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单选题You have a read-only tablespace on read-only media. You want to perform a media recovery on the existing data files， but using a backup control file. The backup control file indicates that the status of the read-only tablespace was read/write when the 

题目
单选题
You have a read-only tablespace on read-only media. You want to perform a media recovery on the existing data files， but using a backup control file. The backup control file indicates that the status of the read-only tablespace was read/write when the control file was backed up. What should you consider？（）
A

 take data files from the read-only tablespace offline before performing a recovery

B

 recovery using backup control file is not possible， so restore all the files from the last full database backup， and then open the database

C

 drop the read-only tablespace and re-create the tablespace after recovery

D

 perform a recovery； status of the tablespace in control file will be changed automatically

相似考题

1.When you are performing media recover， and an archived log is lost or corrupt， which type of recover must you perform？（）A、Until SCNB、Until timeC、Until cancelD、Recover using backup control file.

2. In Recovery Manager （RMAN）， you have set control file autobackup to ON by using the following command：  CONFIGURE CONTROLFILE AUTOBACKUP ON;  Which two events would cause the control file to be backed up automatically？ （）A、a tablespace is taken offlineB、the database instance is restartedC、a new data file is added to an existing tablespaceD、a successful backup is recorded in the RMAN repositoryE、the RMAN connection is disconnected from the target database

3.You work as a database administrator for Supportcenter.cn. You are using Recovery Manager （RMAN） to perform backups in your databases. Which four backup operations can be performed using RMAN？（）A、A backup of the target database when it is mountedB、A backup of online redo log files when the database is openC、A backup of only used data blocks in the file beingbeingbackup upD、A backup of online， read/write data files when the database is openE、A backup of only those data blocks that have changed since a previous backupF、A backup of online， read/write data files when the database is in the NOMOUNT state.

4. You have discovered that one of three control files has been lost. What steps would you follow to recover that control file？（）   a. Shut down the database.  b. Restore a control-file copy from backup media.  c. Use the create control file command to create a new control file.  d. Copy the backup control file into place.  e. Create a new copy of the control file from one of the surviving control files.  f. Recover the database using the recover database using backup control file command.  g. Start up the database. A、a， b， f， gB、c， f， gC、a， d， f， gD、a， f， gE、a， e， g

参考答案和解析
正确答案： B
解析： 暂无解析
更多“单选题You have a read-only tablespace on read-only media. You want to perform a media recovery on the existing data files， but using a backup control file. The backup control file indicates that the status of the read-only tablespace was read/write when the ”相关问题

  • 第1题：

    Your database is running In ARCIIIVELOG mode. One of the data files， USBRDATAOI. DBF， in the users tablespace is damaged and you need to recover the file until the point of failure. The backup for the data file is available.  Which three files would be used in the user-managed recovery process performed by the database administrator （DBA）？（） 

    • A、 redo logs
    • B、 control file
    • C、 temporary files of temporary tablespace
    • D、 the latest backup of only the damaged data file
    • E、 the latest backup of all the data files In the USERS tablespace

    正确答案:A,B,D

  • 第2题：

    You have a read-only tablespace on read-only media. You want to perform a media recovery on the existing data files， but using a backup control file. The backup control file indicates that the status of the read-only tablespace was read/write when the control file was backed up. What should you consider？（）

    • A、 take data files from the read-only tablespace offline before performing a recovery
    • B、 recovery using backup control file is not possible， so restore all the files from the last full database backup， and then open the database
    • C、 drop the read-only tablespace and re-create the tablespace after recovery
    • D、 perform a recovery； status of the tablespace in control file will be changed automatically

    正确答案:A

  • 第3题：

    You have a read/x7fonly tablespace on read/x7fonly media. You want to perform a media recovery on the existing data files， but using a backup control file. The backup control file indicates that the status of the read/x7fonly tablespace was read/write when the control file was backed up. What should you consider？（）

    • A、drop the read­only tablespace and re­create the tablespace after recovery
    • B、take data files from the read­only tablespace offline before performing a recovery
    • C、perform a recovery; status of the tablespace in control file will be changed automatically
    • D、recovery using backup control file is not possible， so restore all the files from the last full database backup， and then open the database

    正确答案:B

  • 第4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5题：

    The loss of the control file forced you to re-create the control file. After re-creating it and opening the database， you find that some of the data files are named as MISSINGnnnnn， where nnnnn is a five-digit number starting with 0. What could be the possible reason？（）

    • A、 These are the data files that are corrupted.
    • B、 There is no SYSAUX tablespace in your database
    • C、 There is a read-only tablespace in your database.
    • D、 These are the data files that cannot be recovered.

