Which of the following best describes a full backup? （）A、All datafiles of a database B、All datafiles, archive logs, and control files C、All datafiles and control files D、All the used blocks in a datafile

题目

Which of the following best describes a full backup? （）

  • A、All datafiles of a database 
  • B、All datafiles, archive logs, and control files 
  • C、All datafiles and control files 
  • D、All the used blocks in a datafile
相似考题

1.Your database is running in ARCHIVELOG mode. One of the data files,USERDATA01.dbf, in the USERS tablespace is damaged and you need to recover the file until the point of failure. The backup for the datafile is available. Which three files would be used in the user-managed recovery process performed by the database administrator (DBA)?（）A. Redo logsB. Control fileC. The latest backup of only the damaged data fileD. The latest backup of all the data file in the USERS tablespaceE. Temporary files of temporary tablespaceF. Archive Logs since the latest backup to point of failure

2.You use a recovery catalog for maintaining your database backups.You execute the following command:$rman TARGET / CATALOG rman / cat@catdbRMAN >BACKUP VALIDATE DATABASE ARCHIVELOG ALL;Which two statements are true?（）A. Corrupted blocks, if any, are repaired.B. Checks are performed for physical corruptions.C. Checks are performed for logical corruptions.D. Checks are performed to confirm whether all database files exist in correct locationsE. Backup sets containing both data files and archive logs are created.

3.Your database is running in ARCHIVELOG mode. One of the data files,USERDATA01.dbf, in the USERS tablespace is damaged and you need to recover the file until the point of failure. The backup for the datafile is available. Which three files would be used in the user-managed recovery process performed by the database administrator (DBA)?（）A、Redo logsB、Control fileC、The latest backup of only the damaged data fileD、The latest backup of all the data file in the USERS tablespaceE、Temporary files of temporary tablespaceF、Archive Logs since the latest backup to point of failure

4.Which of the following files cannot be backed up by RMAN? ()(Choose all that apply.)A. Database datafilesB. Control filesC. Online redo logsD. Database pfilesE. Archived redo logs

更多“Which of the following best describes a full backup? （）A、All datafiles of a database B、All datafiles, archive logs, and control files C、All datafiles and control files D、All the used blocks in a datafile”相关问题

  • 第1题：

    Your database is running in ARCHIVELOG mode. The SCOTT.EMP table belongs to the DATA1 tablespace. The junior DBA erroneously runs a script that executes the following statement：   SQL> DROP TABLE SCOTT.EMP PURGE；   After one hour， you are performing the user managed incomplete recovery. Which datafiles will you restore from the last full backup？（）

    • A、 the datafiles associated with the SYSTEM tablespace
    • B、 the datafiles associated to the DATA1 tablespace
    • C、 the datafiles associated to the SYSTEM and DATA1 tablespaces
    • D、 all the datafiles in the database

    正确答案:D

  • 第2题：

    You are using Oracle Database 10g. You performed an  incomplete recovery of your database and opened the database with the RESETLOGS option.  What is the effect of opening the database with the RESETLOGS option？（）

    • A、This operation resets the SCN for the database.
    • B、This operation creates a new incarnation of the database.
    • C、This operation moves all the redo log files to a different location.
    • D、This operation deletes the old redo log files and creates new redo log files.
    • E、This operation updates all current datafiles and online redo logs and all subsequent archived redo logs with a new RESETLOGS SCN and time stamp.

    正确答案:B,E

  • 第3题：

    You have recovered your Oracle Database 10g by using the control file backup because all copies of the current control file have been lost due to a media failure. You open your database by using the following statement：       SQL>ALTER DATABASE OPEN RESETLOGS；   Which of the following options is true about using the RESETLOGS option？（）

    • A、 The log sequence is reset to 0.
    • B、 All the online redo logs are deleted.
    • C、 All the archived redo logs from a previous incarnation become useless.
    • D、 The full database backup taken from a previous incarnation can be used in future.
    • E、 Only the control file and online redo log files are updated with a new RESETLOGS SCN and time stamp.

    正确答案:D

  • 第4题：

    What is the result of this command？（） RMAN> Report need backup days 3；

    • A、 Lists all datafiles created in the last three days that are not backed up.
    • B、 Lists all datafiles not recoverable based on the current retention criteria.
    • C、 Lists all datafiles not backed up in the last three days. The datafile is not recoverable. 
    • D、 Lists all datafiles that need to be backed up due to unrecoverable operations.
    • E、 Lists all datafiles not backed up in the last three days. It does not imply that the datafile is not recoverable.

