单选题You find that the database performance degrades while you backup the PROD database using Recovery Manager （RMAN）. The PROD database is running in shared server mode. The database instance is currently using 60% of total operating system memory. You sus

题目
单选题
You find that the database performance degrades while you backup the PROD database using Recovery Manager （RMAN）. The PROD database is running in shared server mode. The database instance is currently using 60% of total operating system memory. You suspect the shared pool fragmentation to be the reason. Which action would you consider to overcome the performance degradation？（）
A

Configure Java Pool to cache the java objects.

B

Configure Streams Pool to enable parallel processing.

C

Increase Shared Pool size to cache more PL/SQL objects.

D

Increase Database Buffer Cache size to increase cache hits.

E

Configure Large Pool to be used by RMAN and shared server.

F

Increase the total System Global Area （SGA） size to increase memory hits.

相似考题

1.You are working on the PROD database， which is in NOARCHIVELOG mode. You lost the active online redo log group due to a media failure. How should you recover your database？（）A、 Restore the database from a whole consistent backup and start the database in MOUNT mode. Then， open the database with the RESETLOGS option after performing a cancel-based recovery.B、 Restore the database from a whole consistent backup and start the database in MOUNT mode. Then， drop the lost redo log group and open the database with the RESETLOGS option after performing a cancel-based recovery.C、 Restore the database from a whole consistent backup and start the database in MOUNT mode. Then， clear the lost redo log group and open the database with the RESETLOGS option after performing a cancel-based recovery.D、 Do nothing. You do not need to recover the database in this case； an instance recovery will be performed by the SMON process on startup.

2.Your database runs in NOARCHIVELOG mode， and is backed up every night using RMAN scripts. However， last night your assistant DBA performed a manual operating system backup， instead of running the scripts. Today your database crashed and you now want to use the backups from last night. What do you need todo？（）A、You need to perform the restore and recover operations manually, because the backup was made manually. B、First you need to resynchronize the catalog with the control file, and then you can use RMAN to recover the database. C、First you need to add the backup to the catalog using the CATALOG command, and then you can use RMAN to recover the database. D、You can just use RMAN and recover the database, because RMAN automatically updates the catalog with the backup information. 

3. Your PROD database has been started using the server parameter file. In your PROD database you are using RMAN for backup and recovery operations. You issue the following commands from the RMAN prompt：     RMAN> CONFIGURE CONTROLFILE AUTOBACKUP OFF；   RMAN> BACKUP DATABASE；   Which files from the database will be backed up as a result of this BACKUP command？（）A、 control fileB、 all datafilesC、 password fileD、 online redo log fileE、 archive redo log fileF、 server parameter fileG、 only the SYSTEM datafile

4. The database is running in the ARCHIVELOG mode. It has three redo log groups with one member each. One of the redo log groups has become corrupted. You have issued the following command during the recovery of a damaged redo log file：   ALTER DATABASE CLEAR UNARCHIVED LOGFILE GROUP 3；   Which action should you perform immediately after using this command？（）  A、 You should perform a log switchB、 You should make a backup of the databaseC、 You should switch the database to the NONARCHIVELOG modeD、 You should shut down the database instance and perform a complete database recovery

参考答案和解析
正确答案： A
解析： 暂无解析
更多“单选题You find that the database performance degrades while you backup the PROD database using Recovery Manager （RMAN）. The PROD database is running in shared server mode. The database instance is currently using 60% of total operating system memory. You sus”相关问题

  • 第1题：

    While setting up an Oracle database for one of your critical applications， you want to ensure that the database is backed up at regular intervals without your intervention.What should you do to achieve the objective？（）

    • A、configure the database to run in ARCHIVELOG mode
    • B、configure the Flash Recovery Area to enable automatic database backup
    • C、schedule the database backup using DBMS_JOB package after creating the database
    • D、schedule the database backup using Recovery Manager （RMAN）commands after creating the database
    • E、schedule the database backup using Database Configuration Assistant （DBCA）while creating the database

    正确答案:E

  • 第2题：

    It is a holiday and no transactions are being performed on the database. You took a consistent backup of your database without using Recovery Manager （RMAN）. How would you make use of this consistent backup in RMAN？（）

    • A、cannot be used in RMAN
    • B、by starting up the database again
    • C、by using the CATALOG command of RMAN
    • D、by using the RECOVER CATALOG command in RMAN
    • E、by re-creating the target control file to rebuild the RMAN repository

    正确答案:C

  • 第3题：

    You find that the database performance degrades while you backup the PROD database using Recovery Manager （RMAN）. The PROD database is running in shared server mode. The database instance is currently using 60% of total operating system memory. You suspect the shared pool fragmentation to be the reason. Which action would you consider to overcome the performance degradation？（）

    • A、Configure Java Pool to cache the java objects.
    • B、Configure Streams Pool to enable parallel processing.
    • C、Increase Shared Pool size to cache more PL/SQL objects.
    • D、Increase Database Buffer Cache size to increase cache hits.
    • E、Configure Large Pool to be used by RMAN and shared server.
    • F、Increase the total System Global Area （SGA） size to increase memory hits.

