database on which you were running an online backup. What will happen when you try to restart the database？（）

A. Oracle will automatically take the datafile out of hot backup mode，generate a warning message，and then open the database.
B. Oracle will automatically take the datafile out of hot backup mode and then open the database.
C. Oracle will generate an error when trying to open the database，indicating that a datafile is in hot backup mode.You will need to correct this error before you can open the database.
D. The database will open with the file in hot backup mode. You can restart the backup at any time.
E. The datafile in hot backup mode will be corrupted and you will have to recover it.

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单项选择题Whichviewprovidesinformationonthebackupstatusofthedatafilesinthedatabase？（）

A. V$BACKUP
B. V$BACKUP_STATUS
C. V$BACKUP_DATAFILE
D. V$DATAFILE_BACKUP
E. V$TABLESPCE_BACKUP

单项选择题What will be the result of the following configuration？（） Log_archive_dest_1=location=c： oracle arch mydb Log_archive_dest_2=location=z： oracle arch mydb

A. An error will occur during database startup because the second parameter is not valid.
B. An error will occur during database startup since you are trying to create archived redo logs in two different locations.
C. Archived redo logs will be created in two different locations by the ARCH process.
D. Archived redo logs will be created in two different locations by the LGWR process.
E. Neither parameter setting is valid， so the database will not start up.

单项选择题ArchivedredologscanbecopiedtomorethanonedestinationbyOracle.（）

A. True
B. False

单项选择题Whichisnotavalidwayofbackingupacontrolfile？（）

A. Backing up the control file to trace
B. Copying the existing control file of the database to the backup location during a hot backup
C. Copying the existing control file of the database to the backup location during a cold backup
D. Creating a backup control file
E. Using the create controlfile command

单项选择题EverySundaytheUnixsystemadministratorhasajobthatexecutesafullbackupoftheentireUnixsystemyourdatabaseison.Isthisbackupusableforbackupandrecoveryofyourdatabase？（）

A. Yes， if the database is in ARCHIVELOG mode
B. Yes， if the database is in NOARCHIVELOG mode
C. No， the backup is not usable in any way
D. Only if the ENABLE_ONLINE_BACKUP parameter is set to TRUE