    正确答案:E

  • 第5题：

    Why would you execute the report obsolete command？（）  

    • A、 To list all backups that were no longer available for restore operations
    • B、 To list all backups that had aged beyond the RMAN retention criteria
    • C、 To list all backup set pieces listed in control-file or recovery-catalog metadata that are not on the backup media
    • D、 To list all datafiles that are no longer part of the database and thus do not need to be backed up
    • E、 To list all archived redo logs that are no longer needed for any database recovery

    正确答案:B

  • 第6题：

    Which of the following files cannot be backed up by RMAN? （）(Choose all that apply.）

    • A、Database datafiles
    • B、Control files
    • C、Online redo logs
    • D、Database pfiles
    • E、Archived redo logs

    正确答案:C,D

  • 第7题：

    单选题
    Which of the following best describes a full backup? （）
    A

    All datafiles of a database 

    B

    All datafiles, archive logs, and control files 

    C

    All datafiles and control files 

    D

    All the used blocks in a datafile


    正确答案： D
    解析： 暂无解析

  • 第8题：

    多选题
    You use a recovery catalog for maintaining your database backups.You execute the following command:$rman TARGET / CATALOG rman / cat@catdbRMAN > BACKUP VALIDATE DATABASE ARCHIVELOG ALL;Which two statements are true?（）
    A

    Corrupted blocks, if any, are repaired.

    B

    Checks are performed for physical corruptions.

    C

    Checks are performed for logical corruptions.

    D

    Checks are performed to confirm whether all database files exist in correct locations

    E

    Backup sets containing both data files and archive logs are created.


    正确答案： C,A
    解析： 暂无解析

  • 第9题：

    单选题
    In which scenario will you issue the following command？（）      SQL> RECOVER DATABASE UNTIL TIME ’2005-10-04 ： 12：09：08’ USING        BACKUP CONTROLFILE；
    A

     when all the control files are missing and only a binary backup of the current control file exists

    B

     when a multiplexed copy of the current control file is missing

    C

    when all the control files are missing and only a script containing the CREATE CONTROLFILE statement exists

    D

     when the SPFILE is missing


    正确答案： D
    解析： 暂无解析

  • 第10题：

    单选题
    You have recovered your Oracle Database 10g by using the control file backup because all copies of the current control file have been lost due to a media failure. You open your database by using the following statement：       SQL>ALTER DATABASE OPEN RESETLOGS；   Which of the following options is true about using the RESETLOGS option？（）
    A

     The log sequence is reset to 0.

    B

     All the online redo logs are deleted.

    C

     All the archived redo logs from a previous incarnation become useless.

    D

     The full database backup taken from a previous incarnation can be used in future.

    E

     Only the control file and online redo log files are updated with a new RESETLOGS SCN and time stamp.


    正确答案： C
    解析： 暂无解析

  • 第11题：

    单选题
    Assume your situation can be described as follows： x A full backup taken using RMAN is available on disk.  x The current control files were NOT damaged and do not need to be restored.  x All data files are damaged or lost.  x The database is in NOARCHIVELOG mode.  Which RMAN command would be most appropriate to use in line 3 of the following RMAN command set to restore and fully recover your database？（） 1. RMAN> STARTUP MOUNT  2. RMAN> RESTORE DATABASE;  3. RMAN> （）  4. RMAN> ALTER DATABASE OPEN;
    A

    RECOVER DATABASE；

    B

    SWITCH DATAFILE ALL；

    C

    RESTORE CONTROL FILE；

    D

    RECOVER DATABASE USING BACKUP CONTROL FILE；


    正确答案： B
    解析： 暂无解析

  • 第12题：

    单选题
    You have lost all your database control files. To recover them， you are going to use the results of the alter database backup controlfile to trace command. Your datafiles and your online redo logs are all intact.  Which of the following is true regarding your recovery？（）
    A

     You will need to open the database with the resetlogs command.

    B

     All you need to do is execute the trace file from SQL*Plus and it will perform the recovery for you.

    C

     You will use the resetlogs version of the create controlfile command.

    D

     You will use the noresetlogs version of the create controlfile command.

    E

     You will use the trace file to create a backup control file， and then you will recover the database with the recover database using backup controlfile command


    正确答案： E
    解析： 暂无解析

  • 第13题：

    Your database is running in ARCHIVELOG mode. One of the data files, USERDATA01.dbf, in the USERS tablespace is damaged and you need to recover the file until the point of failure. The backup for the datafile is available. Which three files would be used in the user-managed recovery process performed by the database administrator （）(DBA)? (Choose Three)

    • A、Redo logs
    • B、Control file
    • C、The latest backup of only the damaged data file
    • D、The latest backup of all the data file in the USERS tablespace
    • E、Temporary files of temporary tablespace
    • F、Archive Logs since the latest backup to point of failure

    正确答案:A,C,F

  • 第14题：

    You use a recovery catalog for maintaining your database backups.You execute the following command:$rman TARGET / CATALOG rman / cat@catdbRMAN > BACKUP VALIDATE DATABASE ARCHIVELOG ALL;Which two statements are true?（）

    • A、Corrupted blocks, if any, are repaired.
    • B、Checks are performed for physical corruptions.
    • C、Checks are performed for logical corruptions.
    • D、Checks are performed to confirm whether all database files exist in correct locations
    • E、Backup sets containing both data files and archive logs are created.

