单项选择题
You issued the RMAN>SHOW ALL； command. The output of this command is as follows：
After analyzing the output， which conclusion will you draw？（）
A. The current control file is not automatically backed up every time you perform a backup.
B. The backups save space on the storage media.
C. While performing backups across a network， the network bandwidth is reduced.
D. The backups consist of backup pieces.
相关考题
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多项选择题
YourdatabaseisrunningintheARCHIVELOGmode.YouhaveconfiguredRMANforbackupandrecoveryoperations.YouexecutethefollowingcommandfromtheRMANprompt： RMAN>CONFIGURECONTROLFILEAUTOBACKUPON； Afterexecutingthiscommand，inwhichofthefollowingcaseswillRMANmakeanauto-backupofthecontrolfile？（）
A. when you change the name of a datafile
B. when you drop a table from the database
C. when you take an export of the database
D. when you back up the database using OS utilities
E. when you issue an ALTER SYSTEM SWITCH LOGFILE statement
F. when you issue a BACKUP command from inside the RMAN run block -
单项选择题
The size of the largest datafile， data1.dbf， in your database is 30MB. You issued the following command： RMAN>CONFIGURE MAXSETSIZE 10MB； What will be the impact of the above setting？（）
A. While performing the backup of the datafile，data1.dbf，one backup set is created.
B. While performing the backup of the datafile，data1.dbf，two backup sets are created.
C. While performing the backup of the datafile，data1.dbf，three backup sets are created.
D. While performing the backup of the datafile，data1.dbf，the command for performing a backup of the datafile，data1.dbf，will fail. -
单项选择题
You are using Recovery Manager （RMAN） for backup and recovery operations. Your backup and recovery policy is such that you are performing full database backup every Tuesday and Friday. You configure RMAN using the following command： RMAN>CONFIGURE RETENTION POLICY TO RECOVERY WINDOW OF 4 DAYS； All backup and archived redo logs generated during the current week are as follows： Which of the following files will be listed when issuing the REPORT OBSOLETE command on Sunday？ （）
A. the archived redo log with the log sequence 520
B. the backup files from the full database backup performed on Tuesday
C. the archived redo log with the log sequence 520 and the backup files from the full database backup performed on Tuesday
D. archived redo logs with the log sequences 520， 521， 522 and the backup files from the full database backup performed on Tuesday
