单选题If a backup is expired， which of the following is true？（）AIt can never be used for a restore/recover operation.BOracle will remove the backup set pieces from the flash recovery area.CThe backup has been used at least once to restore and recover the dat

题目
单选题
If a backup is expired， which of the following is true？（）
A

 It can never be used for a restore/recover operation.

B

 Oracle will remove the backup set pieces from the flash recovery area.

C

 The backup has been used at least once to restore and recover the database.

D

 The backup is no longer valid because of a resetlogs operation.

E

 The physical backup set pieces are missing from the media.

相似考题

1.For an incomplete recovery， which four backup types can be used by Recovery Manager （RMAN） to restore data files？ （）A、RMAN image copiesB、RMAN database backupsC、RMAN tablespace backupsD、user­managed backups placed in the flash recovery areaE、user­managed backups that have been cataloged with RMANF、user­managed data file backups for which the full path name is specified

2. A System p administrator is attempting to restore some files from a backup tape. The restore failed. The system administrator suspects the block size of the tape drive is incorrect.  Which of the following commands can be used to determine the block size of the backup tape （）A、ddB、tarC、cpioD、restore

3.A system administrator is attempting to restore some files from a backup tape. The restore failed. The system administrator suspects the block size of the tape drive is incorrect. Which of the following commands can be used to determine the block size of the backup tape？（）A、ddB、tarC、cpioD、restore

4.Which of the following commands is used to restore the VIO server from a backup image？（）A、ddB、tarC、restoreD、installios

参考答案和解析
正确答案： B
解析： 暂无解析
更多“单选题If a backup is expired， which of the following is true？（）A  It can never be used for a restore/recover operation.B  Oracle will remove the backup set pieces from the flash recovery area.C  The backup has been used at least once to restore and recover t”相关问题

  • 第1题：

    What does it mean if a backup is expired？（）  

    • A、 The backup set has exceeded the retention criteria set in RMAN and is eligible for removal. 
    • B、 The backup set has one or more invalid blocks in it and is not usable for recovery.
    • C、 The backup set contains one or more tablespaces no longer in the database.
    • D、 The backup set contains one or more missing backup set pieces.
    • E、 The backup set is from a previous version of RMAN and was not upgraded.

    正确答案:D

  • 第2题：

    Why would you run the delete obsolete command？（）  

    • A、 To remove missing backup set pieces physically from disk
    • B、 To remove metadata related to backup set pieces in the control file and the recovery catalog
    • C、 To mark as deleted records in the control file and the recovery catalog associated with obsolete backup sets
    • D、 To delete backup set pieces associated with backups that are no longer needed due to retention criteria
    • E、 To remove old versions of RMAN backups

    正确答案:C,D

  • 第3题：

    Which step is required for recover from an instance failure？ （）

    • A、Start up only.
    • B、Restore needed data files， then start up.
    • C、Complete restore from backup， then start up.
    • D、Perform point in time recovery， then start up.

    正确答案:A

  • 第4题：

    Which of the following RMAN structures can data from a datafile span？（）

    • A、 RMAN backup-set pieces spanning backup sets
    • B、 RMAN backup-set pieces within a given backup set
    • C、 RMAN backups
    • D、 RMAN channels
    • E、 None of the above

    正确答案:B

  • 第5题：

    You lost the PRODSTD tablespace， which was read/write. The tablespace was read-only when the last backup was performed. How would you recover the tablespace？（）

    • A、 restore the tablespace from the backup； there is no need to apply the redo information
    • B、 restore the full database to recover the data up to the point when you performed the backup
    • C、 restore the tablespace from the backup and then perform a recovery using the backup control file
    • D、 restore the tablespace from the backup and then recover the tablespace； all the redo information from the point when the tablespace was made read/write is applied

    正确答案:D

  • 第6题：

    单选题
    Which of the following commands is used to restore the VIO server from a backup image？（）
    A

    dd

    B

    tar

    C

    restore

    D

    installios


    正确答案： C
    解析： 暂无解析

  • 第7题：

    单选题
    Every Sunday， consistent backups are performed on your database. Because of a user error， you performed an incomplete recovery on Tuesday and opened the database with the RESETLOGS option. A user error occurs again on Thursday， which necessitates an incomplete recovery. Sunday’s backup is the most recent backup available.What would you do in this scenario？（）
    A

     recovery cannot be performed because a backup was not performed after the last incomplete recovery

