单项选择题

Where do you find information about a missing redo log file？（）

A.trace file
B.audit trail
C.control file
D.alert log file
E.event viewer

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单项选择题

Your database is in the NOARCHIVELOG mode. Since last night’s offline backup， the logs in group 1 have been written to twice. This morning， the SYSTEM data file has become corrupted. Up to what point can it be recovered？（）

A.until the last commit
B.cannot be recovered
C.until the last offline backup
D.until the beginning of the last transaction

单项选择题

You have two databases， FINDB and PAYDB， on single operating system and using Optimal Flexible architecture （OFA）. FINDB is functional and is currently being accessed by the users. While starting up the instance for the PAYDB database you get the following error： ORA-01081： cannot start - already running ORACLE - shut it down first Which environmental variable would you set before starting up the PAYDB database to overcome this error？（）

A.ORA_PATH
B.ORACLE_SID
C.ORACLE_BASE
D.ORACLE_HOME
E.LD_LIBRARY_PATH

单项选择题

You have been asked to create three users， PUB1， PUB2 and PUB3， for three newly hired employees and to allocate unlimited quota on their default tablespace PUBLISHER_TBS with no other privileges. After creating the users， which method can you use for granting the required privileges？（）

A.grant CONNECT role to all of the three users
B.grant RESOURCE role to all of the three users
C.grant both CONNECT and RESOURCE role to all of the three users
D.execute ALTER USER .. QUOTA UNLIMITED ON publisher_tbs command for all of the three users
E.create role with UNLIMITED TABLESPACE system privilege and assign the role to all of the three users