CMS专题
单选题A table was just created on your Oracle database with six extents allocated to it. Which of the following factors most likely caused the table to have so many extents allocated?（）A The value for MINEXTENTS setting B The value for PCTINCREASE setting C
题目
The value for MINEXTENTS setting
The value for PCTINCREASE setting
The value for MAXEXTENTS setting
By default, Oracle allocates six extents to all database objects
相似问题和答案
第1题：
You have a domain that was created and configured with WebLogic 10.3.5. You want to upgrade the domain to use WebLogic 12c. Which Oracle tool must you use to upgrade your domain?（）
- A、Oracle WebLogic Domain Upgrade tool
- B、Smart Update
- C、Smart Upgrade
- D、No tool required, just install WebLogic 12c, update the domain to point to the new WebLogic installation and start your domain.
- E、JDeveloper
正确答案:D
第2题：
A table was just created on your Oracle database with six extents allocated to it. Which of the following factors most likely caused the table to have so many extents allocated?（）
- A、The value for MINEXTENTS setting
- B、The value for PCTINCREASE setting
- C、The value for MAXEXTENTS setting
- D、By default, Oracle allocates six extents to all database objects
正确答案:A
第3题：
While designing your database， you have created the EMPLOYEES table as an index/x7forganized table （IOT）. You want to create a bitmap index on the JOB_ID column to make queries faster. Which task must have been completed so that you are able to create the bitmap index？（）
- A、A primary key must have been created.
- B、A mapping table must have been created.
- C、An overflow tablespace must have been specified.
- D、The PCTTHRESHOLD option must have been specified.
正确答案:B
第4题：
You obtain the results retrieved from the public synonym HR created by the database administrator.
You obtain the results retrieved from the HR table that belongs to your schema.
You get an error message because you cannot retrieve from a table that has the same name as a public synonym.
You obtain the results retrieved from both the public synonym HR and the HR table that belongs to your schema, as a Cartesian product.
You obtain the results retrieved from both the public synonym HR and the HR table that belongs to your schema, as a FULL JOIN.
第5题：
average row size
last analyzed date
size of table in bytes
size of table in database blocks
number of free blocks in the free list
number of extents present in the table
第6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.
正确答案:D
第7题：
Flashback Database is enabled in your Oracle 10g database. One of your database users erroneously purged an important table residing in his schema. The table was purged sometime between 10：00 P.M. and 10：30 P.M. The next day， you decide to flash back the database. Before you flash back the database， you want to ensure that you have all the necessary flashback data. Which dynamic performance view must you use to determine whether you have the required flashback data to recover the purged table？（）
- A、 V$DATABASE
- B、 V$UNDOSTAT
- C、 V$FLASHBACK_DATABASE_LOG
- D、 V$FLASHBACK_DATABASE_STAT
正确答案:C
第8题：
While designing your database， you have created the EMPLOYEES table as an index-organized table （IOT）. You want to create a bitmap index on the JOB_ID column to make queries faster. Which task must have been completed so that you are able to create the bitmap index？（）
- A、A primary key must have been created.
- B、A mapping table must have been created.
- C、An overflow tablespace must have been specified.
- D、The PCTTHRESHOLD option must have been specified.
正确答案:B
第9题：
The copy of the datafile created is stored in the RMAN repository.
The copy of the datafile created can be viewed using the LIST BACKUP command.
The copy of the datafile created using this COPY command can be placed only on the disk.
The copy of the datafile created is similar to the backup of the file created using the BACKUP command.
The copy of the datafile created can be used for recovering the database using the user-managed recovery method.
第10题：
When you start an instance on a high with SQL *Plus dependent listeners and ASM disk groups are automatically started.
When a database instance is started by using the SRVCTL utility and listener startup fails, the instance is still started.
When a database is created by using SQL* Plus, it is automatically added to the Oracle Restart configuration.
When you create a database service by modifying the SERVICE_NAMES initialization parameter, it is automatically added to the Oracle Restart configuration.