    B

     restore all the files from Sunday’s backup， and then recover up to the point in time when the RESETLOGS operation was performed on Tuesday

    C

     restore all the files from Sunday’s backup， and open the database to reset the database to the point in time when the backup was performed on Sunday

    D

     restore all the files from Sunday’s backup， and then perform an incomplete recovery up to the point in time when the user error occurred on Thursday


    正确答案： A
    解析： 暂无解析

  • 第8题：

    单选题
    Your developers have asked you to restore the development database， which is in NOARCHIVELOG mode， back to last Tuesday the 20th. Your last backup is from Monday the 19th. What do you do？（）
    A

     Restore the 19ths backup， restore all archived redo logs， recover the database to the 20th，and open the database.

    B

     Tell them that their request cannot be met with the current backup strategy.

    C

     Restore the 19ths backup， apply the online redo logs，and open the database.

    D

     Switch the database into ARCHIVELOG mode，restore the 19th’s backup，restore all archived redo  logs，and recover the database to the 20th.

    E

     Use the recover database command to roll back the database from today to the 19th of the month.


    正确答案： E
    解析： 暂无解析

  • 第9题：

    单选题
    A system administrator is attempting to restore some files from a backup tape. The restore failed. The system administrator suspects the block size of the tape drive is incorrect. Which of the following commands can be used to determine the block size of the backup tape？（）
    A

    dd

    B

    tar

    C

    cpio

    D

    restore


    正确答案： A
    解析： 暂无解析

  • 第10题：

    单选题
    What does it mean if a backup is expired？（）
    A

     The backup set has exceeded the retention criteria set in RMAN and is eligible for removal. 

    B

     The backup set has one or more invalid blocks in it and is not usable for recovery.

    C

     The backup set contains one or more tablespaces no longer in the database.

    D

     The backup set contains one or more missing backup set pieces.

    E

     The backup set is from a previous version of RMAN and was not upgraded.


    正确答案： E
    解析： 暂无解析

  • 第11题：

    单选题
    You need to ensure that you can recover system configuration and data if your computer hard disk fails.  What should you do？ （）
    A

    Create a system restore point.

    B

    Create a backup of all file categories.

    C

    Create a Complete PC Backup and Restore image.

    D

    Perform an Automated System Recovery （ASR） backup.


    正确答案： C
    解析： 暂无解析

  • 第12题：

    单选题
    If a backup is expired， which of the following is true？（）
    A

     It can never be used for a restore/recover operation.

    B

     Oracle will remove the backup set pieces from the flash recovery area.

    C

     The backup has been used at least once to restore and recover the database.

    D

     The backup is no longer valid because of a resetlogs operation.

    E

     The physical backup set pieces are missing from the media.


    正确答案： E
    解析： 暂无解析

  • 第13题：

    Every Sunday， consistent backups are performed on your database. Because of a user error， you performed an incomplete recovery on Tuesday and opened the database with the RESETLOGS option. A user error occurs again on Thursday， which necessitates an incomplete recovery. Sunday’s backup is the most recent backup available. What would you do in this scenario？（）

    • A、recovery cannot be performed because a backup was not performed after the last incomplete recovery
    • B、restore all the files from Sunday’s backup， and then perform an incomplete recovery up to the point in time when the user error occurred on Thursday
    • C、restore all the files from Sunday’s backup， and then recover up to the point in time when the RESETLOGS operation was performed on Tuesday
    • D、restore all the files from Sunday’s backup， and open the database to reset the database to the point in time when the backup was performed on Sunday

    正确答案:B

  • 第14题：

    If a backup is expired， which of the following is true？（）  

    • A、 It can never be used for a restore/recover operation.
    • B、 Oracle will remove the backup set pieces from the flash recovery area.
    • C、 The backup has been used at least once to restore and recover the database.
    • D、 The backup is no longer valid because of a resetlogs operation.
    • E、 The physical backup set pieces are missing from the media.