    正确答案:C

  • 第6题：

    In which of the following scenarios is a tablespace recovery required？（）

    • A、 when recovering a lost read-only tablespace from a read-only tablespace backup
    • B、 when recovering a lost read-only tablespace from a read-write tablespace backup when the database is running in  ARCHIVELOG mode
    • C、 when recovering a lost read-only tablespace from a read-write tablespace backup when the database is running in  NOARCHIVELOG mode and the changes in the online redo log files have been overwritten
    • D、 when recovering a lost read-only tablespace from a read-only tablespace backup using the backup of the control file， the control file was created using the ALTER DATABASE BACKUP CONTROLFILE TO TRACE statement， and this statement was issued when the tablespace was read-only

    正确答案:B

  • 第7题：

    多选题
    You work as a database administrator for Supportcenter.cn. You are using Recovery Manager （RMAN） to perform backups in your databases. Which four backup operations can be performed using RMAN？（）
    A

    A backup of the target database when it is mounted

    B

    A backup of online redo log files when the database is open

    C

    A backup of only used data blocks in the file beingbeingbackup up

    D

    A backup of online， read/write data files when the database is open

    E

    A backup of only those data blocks that have changed since a previous backup

    F

    A backup of online， read/write data files when the database is in the NOMOUNT state.


    正确答案： C,F
    解析： 暂无解析

  • 第8题：

    单选题
    Your database is configured in NOARCHIVELOG mode. Due to a media failure， you have lost one of the datafiles belonging to a read-only tablespace. You know that the last backup was performed after the tablespace was made read-only. Which action should you take to restore the missing datafile in the minimum amount of time？（）
    A

     Restore all the datafiles from the backup.

    B

     Restore only the lost datafile from the backup.

    C

     Restore all the datafiles for the lost tablespace from the backup.

    D

     Restore all the datafiles for the lost tablespace and all the SYSTEM and SYSAUX datafiles from the backup.


    正确答案： C
    解析： 暂无解析

  • 第9题：

    单选题
    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
    解析： 暂无解析

  • 第10题：

    单选题
    You have discovered that one of three control files has been lost. What steps would you follow to recover that control file？（）   a. Shut down the database.  b. Restore a control-file copy from backup media.  c. Use the create control file command to create a new control file.  d. Copy the backup control file into place.  e. Create a new copy of the control file from one of the surviving control files.  f. Recover the database using the recover database using backup control file command.  g. Start up the database.
    A

    a， b， f， g

    B

    c， f， g

    C

    a， d， f， g

    D

    a， f， g

    E

    a， e， g


    正确答案： B
    解析： 暂无解析

  • 第11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12题：

    单选题
    The loss of the control file forced you to re-create the control file. After re-creating it and opening the database， you find that some of the data files are named as MISSINGnnnnn， where nnnnn is a five-digit number starting with 0. What could be the possible reason？（）
    A

     These are the data files that are corrupted.

    B

     There is no SYSAUX tablespace in your database

    C

     There is a read-only tablespace in your database.

    D

     These are the data files that cannot be recovered.


    正确答案： A
    解析： 暂无解析

  • 第13题：

    Your database is functioning in NOARCHIVELOG mode. Your database contains 15 tablespaces. You want to use Recovery Manager （RMAN） to perform backups. Which two backups would you be able to perform when the database is being accessed by users？（）

    • A、 Backup of offline tablespaces.
    • B、 Backup of read-only tablespaces.
    • C、 Backup of system-critical tablespaces.
    • D、 Backup of online， locally managed tablespaces.
    • E、 Backup of read/write dictionary-managed tablespaces.

