单项选择题
A. The database instance starts，and Oracle sets the default value of SGA_TARGET to the same value as SGA_MAX_SIZE
B. The database instance starts，and Oracle automatically tunes memory and allocates 60 percent to the SGA and 40 percent to the PGA
C. The database instance starts，but Automatic Memory Management is disabled
D. The database instance will not start because you did not specify the PGA_AGGREGATE_TARGET or SGA_TARGET parameter
单项选择题 Your database interface is running. A user SCOTT starts a SQL *Plus session, and issues the following query: SQL> SELECT * FROM sales; Which process would retrieve the result from the database and return it to the client program?（）
单项选择题 Which statement can be an inference from the output?（）
单项选择题 You are using recovery Manager (RMAN) with a recovery catalog to backup up your production database. The backups and the archived redo log files are copied to a tape drive on a daily basis. The database was open and transactions were recorded in the redo logs. Because of fire in the building you lost your servers having the production database and the recovery catalog database. The archive log files generated after the last backup are intact on one of the remote locations. While performing a disaster recovery of the production database what is the next step that you must perform after restoring the data files and applying archived redo logs?（）