    正确答案:E

  • 第4题：

    Your database is in ARCHIVELOG mode. On Friday evening， you perform an online database backup by using the BACKUP DATABASE command at the Recovery Manager （RMAN） prompt and close the  database. On Monday， the System Administrator informs you about the failure of two hard disks. One of the lost disks contains two datafiles， HR1.DBF and HR2.DBF， both of which belong to a read/write tablespace named HR. The disk also contains a datafile， USERS.DBF， which belongs to a read/write tablespace named USERS. You need to restore and recover the database backup that was performed on Friday evening. After mounting the database， you issue the following RMAN commands：        RMAN>RESTORE DATABASE；        RMAN>RECOVER DATABASE；   After successfully executing these RMAN commands， you issue the following statement using SQL*Plus：        SQL>ALTER DATABASE OPEN；   You receive the following errors when attempting to open the database：        ORA-01157： cannot identify/lock data file 10 see DBWR trace file        ORA-01110： data file 10： ’D:///USERS.DBF’   What is the cause of these errors？（）

    • A、 The USERS.DBF datafile is corrupted and cannot be restored by RMAN.
    • B、 The USERS.DBF datafile was not backed up using the RMAN BACKUP DATABASE command.
    • C、 The USERS.DBF datafile was not restored using the RMAN RESTORE DATABASE command.
    • D、 The USERS.DBF datafile was not recovered using the RMAN RECOVER DATABASE command.

    正确答案:C

  • 第5题：

    You work as a database administrator for Supportcenter.cn. You are using Recovery Manager （RMAN） for backup and recovery of your database. You executed the delete command in RMAN to delete a backup of a tablespace. Which statement is true in this scenario？（）

    • A、The backup status will be marked expired in RMAN recovery catalog.
    • B、The backup status will be marked deleted in RMAN recovery catalog after you execute the crosscheck command.
    • C、The backup will be deleted physically from the OS （Operating system）and the backup information is removed from the recovery catalogl
    • D、The backup status will be marked deleted and you must delete the backup file manually from the OS （Operating system）.
    • E、The backup status will be marked deleted and you must delete the backup file manually from the OS （Operating system）， if you are not using Oracle Managed Files （OMF）.

    正确答案:C

  • 第6题：

    单选题
    You find that the database performance degrades while you backup the PROD database using Recovery Manager （RMAN）. The PROD database is running in shared server mode. The database instance is currently using 60% of total operating system memory. You suspect the shared pool fragmentation to be the reason. Which action would you consider to overcome the performance degradation？（）
    A

    Configure Java Pool to cache the java objects.

    B

    Configure Streams Pool to enable parallel processing.

    C

    Increase Shared Pool size to cache more PL/SQL objects.

    D

    Increase Database Buffer Cache size to increase cache hits.

    E

    Configure Large Pool to be used by RMAN and shared server.

    F

    Increase the total System Global Area （SGA） size to increase memory hits.


    正确答案： D
    解析： 暂无解析

  • 第7题：

    多选题
    Your database is running in the ARCHIVELOG mode. You have configured RMAN for backup and recovery operations. You execute the following command from the RMAN prompt：   RMAN> CONFIGURE CONTROLFILE AUTOBACKUP ON；   After executing this command， in which of the following cases will RMAN make an auto-backup of the control file？ （）
    A

    when you change the name of a datafile

    B

    when you drop a table from the database

    C

    when you take an export of the database

    D

    when you back up the database using OS utilities

    E

    when you issue an ALTER SYSTEM SWITCH LOGFILE statement

    F

    when you issue a BACKUP command from inside the RMAN run block


    正确答案： D,B
    解析： 暂无解析

  • 第8题：

    单选题
    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 mode

    B

     Opening the database with the RESETLOGS option

    C

     Setting a new DBID for the newly restored database

    D

     Restoring the server parameter file （SPFILE） to the new host


    正确答案： A
    解析： 暂无解析

  • 第9题：

    单选题
    You work as a database administrator for Certkiller .com. You find that the database performance degrades while you backup the Certkiller database using Recovery Manager （RMAN）. The Certkiller database is running in shared server mode. The database instance is currently using 60% of total operating system memory. You suspect the shared pool fragmentation to be the reason.  Which action would you consider to overcome the performance degradation？（）
    A

    Configure Java Pool to cache the java objects.

    B

    Configure Streams Pool to enable parallel processing.

    C

    Increase Shared Pool size to cache more PL/SQL objects.