    正确答案:E

  • 第15题：

    You have lost all your RMAN backup set pieces due to a disk failure. Unfortunately， you have an automated cross-check script that also does a delete expired backupset command. You have restored all the backup set pieces from tape.  What command would you use to get those backup set pieces registered in the recovery catalog and the control file of the database again？（）  

    • A、 register database
    • B、 recover catalog
    • C、 load backupset
    • D、 synch metadata
    • E、 catalog start with

    正确答案:E

  • 第16题：

    You lost the PRODSTD tablespace， which was read/write. The tablespace was read/x7fonly when the last backup was performed. How would you recover the tablespace？（）

    • A、restore the tablespace from the backup; there is no need to apply the redo information 
    • B、restore the full database to recover the data up to the point when you performed the backup 
    • C、restore the tablespace from the backup， and then perform a recovery using the backup control file
    • D、restore the tablespace from the backup， and then recover the tablespace; all the redo information from the point when the tablespace was made read/write is applied

    正确答案:D

  • 第17题：

    Your developers have asked you to restore the development database， which is in NOARCHIVELOG mode， back to last Tuesday the 20th. Your last backup is from Monday the 19th. What do you do？（）

    • A、 Restore the 19ths backup， restore all archived redo logs， recover the database to the 20th，and open the database.
    • B、 Tell them that their request cannot be met with the current backup strategy.
    • C、 Restore the 19ths backup， apply the online redo logs，and open the database.
    • D、 Switch the database into ARCHIVELOG mode，restore the 19th’s backup，restore all archived redo  logs，and recover the database to the 20th.
    • E、 Use the recover database command to roll back the database from today to the 19th of the month.

    正确答案:B

  • 第18题：

    单选题
    You run the following commands：   RMAN> list expired backup； RMAN> delete expired backup；   What will happen to the backup set pieces associated with the backups that appear in the list expired backup command？（）
    A

     They will be renamed.

    B

     Nothing will happen to them. The backup set pieces do not exist.

    C

     They will be deleted immediately since they are not in the flash recovery area.

    D

     You will need to manually remove the physical files listed in the output of the commands.

    E

     They will become hidden files and removed 10 days later.


    正确答案： B
    解析： 暂无解析

  • 第19题：

    单选题
    A System p administrator is attempting to restore some files from a backup tape. The restore failed. The system administrator suspects the block size of the tape drive is incorrect.  Which of the following commands can be used to determine the block size of the backup tape （）
    A

    dd

    B

    tar

    C

    cpio

    D

    restore


    正确答案： D
    解析： 暂无解析

  • 第20题：

    单选题
    Due to operational commitments， a system has a very short backup window during the week， but is not used from Saturday morning through Sunday at Midnight.  Which of the following minimizes backup and recovery time， while providing complete data restore coverage （）
    A

    Full backups every month， daily incremental backups

    B

    Full backups every month， daily differential backups

    C

    Full backup Saturday night， incremental backups the rest of the week

    D

    Full backup Saturday night， differential backups the rest of the week


    正确答案： C
    解析： 暂无解析

  • 第21题：

    单选题
    You lost the PRODSTD tablespace， which was read/write. The tablespace was read-only when the last backup was performed. How would you recover the tablespace？（）
    A

     restore the tablespace from the backup； there is no need to apply the redo information

    B

     restore the full database to recover the data up to the point when you performed the backup

    C

     restore the tablespace from the backup and then perform a recovery using the backup control file

    D

     restore the tablespace from the backup and then recover the tablespace； all the redo information from the point when the tablespace was made read/write is applied


    正确答案： C
    解析： 暂无解析

  • 第22题：

    单选题
    You lost the PRODSTD tablespace， which was read-only. The tablespace was read-only when the last backup was taken. How would you recover the tablespace？（）
    A

     restore the tablespace from the backup， and then perform an incomplete recovery

    B

     restore the tablespace from the backup， and then apply all the redo information

    C

     restore all the data files in the database， and then perform an incomplete recovery

    D

     restore the tablespace from the backup


    正确答案： D
    解析： 暂无解析

  • 第23题：

    多选题
    For an incomplete recovery， which four backup types can be used by Recovery Manager （RMAN） to restore data files？ （）
    A

    RMAN image copies

    B

    RMAN database backups

    C

    RMAN tablespace backups

    D

    user­managed backups placed in the flash recovery area

    E

    user­managed backups that have been cataloged with RMAN

    F

    user­managed data file backups for which the full path name is specified


    正确答案： C,A
    解析： 暂无解析

  • 第24题：

    单选题
    You have lost all your RMAN backup set pieces due to a disk failure. Unfortunately， you have an automated cross-check script that also does a delete expired backupset command. You have restored all the backup set pieces from tape.  What command would you use to get those backup set pieces registered in the recovery catalog and the control file of the database again？（）
    A

     register database

    B

     recover catalog

    C

     load backupset

    D

     synch metadata

    E

     catalog start with


    正确答案： C
    解析： 暂无解析

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