单项选择题
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.
多项选择题 YourdatabaseisrunningintheARCHIVELOGmode.YouhaveconfiguredRMANforbackupandrecoveryoperations.YouexecutethefollowingcommandfromtheRMANprompt： RMAN>CONFIGURECONTROLFILEAUTOBACKUPON； Afterexecutingthiscommand，inwhichofthefollowingcaseswillRMANmakeanauto-backupofthecontrolfile？（）
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？（）
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？ （）
