单选题You executed the following SQL statement to shrink the EMPLOYEES table segment stored in the EXAMPLE tablespace: ALTER TABLE employees SHRINK SPACE CASCADE; Which statement is correct in this scenario?（）A The EMPLOYEES table will be changed to read-onl

第1题：

You are shrinking the SCOTT.EMP table by executing the ALTER TABLE SCOTT.EMP SHRINK SPACE CASCADE statement. What is a prerequisite for shrinking the SCOTT.EMP table？（）

• A、 You must enable the block change tracking feature.
• B、 You must have enable the flashback feature.
• C、 You must use the OMF in your database.
• D、 You must define the tablespace of the SCOTT.EMP table for automatic segment space management.

第2题：

The EMPLOYEES table is stored in the SAMPLE tablespace.  The corresponding IPK_EMP index for the EMPLOYEES table’s primary key is stored in the INDX tablespace.  Out of 12 partitions， only partition P1 of the SALES table is stored in the SAMPLE tablespace.  Which object will be exported by this command？（）   exp system/manager tablespaces=SAMPLE

• A、Only the EMPLOYEES table.
• B、Only the EMPLOYEES table and its corresponding primary key index.
• C、The EMPLOYEES table and partition P1.
• D、The EMPLOYEES table， IPK_EMP index， and the SALES table.

第3题：

In one of your online transaction processing （OLTP） applications， users are manipulating and querying a database table simultaneously. From the Segment Advisor， you find that one of the tables is highly fragmented and you want to shrink the table immediately without affecting the currently active queries.  Which option would you use with the ALTER TABLE command to achieve this objective？（）

• A、REBUILD
• B、CASCADE
• C、TRUNCATE
• D、ROW MOVEMENT
• E、SHRINK SPACE COMPACT
• F、SHRINK SPACE CASCADE

第4题：

You work as a database administrator for Certkiller .com. Because of space constraints， you decided to manually shrink the table. You executed the ALTER TABLE ....SHRINK SPACE statement to shrink the space and you receive an error as follows：  ERROR at Line 1：  ORA-10635： Invalid segment ortablespacetype What could be the reason？（）

• A、The table is partitioned
• B、The table name is wrong.
• C、It is an index-Organized table （IOT）
• D、The table is stored in locally managedtablespace.
• E、The table is stored in atablespacewhere segment space is managed manually.

第5题：

You work as a database administrator for Supportcenter.cn. Because of space constraints， you decided to manually shrink the table. You executed the ALTER TABLE ....SHRINK SPACE statement to shrink the space and you receive an error as follows：   ERROR at Line 1：   ORA-10635： Invalid segment or tablespace type   What could be the reason？ （）

• A、The table is partitioned
• B、The table name is wrong.
• C、It is an index-Organized table （IOT）
• D、The table is stored in locally managedtablespace.
• E、The table is stored in atablespacewhere segment space is managed manually.

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第13题：

Examine the following commands executed in your database： SQL> ALTER SESSION RECYCLEBIN=ON； Session altered  SQL> CREATE TABLE emp TABLESPACE tbsfd AS SELECT * FROM hr.employees；  Table created.  Further， you executed the following command to drop the table：  SQL> DROP TABLE emp； Table dropped.  What happens in this scenario？ （）

• A、The table is moved to the SYSAUX tablespace.
• B、The table is moved to the SYSTEM tablespace.
• C、The table is removed from the database permanently.
• D、The table is renamed and remains in the TBSFD tablespace.

第14题：

You created the DEPT table by using the following command：   CREATE TABLE scott.dept   （deptno NUMBER（3），   dname VARCHAR2（15），   loc VARCHAR2（15） ）   STORAGE （INITIAL 100K NEXT 50K  MAXEXTENTS 10 PCTINCREASE 5  FREELIST GROUPS 6 FREELISTS 4）；You are required to shrink the DEPT table. While performing the shrink operation， you want to ensure that the recovered space is returned to the tablespace in which the DEPT table is stored. You do not want to shrink the indexes created on the DEPT table. What will you do to shrink the SCOTT.EMP table？（）

• A、 Issue the ALTER TABLE SCOTT.DEPT SHRINK SPACE COMPACT； statement.
• B、 Issue the ALTER TABLE SCOTT.DEPT SHRINK SPACE； statement.
• C、 Issue the ALTER TABLE SCOTT.DEPT SHRINK SPACE CASCADE； statement.
• D、 You cannot shrink the SCOTT.EMP table.

第15题：

Examine the following command：   SQL> ALTER TABLE booking SHRINK SPACE COMPACT；   Which activity is performed when the preceding command is executed？（）

• A、 The shrink operation touches every block in the BOOKING table
• B、 The high-water mark （HWM） for the BOOKING table is shifted from its original position
• C、 The progress of the shrink operation is saved in the bitmap blocks of the BOOKING table
• D、 The data manipulation language （DML） triggers on the BOOKING table are executed because the shrink operation is internally handled by the INSERT/DELETE operation

第16题：

You executed the following SQL statement to shrink the EMPLOYEES table segment stored in the EXAMPLE tablespace: ALTER TABLE employees SHRINK SPACE CASCADE; Which statement is correct in this scenario?（）

• A、The EMPLOYEES table will be changed to read-only mode during the shrink operation.
• B、The indexes created on the EMPLOYEES table will need to be rebuilt after the shrink operation is over.
• C、The shrink behavior will be cascaded to all dependent segments of the table that support a shrink operation.
• D、Data manipulation language (DML) operations will not be possible on the EMPLOYEES table during the COMPACTION phase of the shrink operation.

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