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多选题
In your production database, you have observed that the database server performance degrades whenever there is a switch between the log groups. On further investigation, you find that the database is running in ARCHIVELOG mode and the archived log files are being written to the same disk that is used to store the redo log members.  Which two actions would you take to improve the performance of the database server?()
A

increase the size of the redo log buffer

B

increase the number of redo log groups

C

increase the number of log writer processes

D

increase the number of ARCn processes

E

change the appropriate LOG_ARCHIVE_DEST_n parameter to place the archived log files in a separate location


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更多 “多选题In your production database, you have observed that the database server performance degrades whenever there is a switch between the log groups. On further investigation, you find that the database is running in ARCHIVELOG mode and the archived log files are being written to the same disk that is used to store the redo log members.  Which two actions would you take to improve the performance of the database server?()Aincrease the size of the redo log bufferBincrease the number of redo log groupsCincrease the number of log writer processesDincrease the number of ARCn processesEchange the appropriate LOG_ARCHIVE_DEST_n parameter to place the archived log files in a separate location” 相关考题
考题 You are using a recovery catalog to maintain Recovery Manager (RMAN) backup information for yourproduction database. You have registered your production database and are performing regular backups.Because of a new requirement you have added a few new tablespaces to your production database and youwant them to be included in backups.Identify two options for completing this task. ()(Choose two.)A. Reregistering the target database in recovery catalogB. Transporting the new tablespaces to the recovery catalog databaseC. Syncronizing the recovery catalog with the target database control fileD. Performing a fresh backup of the target database to include the new data files in the catalog database

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考题 单选题You have a large amount of historical data in an operating system file. Some analysts in your organization need to query this data. The file is too large to load into your current database. Which is the most effective method to accomplish the task?()A Upgrade the hardware/memory to accommodate the data.B Load the data into your database by using the PARALLEL clause.C Give analysts DBA privilege, so that they can query DBA_EXTERNAL_TABLES.D Use an external table so you can have the metadata available in your database, but leave the data in the operating system files.

考题 单选题You are using flat files as the data source for one of your data warehousing applications. You plan to move the data from the flat file structures to an Oracle database to optimize the application performance. In your database you have clustered tables.  While migrating the data, you want to have minimal impact on the database performance and optimize the data load operation. Which method would you use to load data into Oracle database?()A use the external table populationB use the Oracle Data Pump export and import utilityC use the conventional path data load of SQL*Loader utilityD use the direct path data load of Oracle export and import utility

考题 单选题In Recovery Manager (RMAN), you are taking image copies of the data files of your production database and rolling them forward at regular intervals. You attempt to restart your database. After a regular maintenance task, you realize that one of the data files that belongs to the USERS tablespace is damaged and you need to recover the data file by using the image copy. Because a media failure caused the data file to be damaged, you want to place the data file in a different location while restoring the file. Which option must you consider for this task?()A using only the RMAN SWITCH command to set the new location for the data fileB placing the database in the MOUNT state for the restore and recovery operations.C using an RMAN RUN block with the SET NEWNAME and then the SWITCH command.D configuring two channels: one for the restore operation and the other for the recovery operation

考题 单选题You work as a database administrator for Certkiller .com. Your database is in NOARCHIVELOG mode. The database has been configured with three redo logs groups, and there have been five log switches. You lost one non-system-critical data file from your database.  Which method would you use to recover the data file?()A Restore all the data files and open the databaseB Create the data file and performtablespacerecoveryC No need to restore any file, just recover the databaseD Restore only the system data file and recover the databaseE Restore only lost date file and performtablespacerecovery

考题 多选题You are using a recovery catalog to maintain Recovery Manager (RMAN) backup information for your production database. You have registered your production database and are performing regular backups. Because of a new requirement you have added a few new tablespaces to your production database and you want them to be included in backups.  Identify two options for completing this task.()AReregistering the target database in recovery catalogBTransporting the new tablespaces to the recovery catalog databaseCSyncronizing the recovery catalog with the target database control fileDPerforming a fresh backup of the target database to include the new data files in the catalog database