单选题You are adding redo logs to the Oracle database. Creating a new redo log adds information to which of the following Oracle resources? （）A Shared pool B Control file C SGA D PGA

题目
单选题
You are adding redo logs to the Oracle database. Creating a new redo log adds information to which of the following Oracle resources? （）
A

Shared pool 

B

Control file 

C

SGA 

D

PGA

相似考题

1.You are working on an Oracle Database 10g database. You enabled the Flashback Database feature. Which two statements regarding flashback logs are true？ （）A、 Flashback logs are not archived.B、 Flashback logs are maintained in redo log files.C、 Flashback logs are maintained in the Flash Recovery Area.D、 Flashback logs are used to maintain Flashback Database related errors.E、 Flashback logs need to be cleared manually after you disable Flashback Database.

2.You are analyzing the components of the redo log mechanisms in your Oracle database. Which of the following purposes does the CKPT process serve?（）A、Writes buffers to disk B、Writes current redo log number to datafile headers C、Writes redo log information to disk D、Reads information into memory for users

3. 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.

4.You noticed that large memory allocations for the Oracle backup and restore operations are causing a performance overhead on the shared pool. Which memory structure would you configure to avoid this performance overhead？（）A、 recycle buffer cacheB、 large poolC、 streams poolD、 keep buffer cacheE、 redo log buffer

更多“单选题You are adding redo logs to the Oracle database. Creating a new redo log adds information to which of the following Oracle resources? （）A Shared pool B Control file C SGA D PGA”相关问题

  • 第1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2题：

    You are adding redo logs to the Oracle database. Creating a new redo log adds information to which of the following Oracle resources? （）

    • A、Shared pool 
    • B、Control file 
    • C、SGA 
    • D、PGA

    正确答案:B

  • 第3题：

    Because of hardware failure， you decided to drop a redo log member from the database. Which condition should be met to drop a redo log file？（）

    • A、 The redo log file should belong to an active group.
    • B、 The redo log file should belong to an inactive group.
    • C、 The redo log file should belong to the current group.
    • D、 The redo log file can be dropped only if all the transactions are stopped.
    • E、 Before a redo log file is dropped， it should be deleted from the operating system （OS）.

    正确答案:B

  • 第4题：

    In a situation where no multiplexing of redo logs takes place, what happens when Oracle cannot read data from the online redo log group for archiving?（）

    • A、Nothing happens
    • B、Oracle will automatically switch redo logs when detected 
    • C、Oracle eventually won't allow new records to be added to the database 
    • D、The instance crashes

    正确答案:C

  • 第5题：

    You are working as a DBA on Oracle Database 9i. You plan to upgrade your 9i database to Oracle 10g. To be familiar with the new database technology， you decide to install Oracle Database 10g on your workstation at home. You create a general purpose database.   After the installation， you make the following changes in your initialization parameter file：LOG_ARCHIVE_DEST_1=’LOCATION=USE_DB_RECOVERY_FILE_DEST’   DB_RECOVERY_FILE_DEST =    ’LOCATION=d：/product/10.1.0/flash_recovery_area’  DB_RECOVERY_FILE_DEST_SIZE=10g   Where are the archived redo logs stored for your database？（）

    • A、 The archived redo logs are stored in an operating system-dependent location.
    • B、 The archived redo logs are stored in the location specified by LOG_ARCHIVE_DEST_1.
    • C、 The archived redo logs are stored in the location specified by DB_RECOVERY_FILE_DEST.
    • D、 The archived redo logs are stored in the locations specified by both LOG_ARCHIVE_DEST_1 and  DB_RECOVERY_FILE_DEST.

    正确答案:C

  • 第6题：

    You have lost all your online redo logs. As a result， your database has crashed. You have tried to restart the database and clear the online redo log files， but when you try to open the database you get the following error.   SQL> startup ORACLE instance started.  Total System Global Area 167395328 bytes Fixed Size 1298612 bytes Variable Size 142610252 bytes Database Buffers 20971520 bytes Redo Buffers 2514944 bytes Database mounted.  ORA-00313： open failed for members of log group 2 of thread 1 ORA-00312： online log 2 thread 1： ，，/oracle01/oradata/orcl/redo02a.log ORA-27037： unable to obtain file status Linux Error： 2： No such file or directory Additional information： 3  ORA-00312： online log 2 thread 1： ，，/oracle01/oradata/orcl/redo02.log ORA-27037： unable to obtain file status Linux Error： 2： No such file or directory Additional information： 3  SQL> alter database clear logfile group 2； alter database clear logfile group 2 * ERROR at line 1：  ORA-01624： log 2 needed for crash recovery of instance orcl （thread 1） ORA-00312： online log 2 thread 1： ，，/oracle01/oradata/orcl/redo02.log ORA-00312： online log 2 thread 1： ，，/oracle01/oradata/orcl/redo02a.log   What steps must you take to resolve the error？（） a. Issue the recover database redo logs command.  b. Issue the Startup Mount command to mount the database.  c. Restore the last full database backup.  d. Perform a point-in-time recovery， applying all archived redo logs that are available.  e. Restore all archived redo logs generated during and after the last full database backup.  f. Open the database using the alter database open resetlogs command.  g. Issue the alter database open command.

