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单选题
You have implemented OMF for redo log management. Which of the following choices reflects a log filename that might be employed when OMF is enabled?（）
A
log01.log
B
logORCL01.log
C
1_2.logALTER ROLLBACK SEGMENT
D
ora_1_asdf1234.log
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更多 “单选题You have implemented OMF for redo log management. Which of the following choices reflects a log filename that might be employed when OMF is enabled?（）A log01.log B logORCL01.log C 1_2.logALTER ROLLBACK SEGMENT D ora_1_asdf1234.log” 相关考题
考题
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
考题
Your database is in ARCHIVELOG mode. You have two online redo log groups, each of which contains oneredo member. When you attempt to start the database, you receive the following errors:ORA-00313: open failed for members of log group 1 of thread 1ORA-00312: online log 1 thread 1: ‘D:\REDO01.LOG‘You discover that the online redo log file of the current redo group is corrupted.Which statement should you use to resolve this issue?（）A. ALTER DATABASE DROP LOGFILE GROUP 1;B. ALTER DATABASE CLEAR LOGFILE GROUP 1;C. ALTER DATABASE CLEAR UNARCHIVED LOGFILE GROUP 1;D. ALTER DATABASE DROP LOGFILE MEMBER ‘D:\REDO01.LOG
考题
Which two statements are true about Oracle Managed Files (OMF)?()
A. OMF cannot be used in a database that already has data files created with user-specified directions.B. The file system directions that are specified by OMF parameters are created automatically.C. OMF can be used with ASM disk groups, as well as with raw devices, for better file management.D. OMF automatically creates unique file names for table spaces and control files.E. OMF may affect the location of the redo log files and archived log files.
考题
Your database is in ARCHIVELOG mode. You have two online redo log groups, each of which contains one redo member. When you attempt to start the database, you receive the following errors: ORA-00313: open failed for members of log group 1 of thread 1 ORA-00312: online log 1 thread 1: 'D:/REDO01.LOG' You discover that the online redo log file of the current redo group is corrupted. Which statement should you use to resolve this issue?（）A、ALTER DATABASE DROP LOGFILE GROUP 1;B、ALTER DATABASE CLEAR LOGFILE GROUP 1;C、ALTER DATABASE CLEAR UNARCHIVED LOGFILE GROUP 1;D、ALTER DATABASE DROP LOGFILE MEMBER 'D:/REDO01.LOG
考题
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
考题
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
考题
Your production database is running in the ARCHIVELOG mode and the ARCn process is functional. You have two online redo log groups. Which three background processes would be involved when a log switch happens？ （）A、archivalB、log writerC、database writerD、system monitorE、process monitorF、change tracking writer
考题
If you create your database using Oracle Managed Files （OMF）， what is true？（）A、You must use Oracle predefined names to identify raw partitions that will hold OMF structures. B、You must define directories for two online redo log groups and three copies of the control file. C、If your CREATE DATABASE command fails, any OMF database files that have already been created will be dropped automatically. D、You must use only OMF data files when adding new tablespaces or data files to your database in the future.
考题
You are attempting to clear an unarchived redo log file. In order to manually enact a log switch, which of the following statements is appropriate?（）A、ALTER DATABASE B、ALTER SYSTEM C、ALTER USER D、ALTER REDO LOG
考题
Your database is in ARCHIVELOG mode. You have two online redo log groups，each of which contains one redo member. When you attempt to start the database， you receive the following errors：（）A、 ALTER DATABASE DROP LOGFILE GROUP 1B、 ALTER DATABASE CLEAR LOGFILE GROUP 1C、 ALTER DATABASE CLEAR UNARCHIVED LOGFILE GROUP 1D、 ALTER DATABASE DROP LOGFILE MEMBER ’D:///REDO01.LOG’
考题
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 filesB、 RMAN obsolete backupsC、 multiplexed online redo log filesD、 archived redo logs that have not been copied to tape
考题
You have implemented OMF for redo log management. Which of the following choices reflects a log filename that might be employed when OMF is enabled?（）A、log01.log B、logORCL01.log C、1_2.logALTER ROLLBACK SEGMENT D、ora_1_asdf1234.log
考题
You have configured OMF in your database. You enabled the ALTER DATABASE ENABLE BLOCK CHANGE TRACKING； statement to enable the block change tracking feature. What information will be written in the change tracking file？（）A、 the system change numberB、 the locations of the redo log filesC、 the locations of the datafilesD、 the physical location of all the database changes
考题
You are attempting to increase the checkpoint interval on your database. Each of the following choices will affect the duration and/or frequency of checkpoints, except one. Which is it?（）A、Size of redo logs B、Number of datafiles C、LOG_CHECKPOINT_INTERVAL D、LOG_CHECKPOINT_TIMEOUT
考题
You are working on a database， where you have three redo log groups. When the database is down for a backup， an operating system （OS） user deletes all the redo log files in a group. What will happen when you open your database？（）A、 The instance starts， the database is mounted， but efforts to open the database fail， and an error about the missing redo log group is displayed.B、 Before the instance starts， you receive an error about the missing redo log files of a group.C、 The instance starts and the database opens with an error message written to the alert log file.D、 The instance starts and the database opens because two redo log groups still exist.E、 The instance starts and the database opens， but every attempt to write to redo log files fails with an error.
