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？（） Configure Java Pool to cache the java objects.。 Configure Streams Pool to enable parallel processing.。 Increase Shared Pool size to cache more PL/SQL objects.。 Increase Database Buffer Cache size to increase cache hits.。 Configure Large Pool to be used by RMAN and shared server.。 Increase the total System Global Area （SGA） size to increase memory hits.。
煤的工业分析项目有（）、（）、（）、（）、（）。
Why would you execute the report obsolete command？（） To list all backups that were no longer available for restore operations。 To list all backups that had aged beyond the RMAN retention criteria。 To list all backup set pieces listed in control-file or recovery-catalog metadata that are not on the backup media。 To list all datafiles that are no longer part of the database and thus do not need to be backed up。 To list all archived redo logs that are no longer needed for any database recovery。
An administrator has a legacy cluster running version 4.5/ES and would like to update to version 5.5.Which of the following is a valid upgrade path？（） 1. Upgrade from 4.5 to 5.12. Upgrade from 5.1 to 5.5。 1. Upgrade from 4.5 to 5.22. Upgrade from 5.2 to 5.5。 1. Upgrade from 4.5 to 5.32. Upgrade from 5.3 to 5.5。 1. Upgrade from 4.5 to 5.4.12. Upgrade from 5.4.1 to 5.5。
学情分析是教师重建（）的必然要求，也是提高课堂教学有效性的前提保障，还是提升教师实践研究能力的基本途径。
Which describes the operation required to move to a new release level of system firmware？（）
