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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

题目

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.

相似考题

1.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.

2.Whichviewprovidesinformationonthebackupstatusofthedatafilesinthedatabase?()A.V$BACKUPB.V$BACKUP_STATUSC.V$BACKUP_DATAFILED.V$DATAFILE_BACKUPE.V$TABLESPCE_BACKUP

3.YouaremanaginganOracleDatabase11gdatabasewiththefollowingbackupstrategy：1）OnSunday，anincrementallevel0tapebackupisperformed.2）MondaythroughSaturday，acumulativeincrementallevel1tapebackupisperformed.Whichtwostatementsaretrueregardingthebackupsperformed（）A.Thebackupperformedinstep1backsupallblocksthathaveeverbeeninuseinthedatabase.B.Thebackupperformedinstep2copiesalltheblockschangedsincethemostrecentlevel0backup.C.Thebackupperformedinstep1backsupalltheblockschangedsincethemostrecentlevel1backup.D.Thebackupperformedinstep2backsupallblocksthathavechangedsincethemostrecentincrementalbackupatlevel1

4.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.

更多“Examine the following command used to perform incremental level 0 backup:RMAN> BACKUP I ”相关问题

  • 第1题：

    Youperformdifferentialincrementallevel1backupsofyourdatabaseoneachworkingdayandlevel0backuponSundays,totape.Whichtwostatementsaretrueaboutdifferentialincrementalbackups()

    A.ThebackupperformedonSundayscontainsalltheblocksthathaveeverbeenusedinthedatabase.

    B.ThebackupperformedonSundayscontainsalltheblocksthathavechangedsincethelastlevel1backup.

    C.Thebackupperformedoneachworkingdaycontainsalltheblocksthathavechangedsincethelastlevel0 backup.

    D.ThebackupperformedonMondaycontainsalltheblocksthathavechangedsincethelevel0backup，and everyotherworkingdaycontainsalltheblocksthathavechangedsincethelevel1backup


    参考答案：A, D

  • 第2题：

    YouaremanaginganOracleDatabase11gdatabasewiththisbackupstrategy：-EverySundaynight，level0backupisperformed.-OnMondaynightandsubsequentdays，level1incrementalbackupisperformed.Thebackupsarenotcumulativeincremental.WhichstatementaboutMonday’sbackupistrue（）

    A.Thebackupcontainsalltheusedblocks.

    B.Thebackupcontainsalltheusedandunusedblocks.

    C.Thebackupcontainsblocksthathavechangedsincethelastlevel0backup.

    D.Thebackupcontainsblocksthathavechangedsincethelastlevel1backuptakenlastweek.


    参考答案：C

  • 第3题：

    YouissuethisRMANcommand：RMAN>createscriptLevel0Backup{backupincrementallevel0format‘/u01/db01/backup/%d_%_Sp’fileperset5（databaseincludecurrentcontrolfile）；sql‘alterdatabasearchivelogcurrent’；}WhichthreestatementsaretrueabouttheLevel0Backupscriptyoujustcreated？（）

    A.Thescriptisstoredonlyinthecontrolfile.

    B.Thescriptisstoredonlyintherecovercatalog.

    C.ThescriptcanbeexecutedonlybyusingtheRMANRUNcommand.

    D.ThecommandsofthescriptcanbedisplayedwiththeLISTcommand.

    E.ThecommandsofthescriptcanbedisplayedwiththePRINTcommand.

    F.ThecommandsofthescriptcanbedisplayedwiththeREPORTcommand.


    参考答案：B, C, E

  • 第4题：

    YouaremanaginganOracleDatabase11gdatabasewiththefollowingbackupstrategy：1.OnSunday，anincrementallevel0tapebackupisperformed.2.MondaythroughSaturday，acumulativeincrementallevel1tapebackupisperformed.Whichtwostatementsaretrueregardingthebackupsperformed（）

    A.Thebackupperformedinstep1backsupallblocksthathaveeverbeeninuseinthedatabase.

    B.Thebackupperformedinstep2copiesalltheblockschangedsincethemostrecentlevel0backup.

    C.Thebackupperformedinstep1backsupalltheblockschangedsincethemostrecentlevel1backup.

    D.Thebackupperformedinstep2backsupallblocksthathavechangedsincethemostrecentincrementalbackupatlevel1.


    参考答案：A, B

  • 第5题：

    Examinethissyntaxwhichallocateschannelsduringaparallelimagecopy：RMAN>CONFIGUREDEVICETYPEdiskparallelism4：2>COPY3>datafile1TO‘/BACKUP/datafile1.dbf’，4>datafile2TO‘/BACKUP/datafile2.dbf’，5>datafile3TO‘/BACKUP/datafile3.dbf；RMAN>COPY2>datafile4TO‘/BACKUP/datafile4.dbf’；Howmanychannelsareused？（）

    A.0

    B.1

    C.3

    D.4


    参考答案：D

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