Which statements are true regarding the USERS tablespace（）
A.A bitmap is used to record free extents.
B.Free extents information is managed within the tablespace.
C.Free extents information is managed in the SYSAUX tablespace.
D.The data dictionary tables are updated when extents are allocated or deallocated
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You want to create a tablespace to contain objects with block size 16 KB. But while configuring thestorage you find that the block size that you can provide is only 8 KB.
Which configuration could have enabled the block selection of 16 KB（）
A.choosing the extent allocation type to uniform
B.choosing the Segment Space Management option to manual
C.setting autoextension on for the data file mentioned for the tablespace
D.setting the DB_16K_CACHE_SIZE parameter for the database instance to a nonzero value
A.when the tablespace is online
B.when the tablespace has segments with data in it
C.when the tablespace is a default permanent tablespace for the database
D.when the tablespace contains a table that is currently being used by transactions
E.when the tablespace contains undo data that is needed to rollback an uncommitted transaction
Which two statements are true regarding the MRKT tablespace（）
A.No more data files can be added to the tablespace.
B.Segment space is managed by free lists in the tablespace.
C.A user created without being assigned a default tablespace uses this tablespace.
D.The tablespace can be dropped with the current setting with segments present in it.
You execute the following command to change the status of the SALES tablespace：
SQL> ALTER TABLESPACE sales OFFLINE；
Which statements describe the effect of the command（）
A.The tablespace would require recovery to go back online.
B.A checkpoint is taken on all data files that are associated with the SALES tablespace.
C.The sessions that subsequently try to access the objects in the SALES tablespace receive an error.
D.The new status of the SALES tablespace is recorded in the control file when the database instance is closed.
You execute a command to resize a data file， sales.dbf， of size 200 MB in your database： ALTER DATABASE DATAFILE ’/remorse/sales.dbf’ RESIZE 150M；
Which statement is true about this command（）
A.The command must be issued in MOUNT state.
B.The command succeeds only if the data file is offline.
C.The command must be issued when the database is in the archivelog mode.
D.The command succeeds if no extent in the tablespace is currently allocated above the 150 MB boundary of the file.
Which statement is true regarding the effect of this command on the transaction in Scott’s session（）
A.The command fails as a transaction is still pending.
B.The transaction in Scott’s session is rolled back and the tablespace becomes read-only.
C.The command waits and the user SCOTT can execute data manipulation language （DML） statements only as part of the current transaction.
D.The command hangsuntil all transactions on the objects in the tablespace commit or rollback， and then the tablespace is placed in read-only mode.
A.Undo tablespace
B.USERS tablespace
C.SYSAUX tablespace
D.SYSTEM tablespace
E.Temporary tablespace
A.when row directories need more row entries
B.when there is row migration in the data block
C.when there is an increase in the PCTFREE value for the data block
D.when more transaction slots are required than are initially configured
A.It can span multiple databases.
B.It can consist of multiple data files.
C.It can contain blocks of different sizes.
D.It can contain segments of different sizes.
E.It can contain a part of a nonpartitioned segment.
Your database is configured in shared server mode. However， your senior DBA asks you to modifythe value of the PRIVATE_SGA limit in the profile of the users.
What could be the reason for this（）
A.to limit the User Global Area （UGA） memory allocated to a session from the SGA
B.to limit the amount of memory to be used for the dispatcher queue of a session in SGA
C.to limit the amount of memory to be used for the request pool in System Global Area （SGA）
D.to control the amount of memory allocated in SGA for the local variables for each shared server process
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Why does performance degrade when many UPDATE， INSERT， or DELETE statements are issued on a tablethat has an associated Bitmap index（）
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View the Exhibit to examine the output of the DBA_OUTSTANDING_ALERTS view. After 30 minutes, youexecuted the following command:SQL> SELECT reason,metric_value FROM dba_outstanding_alerts; REASON METRIC_VALUE------------------------------ ---------------------- Tablespace [TEST] is [28 perce 28.125 nt] fullWhat could be the reason for the elimination of the other rows in the output（）
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