    正确答案:A,B

  • 第14题：

    One of the tablespaces is read/x7fonly in your database. The loss of all control files forced you to re/x7fcreate the control file.  Which operation do you need to perform after re/x7fcreating the control file and opening the database？（）

    • A、drop and re­create the read­only tablespaces
    • B、rename the read­only data files to their correct file names
    • C、change the tablespace status from read/write to read­only
    • D、re­create the read­only tablespace because it is automatically removed

    正确答案:B

  • 第15题：

    In Recovery Manager （RMAN）， you have set control file autobackup to ON by using the following command： CONFIGURE CONTROLFILE AUTOBACKUP ON； Which two events would cause the control file to be backed up automatically？ （）

    • A、 A tablespace is taken offline.
    • B、 The database instance is restarted.
    • C、 A new data file is added to an existing tablespace.
    • D、 A successful backup is recorded in the RMAN repository.
    • E、 The RMAN connection is disconnected from the target database.

    正确答案:C,D

  • 第16题：

    You lost a data file that belongs to an index tablespace in your database， which operates in ARCHIVELOG mode. Loss of the data file resulted in increased response time on your queries. Which two options would you use to solve this problem？ （）

    • A、 Restore the lost data file from the backup， and then flash back the database.
    • B、 Restore the data file pertaining to index tablespace， and then recover the tablespace.
    • C、 Restore all the data files， and then perform an incomplete recovery to get the tablespace back.
    • D、 Restore all the data files， and then perform an incomplete recovery using the backup control file.
    • E、 Drop and re-create the index tablespace， and then re-create all of the indexes in that tablespace.

    正确答案:B,E

  • 第17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18题：

    单选题
    One of the tablespaces is read/x7fonly in your database. The loss of all control files forced you to re/x7fcreate the control file.  Which operation do you need to perform after re/x7fcreating the control file and opening the database？（）
    A

    drop and re­create the read­only tablespaces

    B

    rename the read­only data files to their correct file names

    C

    change the tablespace status from read/write to read­only

    D

    re­create the read­only tablespace because it is automatically removed


    正确答案： D
    解析： 暂无解析

  • 第19题：

    单选题
    You have a read/x7fonly tablespace on read/x7fonly media. You want to perform a media recovery on the existing data files， but using a backup control file. The backup control file indicates that the status of the read/x7fonly tablespace was read/write when the control file was backed up. What should you consider？（）
    A

    drop the read­only tablespace and re­create the tablespace after recovery

    B

    take data files from the read­only tablespace offline before performing a recovery

    C

    perform a recovery; status of the tablespace in control file will be changed automatically

    D

    recovery using backup control file is not possible， so restore all the files from the last full database backup， and then open the database


    正确答案： B
    解析： 暂无解析

  • 第20题：

    单选题
    One of the tablespaces is read-only in your database. The loss of all control files forced you to re-create the control file. Which operation do you need to perform after re-creating the control file and opening the database？（）
    A

     drop and re-create the read-only tablespaces

    B

     rename the read-only data files to their correct file names

    C

     change the tablespace status from read/write to read-only

    D

     re-create the read-only tablespace because it is automatically removed


    正确答案： C
    解析： 暂无解析

  • 第21题：

    单选题
    In which of the following scenarios is a tablespace recovery required？（）
    A

     when recovering a lost read-only tablespace from a read-only tablespace backup

    B

     when recovering a lost read-only tablespace from a read-write tablespace backup when the database is running in  ARCHIVELOG mode

    C

     when recovering a lost read-only tablespace from a read-write tablespace backup when the database is running in  NOARCHIVELOG mode and the changes in the online redo log files have been overwritten

    D

     when recovering a lost read-only tablespace from a read-only tablespace backup using the backup of the control file， the control file was created using the ALTER DATABASE BACKUP CONTROLFILE TO TRACE statement， and this statement was issued when the tablespace was read-only


    正确答案： B
    解析： 暂无解析

  • 第22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23题：

    单选题
    When you are performing media recover， and an archived log is lost or corrupt， which type of recover must you perform？（）
    A

    Until SCN

    B

    Until time

    C

    Until cancel

    D

    Recover using backup control file.


    正确答案： D
    解析： 暂无解析

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