    正确答案:B,D

  • 第15题：

    You are using RMAN to backup your ARCHIVELOG mode database. You have enabled control-file autobackups. Which files are not backed up during the RMAN backup?（）

    • A、Database Datafiles 
    • B、Database Control Files 
    • C、Online redo logs
    • D、Archived redo logs 
    • E、The database SPFILE 
    • F、None of the above, all these files are backed up. 

    正确答案:C

  • 第16题：

    In which scenario will you issue the following command？（）      SQL> RECOVER DATABASE UNTIL TIME ’2005-10-04 ： 12：09：08’ USING        BACKUP CONTROLFILE；

    • A、 when all the control files are missing and only a binary backup of the current control file exists
    • B、 when a multiplexed copy of the current control file is missing
    • C、when all the control files are missing and only a script containing the CREATE CONTROLFILE statement exists
    • D、 when the SPFILE is missing

    正确答案:A

  • 第17题：

    You have lost all your database control files. To recover them， you are going to use the results of the alter database backup controlfile to trace command. Your datafiles and your online redo logs are all intact.  Which of the following is true regarding your recovery？（）  

    • A、 You will need to open the database with the resetlogs command.
    • B、 All you need to do is execute the trace file from SQL*Plus and it will perform the recovery for you.
    • C、 You will use the resetlogs version of the create controlfile command.
    • D、 You will use the noresetlogs version of the create controlfile command.
    • E、 You will use the trace file to create a backup control file， and then you will recover the database with the recover database using backup controlfile command

    正确答案:D

  • 第18题：

    Which of the following statements is true when the database is in ARCHIVELOG mode and tablespaces are in hot backup mode？（）

    • A、 Archive log generation is suspended until the tablespaces are taken out of hot backup mode. 
    • B、 Datafiles are not written to during hot backups.
    • C、 Changes to the database are cached during the backup and not written to the datafiles to ensure that the datafiles are consistent when recovered.
    • D、 The datafile headers are not updated during the backup.
    • E、 The way data is written to the online redo logs is unchanged during the backup.

    正确答案:D

  • 第19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20题：

    多选题
    You are using Oracle Database 10g. You performed an incomplete recovery of your database and opened the database with the RESETLOGS option.  What is the effect of opening the database with the RESETLOGS option？ （）
    A

    This operation resets the SCN for the database.

    B

    This operation creates a new incarnation of the database.

    C

    This operation moves all the redo log files to a different location.

    D

    This operation deletes the old redo log files and creates new redo log files.

    E

    This operation updates all current datafiles and online redo logs and all subsequent archived redo logs with a new RESETLOGS SCN and time stamp.


    正确答案： C,D
    解析： 暂无解析

  • 第21题：

    单选题
    You are using RMAN to backup your ARCHIVELOG mode database. You have enabled control-file autobackups. Which files are not backed up during the RMAN backup?（）
    A

    Database Datafiles 

    B

    Database Control Files 

    C

    Online redo logs

    D

    Archived redo logs 

    E

    The database SPFILE 

    F

    None of the above, all these files are backed up. 


    正确答案： D
    解析： 暂无解析

  • 第22题：

    单选题
    Your database is running in ARCHIVELOG mode. The SCOTT.EMP table belongs to the DATA1 tablespace. The junior DBA erroneously runs a script that executes the following statement：   SQL> DROP TABLE SCOTT.EMP PURGE；   After one hour， you are performing the user managed incomplete recovery. Which datafiles will you restore from the last full backup？（）
    A

     the datafiles associated with the SYSTEM tablespace

    B

     the datafiles associated to the DATA1 tablespace

    C

     the datafiles associated to the SYSTEM and DATA1 tablespaces

    D

     all the datafiles in the database


    正确答案： C
    解析： 暂无解析

  • 第23题：

    单选题
    Which of the following statements is true when the database is in ARCHIVELOG mode and tablespaces are in hot backup mode？（）
    A

     Archive log generation is suspended until the tablespaces are taken out of hot backup mode. 

    B

     Datafiles are not written to during hot backups.

    C

     Changes to the database are cached during the backup and not written to the datafiles to ensure that the datafiles are consistent when recovered.

    D

     The datafile headers are not updated during the backup.

    E

     The way data is written to the online redo logs is unchanged during the backup.


    正确答案： D
    解析： 暂无解析

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