You took the DATA1 tablespace offline at 10：00 A.M. At 12：30

第1题：

Twenty database users are connected to your database. Five of the users are running long queries involving sort operations. The TEMP tablespace is the default temporary tablespace for your database. You are performing offline tablespace backups of individual tablespaces and erroneously execute the following statement：   SQL>ALTER TABLSPACE temp OFFLINE NORMAL；   What is the result of this statement？（）

• A、 The TEMP tablespace is taken offline. The users using the TEMP tablespace for sorting are disconnected after their queries complete.
• B、 The TEMP tablespace is taken offline. The users using the TEMP tablespace for sorting are disconnected and must re-execute their queries.
• C、 The TEMP tablespace is taken offline. The users using the TEMP tablespace for sorting are not disconnected， but these users must re-execute their queries.
• D、 The TEMP tablespace is not taken offline. The users using the TEMP tablespace for sorting are not disconnected， and their queries execute successfully.

第2题：

Which statement will NOT create a tablespace？（）

• A、 CREATE TABLESPACE DATA1 DATAFILE ’+grp1/abc（datafile）’；
• B、 CREATE TABLESPACE DATA1 DATAFILE ’+grp1’；
• C、 CREATE TABLESPACE DATA1 DATAFILE ’+data1（tempfile）’；
• D、 CREATE TABLESPACE DATA1 DATAFILE ’+grp1.256.34359’；

第3题：

第4题：

You are maintaining your database in Oracle10g. On Tuesday at 8：00 A.M.， while starting the database， you discover that all the control files are missing. The backup of the full database was performed on Sunday at 6：00 P.M. Which type of recovery will you perform？（）

• A、 incomplete recovery
• B、 complete recovery
• C、 recovery using the Flashback Database feature
• D、 recovery using the export/import utility

第5题：

You are maintaining your OLTP database in Oracle10g. You have not set the warning level and critical level threshold values for space usage of the DATA1 tablespace. What will be the impact？（）

• A、 No warning level or critical level alert will be generated.
• B、 A warning level alert will never be generated， but a critical level alert will be generated when 97 percent space of the DATA1 tablespace is used.
• C、 A critical level alert will never be generated， but a warning level alert will be generated when 85 percent space of the DATA1 tablespace is used.
• D、 A warning level alert will be generated at 85 percent space usage of the DATA1 tablespace， and a critical level alert is generated at 97 percent space usage of the DATA1 tablespace.

第6题：

Your database is running in ARCHIVELOG mode. The SCOTT.EMP table belongs to the DATA1 tablespace. The junior DBA erroneously runs a script that executes the following statement：   SQL> DROP TABLE SCOTT.EMP PURGE；   After one hour， you are performing the user managed incomplete recovery. Which datafiles will you restore from the last full backup？（）

• A、 the datafiles associated with the SYSTEM tablespace
• B、 the datafiles associated to the DATA1 tablespace
• C、 the datafiles associated to the SYSTEM and DATA1 tablespaces
• D、 all the datafiles in the database

第7题：

You have created a locally managed tablespace by issuing the following command：        CREATE TABLESPACE data1   DATAFILE ’data1_file1.dbf’ SIZE 10M AUTOEXTEND ON MAXSIZE        UNLIMITED；   For the DATA1 tablespace， you have set the warning level alert limit to 70 percent.  In which situation will a warning level alert be generated？（）  

• A、 when 700 KB is used
• B、 when 700 KB is left as free space
• C、 when 7MB is used
• D、 when 7MB is left as free space
• E、 no alert will be generated because an autoextensible datafile is included in the tablespace

第8题：

You executed the following command in Recovery Manager （RMAN） to perform a backup of the DETTBS tablespace：  RMAN> BACKUP TABLESPACE DETTBS;  Under which conditions would this command execute successfully？ （）

• A、The database is in NOMOUNT state.
• B、The database is in ARCHIVELOG mode and the tablespace is online.
• C、The database is in ARCHIVELOG mode and the tablespace is offline.
• D、The database is in NOARCHIVELOG mode and the tablespace is online.
• E、The database is in NOARCHIVELOG mode and the tablespace is offline.

第9题：

You are maintaining your database in Oracle10g. You perform a full user-managed backup every Sunday at 8：00 P.M. Your database is running in ARCHIVELOG mode. On Monday， at 9：00 A.M.， a tablespace is dropped. You decide to perform incomplete recovery to recover the dropped tablespace.  Which two clauses can you use with the RECOVER command？（）

• A、 UNTIL SEQUENCE
• B、 UNTIL SCN
• C、 UNTIL CHANGE
• D、 UNTIL CANCEL

第10题：

You took the DATA1 tablespace offline at 10：00 A.M. At 12：30 P.M.， a schema of a user is dropped and purged from the Recycle Bin. You noticed this at 2：00 P.M. and decided to perform an incomplete recovery.  Which datafiles will you recover？（）

• A、 all the datafiles in the database
• B、 the datafiles associated with the SYSTEM tablespace
• C、 the datafiles associated with the DATA1 tablespace
• D、 all the datafiles in the database except those associated with the DATA1 tablespace