    • A、b， a， f
    • B、e， b， a， f
    • C、e， b， a， g
    • D、b， a， g
    • E、c， e， b， d， f

    正确答案:E

  • 第7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8题：

    单选题
    You are maintaining your database in Oracle10g. You are not using the recovery catalog to maintain the backup information of your database. Which file can be used as a repository to store information regarding the RMAN backup？（）
    A

     online redo log files

    B

     alert log files

    C

     control file

    D

     datafiles associated with the SYSTEM tablespace


    正确答案： A
    解析： 暂无解析

  • 第9题：

    单选题
    Because of hardware failure， you decided to drop a redo log member from the database. Which condition should be met to drop a redo log file？（）
    A

     The redo log file should belong to an active group.

    B

     The redo log file should belong to an inactive group.

    C

     The redo log file should belong to the current group.

    D

     The redo log file can be dropped only if all the transactions are stopped.

    E

     Before a redo log file is dropped， it should be deleted from the operating system （OS）.


    正确答案： A
    解析： 暂无解析

  • 第10题：

    单选题
    You are working as a DBA on Oracle Database 9i. You plan to upgrade your 9i database to Oracle 10g. To be familiar with the new database technology， you decide to install Oracle Database 10g on your workstation at home. You create a general purpose database.   After the installation， you make the following changes in your initialization parameter file：LOG_ARCHIVE_DEST_1=’LOCATION=USE_DB_RECOVERY_FILE_DEST’   DB_RECOVERY_FILE_DEST =    ’LOCATION=d：/product/10.1.0/flash_recovery_area’  DB_RECOVERY_FILE_DEST_SIZE=10g   Where are the archived redo logs stored for your database？（）
    A

     The archived redo logs are stored in an operating system-dependent location.

    B

     The archived redo logs are stored in the location specified by LOG_ARCHIVE_DEST_1.

    C

     The archived redo logs are stored in the location specified by DB_RECOVERY_FILE_DEST.

    D

     The archived redo logs are stored in the locations specified by both LOG_ARCHIVE_DEST_1 and  DB_RECOVERY_FILE_DEST.


    正确答案： D
    解析： 暂无解析

  • 第11题：

    单选题
    You received the following error：   ORA-01578： ORACLE data block corrupted   （file # %s， block # %s）   Which file will you check to view additional information regarding the cause of this error？（）
    A

    the alert log file and the trace files

    B

     the redo log files

    C

     the control file

    D

     the change tracking file


    正确答案： C
    解析： 暂无解析

  • 第12题：

    单选题
    You have lost all your online redo logs. As a result， your database has crashed. You have tried to restart the database and clear the online redo log files， but when you try to open the database you get the following error.   SQL> startup ORACLE instance started.  Total System Global Area 167395328 bytes Fixed Size 1298612 bytes Variable Size 142610252 bytes Database Buffers 20971520 bytes Redo Buffers 2514944 bytes Database mounted.  ORA-00313： open failed for members of log group 2 of thread 1 ORA-00312： online log 2 thread 1： ，，/oracle01/oradata/orcl/redo02a.log ORA-27037： unable to obtain file status Linux Error： 2： No such file or directory Additional information： 3  ORA-00312： online log 2 thread 1： ，，/oracle01/oradata/orcl/redo02.log ORA-27037： unable to obtain file status Linux Error： 2： No such file or directory Additional information： 3  SQL> alter database clear logfile group 2； alter database clear logfile group 2 * ERROR at line 1：  ORA-01624： log 2 needed for crash recovery of instance orcl （thread 1） ORA-00312： online log 2 thread 1： ，，/oracle01/oradata/orcl/redo02.log ORA-00312： online log 2 thread 1： ，，/oracle01/oradata/orcl/redo02a.log   What steps must you take to resolve the error？（） a. Issue the recover database redo logs command.  b. Issue the Startup Mount command to mount the database.  c. Restore the last full database backup.  d. Perform a point-in-time recovery， applying all archived redo logs that are available.  e. Restore all archived redo logs generated during and after the last full database backup.  f. Open the database using the alter database open resetlogs command.  g. Issue the alter database open command.
    A

    b， a， f

    B

    e， b， a， f

    C

    e， b， a， g

    D

    b， a， g

    E

    c， e， b， d， f


    正确答案： C
    解析： 暂无解析

  • 第13题：

    When you are allowing RMAN to backup your archived redo log files，how does RMAN know which archived redo logs to back up from your archive log destination？（）