    D

    Increase Database Buffer Cache size to increase cache hits.

    E

    Configure Large Pool to be used by RMAN and shared server.

    F

    Increase the total System Global Area （SGA） size to increase memory hits.


    正确答案： D
    解析： 暂无解析

  • 第10题：

    单选题
    You work as a database administrator for Supportcenter.cn. You are using Recovery Manager （RMAN） for backup and recovery of your database. You executed the delete command in RMAN to delete a backup of a tablespace. Which statement is true in this scenario？（）
    A

    The backup status will be marked expired in RMAN recovery catalog.

    B

    The backup status will be marked deleted in RMAN recovery catalog after you execute the crosscheck command.

    C

    The backup will be deleted physically from the OS （Operating system）and the backup information is removed from the recovery catalogl

    D

    The backup status will be marked deleted and you must delete the backup file manually from the OS （Operating system）.

    E

    The backup status will be marked deleted and you must delete the backup file manually from the OS （Operating system）， if you are not using Oracle Managed Files （OMF）.


    正确答案： E
    解析： 暂无解析

  • 第11题：

    多选题
    Your PROD database has been started using the server parameter file. In your PROD database you are using RMAN for backup and recovery operations. You issue the following commands from the RMAN prompt：     RMAN> CONFIGURE CONTROLFILE AUTOBACKUP OFF；   RMAN> BACKUP DATABASE；   Which files from the database will be backed up as a result of this BACKUP command？（）
    A

    control file

    B

    all datafiles

    C

    password file

    D

    online redo log file

    E

    archive redo log file

    F

    server parameter file

    G

    only the SYSTEM datafile


    正确答案： C,D
    解析： 暂无解析

  • 第12题：

    单选题
    Your database runs in NOARCHIVELOG mode， and is backed up every night using RMAN scripts. However， last night your assistant DBA performed a manual operating system backup， instead of running the scripts. Today your database crashed and you now want to use the backups from last night. What do you need todo？（）
    A

    You need to perform the restore and recover operations manually, because the backup was made manually. 

    B

    First you need to resynchronize the catalog with the control file, and then you can use RMAN to recover the database. 

    C

    First you need to add the backup to the catalog using the CATALOG command, and then you can use RMAN to recover the database. 

    D

    You can just use RMAN and recover the database, because RMAN automatically updates the catalog with the backup information. 


    正确答案： A
    解析： 暂无解析

  • 第13题：

    You have an Automatic Storage Management （ASM） instance managing the database files of your production database. The database contains ASM files and non-ASM files. Using Recovery Manager （RMAN）， you migrate the complete production database to use the ASM instance. Which statement is true？ （）

    • A、 RMAN would relocate all the data files to an ASM disk group and other files to an operating system location， defined using Oracle Managed Files （OMF）.
    • B、 RMAN would relocate the ASM files to an ASM disk group and the non-ASM files to an operating system location， defined using OMF
    • C、 RMAN would relocate all the database files to an ASM disk group.
    • D、 RMAN would change the file definitions in the control file to use the ASM but would not relocate the database files physically.

    正确答案:C

  • 第14题：

    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 mode
    • B、 Opening the database with the RESETLOGS option
    • C、 Setting a new DBID for the newly restored database
    • D、 Restoring the server parameter file （SPFILE） to the new host

    正确答案:B

  • 第15题：

    You are using the backup scheduler in Enterprise Manager （EM） to schedule a backup of your database. Which type of script does the backup scheduler generate？ （）

    • A、SQL script
    • B、PL/SQL script
    • C、Operating System （OS） script
    • D、Enterprise Manager （EM） script
    • E、Recovery Manager （RMAN） script

    正确答案:E

  • 第16题：

    You administer an Oracle Database 10g and a third-party database. You use Recovery Manager （RMAN） to perform backup and recovery operations. You have configured a recovery catalog to act as an RMAN repository. To which of the following databases can you NOT connect using the RMAN CONNECT command？（）

    • A、 target database
    • B、 auxiliary database
    • C、 third-party database
    • D、 recovery catalog database

    正确答案:C

  • 第17题：

    You work as a database administrator for Certkiller .com. You find that the database performance degrades while you backup the Certkiller database using Recovery Manager （RMAN）. The Certkiller database is running in shared server mode. The database instance is currently using 60% of total operating system memory. You suspect the shared pool fragmentation to be the reason.  Which action would you consider to overcome the performance degradation？（）

    • A、Configure Java Pool to cache the java objects.
    • B、Configure Streams Pool to enable parallel processing.
    • C、Increase Shared Pool size to cache more PL/SQL objects.
    • D、Increase Database Buffer Cache size to increase cache hits.
    • E、Configure Large Pool to be used by RMAN and shared server.
    • F、Increase the total System Global Area （SGA） size to increase memory hits.

