In the parameter file of your production database， the FAST_START_MTTR_TARGET parameter is set to 300 to optimize instance recovery. While observing the performance of the database during instance recovery， you find that the redo log files are not sized properly to support this activity. Which two sources could you use to determine the optimal size of the redo log files？（） ["the V$LOG view","the V$DBFILE view","the V$LOGFILE view","the V$INSTANCE_RECOVERY view","Oracle Enterprise Manager Database Control"]
关注教师的（）的内在统一，是学习型组织建设的根本追求。
A user is unable to determine the default system text editor. How can the local administrator assist the user by identifying the default text editor for the system？（） ["Login as the user and run ’echo $ENV’.","Login as root and run the ’env’ command.","Login as root and ’cat \/etc\/environment’.","Login as the user and run the ’env’ command."]
Which statement about the enabling of table compression in Oracle Database 11g is true?（） [" Compression can be enabled at the table, tablespace, or partition level for direct loads only."," Compression can be enabled only at the table level for both direct loads and conventional DML."," Compression can be enabled at the table, tablespace, or partition level for conventional DML only."," Compression can be enabled at the table, tablespace, or partition level for both direct loads and conventional DML."]
胞囊
同心圆理论由谁提出，内容是什么。