    • A、RMAN keeps a list of archive logs in a text file.
    • B、The DBA must manually tell RMAN which archive logs to backup.
    • C、RMAN has access to target control file and/or catalog information.
    • D、RMAN looks at the ARCHIVE_LOG_DEST parameter of your target database and backs up all archive logs found.

    正确答案:C

  • 第14题：

    You are maintaining your database in Oracle10g. You are not using the recovery catalog to maintain the backup information of your database. Which file can be used as a repository to store information regarding the RMAN backup？（）

    • A、 online redo log files
    • B、 alert log files
    • C、 control file
    • D、 datafiles associated with the SYSTEM tablespace

    正确答案:C

  • 第15题：

    You have configured the flash recovery area to store online redo log files， control files， archived redo logs and RMAN backups. Which of the following files can you successfully delete from the flash recovery area if you want to reclaim the space within it？（）

    • A、 multiplexed control files
    • B、 RMAN obsolete backups
    • C、 multiplexed online redo log files
    • D、 archived redo logs that have not been copied to tape

    正确答案:B

  • 第16题：

    For Oracle 11g， Oracle strongly recommends that you configure your database to use which of the following memory-management features？（）  

    • A、 Automatic PGA Memory Management
    • B、 Automatic SGA Memory Management
    • C、 Automatic Shared Memory Management
    • D、 Automatic Memory Management
    • E、 Manual SGA Memory Management
    • F、 None of the above

    正确答案:D

  • 第17题：

    You received the following error：   ORA-01578： ORACLE data block corrupted   （file # %s， block # %s）   Which file will you check to view additional information regarding the cause of this error？（）

    • A、the alert log file and the trace files
    • B、 the redo log files
    • C、 the control file
    • D、 the change tracking file

    正确答案:A

  • 第18题：

    单选题
    You have configured the flash recovery area to store online redo log files， control files， archived redo logs and RMAN backups. Which of the following files can you successfully delete from the flash recovery area if you want to reclaim the space within it？（）
    A

     multiplexed control files

    B

     RMAN obsolete backups

    C

     multiplexed online redo log files

    D

     archived redo logs that have not been copied to tape


    正确答案： D
    解析： 暂无解析

  • 第19题：

    单选题
    You are adding redo logs to the Oracle database. Creating a new redo log adds information to which of the following Oracle resources? （）
    A

    Shared pool 

    B

    Control file 

    C

    SGA 

    D

    PGA


    正确答案： C
    解析： 暂无解析

  • 第20题：

    单选题
    You are analyzing the components of the redo log mechanisms in your Oracle database. Which of the following purposes does the CKPT process serve?（）
    A

    Writes buffers to disk 

    B

    Writes current redo log number to datafile headers 

    C

    Writes redo log information to disk 

    D

    Reads information into memory for users


    正确答案： A
    解析： 暂无解析

  • 第21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22题：

    单选题
    You noticed that large memory allocations for the Oracle backup and restore operations are causing a performance overhead on the shared pool. Which memory structure would you configure to avoid this performance overhead？（）
    A

     recycle buffer cache

    B

     large pool

    C

     streams pool

    D

     keep buffer cache

    E

     redo log buffer


    正确答案： A
    解析： 暂无解析

  • 第23题：

    单选题
    When you are allowing RMAN to backup your archived redo log files，how does RMAN know which archived redo logs to back up from your archive log destination？（）
    A

    RMAN keeps a list of archive logs in a text file.

    B

    The DBA must manually tell RMAN which archive logs to backup.

    C

    RMAN has access to target control file and/or catalog information.

    D

    RMAN looks at the ARCHIVE_LOG_DEST parameter of your target database and backs up all archive logs found.


    正确答案： B
    解析： 暂无解析

  • 第24题：

    多选题
    You are working on an Oracle Database 10g database. You enabled the Flashback Database feature. Which two statements regarding flashback logs are true？ （）
    A

    Flashback logs are not archived.

    B

    Flashback logs are maintained in redo log files.

    C

    Flashback logs are maintained in the Flash Recovery Area.

    D

    Flashback logs are used to maintain Flashback Database related errors.

    E

    Flashback logs need to be cleared manually after you disable Flashback Database.


    正确答案： C,D
    解析： 暂无解析

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