Which two statements are true about Oracle Managed Files (OMF)?（） OMF cannot be used in a database that already has data files created with user-specified directions.。 The file system directions that are specified by OMF parameters are created automatically.。 OMF can be used with ASM disk groups, as well as with raw devices, for better file management.。 OMF automatically creates unique file names for table spaces and control files.。 OMF may affect the location of the redo log files and archived log files.。
You have created a baseline metric， DISK_IO_BL， for the disk I/O metrics in your PROD database and you have been getting notifications whenever the database performance degrades. You optimize the database I/O to gain the performance and you decide to remove the baseline metrics. Which method would you use to remove the DISK_IO_BL baseline metrics？（） The baseline， once created， cannot be removed.。 Disable the baseline metrics in the Database Control Manage Metrics page.。 The baseline will be automatically removed once the database performance has been optimized.。 Drop the baseline metrics by usingDBMS_WORKLOAD_REPOSITORY.DROP_BASELINE procedure.。
以下对学习的实质进行的描述中正确的是（） 学习是介乎经验与行为之间的中间变量。 学习所引起的行为或行为潜能的变化是相对持久的。 学习是由身体发育而引起的。 学习是由反复经验而引起的。
二硫化钼是一种新型的（）润滑材料。 液体。 固体。 固溶体。 气体。
Identify three key features of ASM.（） file striping。 allocation unit mirroring。 automatic disk rebalancing。 automatic file size increment。 automatic undo management。
以下关于建设部《建筑业企业资质管理规定实施意见》明确《建筑业企业资质等级标准》中涉及多个专业部门的资质不正确的选项是（）。