    正确答案:E

  • 第18题：

    单选题
    You are working on the PROD database， which is in NOARCHIVELOG mode. You lost the active online redo log group due to a media failure. How should you recover your database？（）
    A

     Restore the database from a whole consistent backup and start the database in MOUNT mode. Then， open the database with the RESETLOGS option after performing a cancel-based recovery.

    B

     Restore the database from a whole consistent backup and start the database in MOUNT mode. Then， drop the lost redo log group and open the database with the RESETLOGS option after performing a cancel-based recovery.

    C

     Restore the database from a whole consistent backup and start the database in MOUNT mode. Then， clear the lost redo log group and open the database with the RESETLOGS option after performing a cancel-based recovery.

    D

     Do nothing. You do not need to recover the database in this case； an instance recovery will be performed by the SMON process on startup.


    正确答案： D
    解析： 暂无解析

  • 第19题：

    单选题
    It is a holiday and no transactions are being performed on the database. You took a consistent backup of your database without using Recovery Manager （RMAN）. How would you make use of this consistent backup in RMAN？（）
    A

    cannot be used in RMAN

    B

    by starting up the database again

    C

    by using the CATALOG command of RMAN

    D

    by using the RECOVER CATALOG command in RMAN

    E

    by re-creating the target control file to rebuild the RMAN repository


    正确答案： C
    解析： 暂无解析

  • 第20题：

    单选题
    Your database is in ARCHIVELOG mode. On Friday evening， you perform an online database backup by using the BACKUP DATABASE command at the Recovery Manager （RMAN） prompt and close the  database. On Monday， the System Administrator informs you about the failure of two hard disks. One of the lost disks contains two datafiles， HR1.DBF and HR2.DBF， both of which belong to a read/write tablespace named HR. The disk also contains a datafile， USERS.DBF， which belongs to a read/write tablespace named USERS. You need to restore and recover the database backup that was performed on Friday evening. After mounting the database， you issue the following RMAN commands：        RMAN>RESTORE DATABASE；        RMAN>RECOVER DATABASE；   After successfully executing these RMAN commands， you issue the following statement using SQL*Plus：        SQL>ALTER DATABASE OPEN；   You receive the following errors when attempting to open the database：        ORA-01157： cannot identify/lock data file 10 see DBWR trace file        ORA-01110： data file 10： ’D:///USERS.DBF’   What is the cause of these errors？（）
    A

     The USERS.DBF datafile is corrupted and cannot be restored by RMAN.

    B

     The USERS.DBF datafile was not backed up using the RMAN BACKUP DATABASE command.

    C

     The USERS.DBF datafile was not restored using the RMAN RESTORE DATABASE command.

    D

     The USERS.DBF datafile was not recovered using the RMAN RECOVER DATABASE command.


    正确答案： C
    解析： 暂无解析

  • 第21题：

    单选题
    You have an Automatic Storage Management （ASM） instance managing the database files of your production database. The database contains ASM files and non-ASM files. Using Recovery Manager （RMAN）， you migrate the complete production database to use the ASM instance. Which statement is true？ （）
    A

     RMAN would relocate all the data files to an ASM disk group and other files to an operating system location， defined using Oracle Managed Files （OMF）.

    B

     RMAN would relocate the ASM files to an ASM disk group and the non-ASM files to an operating system location， defined using OMF

    C

     RMAN would relocate all the database files to an ASM disk group.

    D

     RMAN would change the file definitions in the control file to use the ASM but would not relocate the database files physically.


    正确答案： C
    解析： 暂无解析

  • 第22题：

    单选题
    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 mode

    B

    Opening the database with the RESETLOGS option

    C

    Setting a new DBID for the newly restored database

    D

    Restoring the server parameter file (SPFILE) to the new host


    正确答案： B
    解析： 暂无解析

  • 第23题：

    单选题
    While setting up an Oracle database for one of your critical applications， you want to ensure that the database is backed up at regular intervals without your intervention.What should you do to achieve the objective？（）
    A

    configure the database to run in ARCHIVELOG mode

    B

    configure the Flash Recovery Area to enable automatic database backup

    C

    schedule the database backup using DBMS_JOB package after creating the database

    D

    schedule the database backup using Recovery Manager （RMAN）commands after creating the database

    E

    schedule the database backup using Database Configuration Assistant （DBCA）while creating the database


    正确答案： B
    解析： 暂无解析

  • 第24题：

    单选题
    You administer an Oracle Database 10g and a third-party database. You use Recovery Manager （RMAN） to perform backup and recovery operations. You have configured a recovery catalog to act as an RMAN repository. To which of the following databases can you NOT connect using the RMAN CONNECT command？（）
    A

     target database

    B

     auxiliary database

    C

     third-party database

    D

     recovery catalog database


    正确答案： B
    解析： 暂无解析

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