防火类：
You have a read-only tablespace on read-only media. You want to perform a media recovery on the existing data files， but using a backup control file. The backup control file indicates that the status of the read-only tablespace was read/write when the control file was backed up. What should you consider？（） take data files from the read-only tablespace offline before performing a recovery。 recovery using backup control file is not possible， so restore all the files from the last full database backup， and then open the database。 drop the read-only tablespace and re-create the tablespace after recovery。 perform a recovery； status of the tablespace in control file will be changed automatically。
年采出量与地质储量之比称为（） 采油指数。 采出程度。 采油速度。
Which statement is true about Enterprise Manager (EM) express in Oracle Database 12c?（） By default, EM express is available for a database after database creation.。 You can use EM express to manage multiple databases running on the same server.。 You can perform basic administrative tasks for pluggable databases by using the EM express interface.。 You cannot start up or shut down a database Instance by using EM express.。 You can create and configure pluggable databases by using EM express.。
幼儿园各项规章制度的核心（） 部门性规章制度。 全园性规章制度。 会议制度。 岗位责任制。
You are configuring the data source for an Oracle database. You will need to specify a test table for WebLogic to test the status of the database.
Which option should you choose?（）