考题
Your database is in ARCHIVELOG mode. You have two online redo log groups each of which contains one redo member. When you attempt to start the database， you receive the following errors： ORA-00313： open failed for members of log group 1 of thread 1 ORA-00312： online log 1 thread 1： ’D:///REDO01.LOG’ You discover that the online redo log file of the current redo group is corrupted. Which statement should you use to resolve this issue？（）A、 SQLALTER DATABASE DROP LOGFILE GROUP 1；B、 SQLALTER DATABASE CLEAR LOGFILE GROUP 1；C、 SQLALTER DATABASE CLEAR UNARCHIVED LOGFILE GROUP 1；D、 SQLALTER DATABASE DROP LOGFILE MEMBER ’D:///REDO01.LOG’；
考题
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 filesB
RMAN obsolete backupsC
multiplexed online redo log filesD
archived redo logs that have not been copied to tape
考题
单选题You have configured OMF in your database. You enabled the ALTER DATABASE ENABLE BLOCK CHANGE TRACKING； statement to enable the block change tracking feature. What information will be written in the change tracking file？（）A
the system change numberB
the locations of the redo log filesC
the locations of the datafilesD
the physical location of all the database changes
考题
单选题Your database is in ARCHIVELOG mode. You have two online redo log groups, each of which contains one redo member. When you attempt to start the database, you receive the following errors: ORA-00313: open failed for members of log group 1 of thread 1 ORA-00312: online log 1 thread 1: 'D:/REDO01.LOG' You discover that the online redo log file of the current redo group is corrupted. Which statement should you use to resolve this issue?（）A
ALTER DATABASE DROP LOGFILE GROUP 1;B
ALTER DATABASE CLEAR LOGFILE GROUP 1;C
ALTER DATABASE CLEAR UNARCHIVED LOGFILE GROUP 1;D
ALTER DATABASE DROP LOGFILE MEMBER 'D:/REDO01.LOG
考题
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
考题
单选题You are working on a database， where you have three redo log groups. When the database is down for a backup， an operating system （OS） user deletes all the redo log files in a group. What will happen when you open your database？（）A
The instance starts， the database is mounted， but efforts to open the database fail， and an error about the missing redo log group is displayed.B
Before the instance starts， you receive an error about the missing redo log files of a group.C
The instance starts and the database opens with an error message written to the alert log file.D
The instance starts and the database opens because two redo log groups still exist.E
The instance starts and the database opens， but every attempt to write to redo log files fails with an error.
考题
单选题Your database is in ARCHIVELOG mode. You have two online redo log groups，each of which contains one redo member. When you attempt to start the database， you receive the following errors：（）A
ALTER DATABASE DROP LOGFILE GROUP 1B
ALTER DATABASE CLEAR LOGFILE GROUP 1C
ALTER DATABASE CLEAR UNARCHIVED LOGFILE GROUP 1D
ALTER DATABASE DROP LOGFILE MEMBER ’D:///REDO01.LOG’
考题
单选题You are attempting to clear an unarchived redo log file. In order to manually enact a log switch, which of the following statements is appropriate?（）A
ALTER DATABASE B
ALTER SYSTEM C
ALTER USER D
ALTER REDO LOG
考题
单选题Your database is in ARCHIVELOG mode. You have two online redo log groups each of which contains one redo member. When you attempt to start the database， you receive the following errors： ORA-00313： open failed for members of log group 1 of thread 1 ORA-00312： online log 1 thread 1： ’D:///REDO01.LOG’ You discover that the online redo log file of the current redo group is corrupted. Which statement should you use to resolve this issue？（）A
SQLALTER DATABASE DROP LOGFILE GROUP 1；B
SQLALTER DATABASE CLEAR LOGFILE GROUP 1；C
SQLALTER DATABASE CLEAR UNARCHIVED LOGFILE GROUP 1；D
SQLALTER DATABASE DROP LOGFILE MEMBER ’D:///REDO01.LOG’；
考题
单选题You have implemented OMF for redo log management. Which of the following choices reflects a log filename that might be employed when OMF is enabled?（）A
log01.log B
logORCL01.log C
1_2.logALTER ROLLBACK SEGMENT D
ora_1_asdf1234.log
考题
单选题Which of the following dynamic view would you query to identify the online CURRENT redo log group？（）A
V$LOGB
V$LOFHISTC
V$LOGFILED
V$LOG_HISTORY
考题
单选题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
考题
单选题If you create your database using Oracle Managed Files （OMF）， what is true？（）A
You must use Oracle predefined names to identify raw partitions that will hold OMF structures. B
You must define directories for two online redo log groups and three copies of the control file. C
If your CREATE DATABASE command fails, any OMF database files that have already been created will be dropped automatically. D
You must use only OMF data files when adding new tablespaces or data files to your database in the future.
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