单选题What RMAN command must you use before you can back up a database using the recovery catalog？（）A create catalogB install databaseC catalog databaseD merge Catalog with databaseE register database
单选题
What RMAN command must you use before you can back up a database using the recovery catalog？（）
A
create catalog
B
install database
C
catalog database
D
merge Catalog with database
E
register database
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解析：
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单选题While working on the database， you receive the following error： 01578： ORACLE data block corrupted （file# 6， block # 54） ORA-01110 ： data file 6： ’u01/oracle/oradata/data1.dbf’ You decide to recover the corrupted data block by using the Block Media Recovery feature. Which option is NOT a disadvantage of using block media recovery？（）A Block Media Recovery must be used with RMAN.B You must perform complete recovery of individual blocks.C You must have a full RMAN backup， not an incremental backup.D You must use the DBVERIFY utility before using the Block Media Recovery feature.
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单选题What RMAN command must you use before you can back up a database using the recovery catalog？（）A create catalogB install databaseC catalog databaseD merge Catalog with databaseE register database
单选题You set the recovery window to seven days and the backup optimization to ON using the CONFIGURE command of Recovery Manager （RMAN）. The most recent backup of the TOOLS tablespace to disk was taken on January 3. The TOOLS tablespace is read/x7fonly. On February 21， when you execute a command to back up all the tablespaces to disk， you find that RMAN backs up the TOOLS tablespace also， even though the contents of the tablespace have not changed after the backup on January 3. Because there are no changes made to the TOOLS tablespace， you decide that the tablespace should not be backed up by RMAN. What can you to do skip backing up the TOOLS tablespace without changing the current backup optimization setting？（）Aconfigure a default device for RMAN backupsBtemporarily disable the retention policy for RMAN backupsCconfigure automatic channel allocation for RMAN backupsDuse the CONFIGURE command to reconfigure the recovery window to 60 days
单选题You set the recovery window to seven days and the backup optimization to ON using the CONFIGURE command of Recovery Manager （RMAN）. The most recent backup of the TOOLStablespace to disk was taken on January 3. The TOOLStablespace is read-only.On February 21， when you execute a command to back up all the tablespaces to disk， you find that RMAN backs up the TOOLS tablespace also， even though the contents of the tablespace have not changed after the backup on January 3. Because there are no changes made to the TOOLStablespace， you decide that the tablespace should not be backed up by RMAN. What can you do to skip backing up the TOOLStablespace without changing the current backup optimization setting？（）A configure a default device for RMAN backupsB temporarily disable the retention policy for RMAN backupsC configure automatic channel allocation for RMAN backupsD use the CONFIGURE command to reconfigure the recovery window to 60 days
单选题You want to put a specific tablespace called MY_DATA in hot backup mode so you can back it up. What command would you use？（）A alter tablespace MY_DATA begin backupB alter tablespace MY_DATA start backupC alter tablespace MY_DATA backup beginD alter MY_DATA begin backupE You cannot back up individual tablespaces
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