You performed the RMAN database backup having a backupset key number 231 with the KEEP FOREVER option. After some days, you want to change the status of the database backup and you issued the following command:RMAN>CHANGE BACKUPSET 231 NOKEEP;What is the

题目

You performed the RMAN database backup having a backupset key number 231 with the KEEP FOREVER option. After some days, you want to change the status of the database backup and you issued the following command:RMAN>CHANGE BACKUPSET 231 NOKEEP;What is the implication of this command?（）

A. The backup is deleted.

B. The backup is marked unavailable.

C. The backup overrides the backup retention policy.

D. the backup becomes eligible for deletion according to the existing retention policy

相似考题

1.Files can be lost or destroyed accidentally. Keep(74) copies of all data on removable storage media.A．moveB．pasteC．backdownD．backup

2.You are using the control file to maintain information about the database backups that are being performed by Recovery Manager (RMAN). Identify two scenarios is which you must have a recovery catalog.（）A. To store the backup information of multiple databaseB. To restrict the amount of space that is used by the backupsC. To maintain a backup for a certain time is set by the CONTROL_FILE_RECORD_KEEP_TIME parameter.D. To list the data files that were in a target database at a given time by using the AT option of REPORT SCHEMA command.

3.Examine the following command used to perform incremental level 0 backup:RMAN> BACKUP INCREMENTAL LEVEL 0 DATABASE;To enable the block change tracking, after the incremental level 0 backup you issued the following command:SQL> ALTER DATABASE ENABLE BLOCK CHANGE TRACKING USINGFILE ‘/mydir/rman_change_track.f‘;To perform incremental level 1 cumulative backup, you issued the following command:RMAN> BACKUP INCREMENTAL LEVEL 1 CUMULATIVE DATABASE;Which two statements are true in the above situation?（）A. The block change tracking data will be used only from the next incremental 0 backup.B. The incremental backup will use change tracking data for accomplishing the backup.C. The incremental backup will not use change tracking data for accomplishing the backup.D. The block track file will scan all the blocks and create bitmap for all the blocks backed up in the level 0 backup.

4.After you have restored and recovered a database to a new host by using a previously performed Recovery Manager (RMAN) backup, which is the best option you would consider for the new database?()A. Opening the database in RESTRICTED modeB. Opening the database with the RESETLOGS optionC. Setting a new DBID for the newly restored databaseD. Restoring the server parameter file (SPFILE) to the new host

参考答案和解析
参考答案：D
更多“You performed the RMAN database backup having a backupset key number 231 with the KEEP FOR ”相关问题

  • 第1题：

    You enable block change tracking. You issue the following command: BACKUP INCREMENTAL LEVEL 0 DATABASE;The next day, you issue the following command:BACKUP INCREMENTAL LEVEL 1 CUMULATIVE DATABASE;Which statement about the use of the change tracking file is true?（）

    A. RMAN reads the block change tracking file only when it performs the incremental level 0 backup.

    B. RMAN reads the block change tracking file when it performs both incremental backups.

    C. RMAN reads the block change tracking file only when it performs the incremental level 1 backup.

    D. RMAN does not read the block change tracking file when it performs either incremental backup.


    参考答案：C

  • 第2题：

    Youexecutedthefollowingcode:BACKUPVALIDATEDATABASE;BLOCKRECOVERCORRUPTIONLIST;Whatwillbetheresultofexecutingtheabovecode?()

    A.ThecodewillrunabackupvalidationtopopulatetheV$BACKUP_CORRUPTIONviewandrepaircorruptblocks，ifany，recordedintheview.

    B.ThecodewillrunabackupvalidatetopopulatetheV$COPY_CORRUPTIONviewandthenrepairanycorruptblocksrecordedintheview.

    C.ThecodewillrunsabackupvalidatetopopulatetheV$DATABASE_BLOCK_CORRUPTIONviewandthenrepaircorruptblocks，ifany，recordedintheview.

    D.ThecodewillrunabackupvalidatetopopulatetheRC_BACKUP_CORRUPTIONviewandthenrepaircorruptblocks，ifany，recordedintheview.


    参考答案：C

  • 第3题：

    You performed an incremental level 0 backup of a database:RMAN > BACKUP INCREMENTAL LEVEL 0 DATABASE;To enable block change tracking after the incremental level 0 backup, you issued this command:SQL > ALTER DATABASE ENABLE BLOCK CHANGE TRACKING USING FILE ‘ /mydir/rman_change_track.f’;To perform an incremental level 1 cumulative backup, you issued this command:RMAN> BACKUP INCREMENTAL LEVEL 1 CUMULATIVE DATABASE;Which three statements are true?（）

    A. Backup change tracking will sometimes reduce I/O performed during cumulative incremental backups.

    B. The change tracking file must always be backed up when you perform a full database backup.

    C. Block change tracking will always reduce I/O performed during cumulative incremental backups.

    D. More than one database block may be read by an incremental backup for a change made to a single block.

    E. The incremental level 1 backup that immediately follows the enabling of block change tracking will not read the change tracking file to discover changed blocks.


    参考答案：B, C, E

  • 第4题：

    Examinethefollowingcommandusedtoperformincrementallevel0backup：RMAN>BACKUPINCREMENTALLEVEL0DATABASE；Toenabletheblockchangetracking，aftertheincrementallevel0backupyouissuedthefollowingcommand：SQL>ALTERDATABASEENABLEBLOCKCHANGETRACKINGUSINGFILE’/mydir/rman_change_track.f’；Toperformincrementallevel1cumulativebackup，youissuedthefollowingcommand：RMAN>BACKUPINCREMENTALLEVEL1CUMULATIVEDATABASE；Whichtwostatementsaretrueintheabovesituation？（）

    A.Theblockchangetrackingdatawillbeusedonlyfromthenextincremental0backup.

    B.Theincrementalbackupwillusechangetrackingdataforaccomplishingthebackup.

    C.Theincrementalbackupwillnotusechangetrackingdataforaccomplishingthebackup.

    D.Theblocktrackfilewillscanalltheblocksandcreatebitmapforalltheblocksbackedupinthelevel0backup.


    参考答案：A, C

  • 第5题：

    YouareusingtheBlockMediaRecoveryfeaturetorecovertheblocksthataremarkedcorruptsincethelastbackup.Whichviewwillyouquerytodisplayinformationaboutthedatablocksthataremarkedcorruptsincethelastbackup?()

    A.V$BACKUP_CORRUPTION

    B.V$COPY_CORRUPTION

    C.V$DATABASE_BLOCK_CORRUPTION

    D.RC_BACKUP_CORRUPTION


    参考答案：C

  • 第6题：

    Files can be lost or destroyed accidentally. Keep(72)copies of all data on removable storage media。

    A．back

    B．black

    C．backdown

    D．backup


    正确答案：D
    解析：文件有时可能会丢失或损坏，请把所有数据复制到可移动的存储设备中。

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