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单项选择题You have created a resource plan， DB_PLAN， using DBMS_RESOURCE_MANAGER.CREATE_SIMPLE_PLAN and you want to impose a restriction on utilization of resources by the database users. Which step must be performed before you can start using the resource plan？（）

A. assign users to consumer groups
B. set the resource plan for the instance
C. configure a simple resource plan and specify plan directives
D. configure a complex resource plan and specify plan directives

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1.单项选择题While setting up the threshold for tablespace space usage metrics for one of your tablespaces， you define the critical threshold as 60% and warning threshold as 75%. What would be the result of this setting？（）

A. It would result in an error because the warning threshold cannot be more than the critical threshold.
B. The warning threshold is ignored and alerts would be generated when space usage exceeds the critical threshold.
C. The critical threshold is ignored and alerts would be generated when space usage exceeds the warning threshold.
D. Both threshold values are used and alerts are generated when space usage exceeds the respective threshold values.

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2.单项选择题Manually， you set the consumer group of all of the newly created users to MYDB_GRP. You want the users to be able to change their consumer groups as per the application requirement. What was the first step that was needed in the process to achieve this objective？（）

A. The user must have been granted the DBA role.
B. The user must have been granted the switch privilege as a part of a role.
C. The user must have been granted the Resource Manager administrator privilege.
D. The user must have been granted the switch privilege by using the DBMS_RESOURCE_MANAGER_PRIVS package.

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3.单项选择题By using the transaction identifier provided by（）for a particular row change， you can use the Flashback Transaction Query to see the operation performed by the transaction.

A. Flashback Table
B. Flashback Database
C. Flashback Version Query
D. The RMAN REPORT command
E. The DBA_PENDING_TRANSACTIONS view

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4.单项选择题What effect should the loss of an index tablespace have on an Oracle instance that is running？（）

A. instance hangs
B. instance gets aborted
C. instance continues running
D. instance gets restarted automatically

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5.单项选择题 Why would you use the following FLASHBACK TABLE command？（）
FLASHBACK TABLE emp TO TIMESTAMP （’11：45’.’hh12：mi’）；

A. to undo the changes made to the EMP table since the specified time
B. to restore the EMP table that was wrongly dropped from the database
C. to view the transactions that have modified the EMP table since the specified time
D. to view the changes made to the EMP table for one or more rows since the specified time

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6.多项选择题In the parameter file of your production database， the FAST_START_MTTR_TARGET parameter is set to 300 to optimize instance recovery. While observing the performance of the database during instance recovery， you find that the redo log files are not sized properly to support this activity. Which two sources could you use to determine the optimal size of the redo log files？（）

A. the V$LOG view
B. the V$DBFILE view
C. the V$LOGFILE view
D. the V$INSTANCE_RECOVERY view
E. Oracle Enterprise Manager Database Control

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7.多项选择题You noticed that the index tablespace in your database requires a recovery. However， instead of performing a media recovery， you decided to re-create the indexes in a new tablespace. Which two options would you use to reduce the time it takes to re-create the indexes？（）

A. ONLINE
B. REVERSE
C. PARALLEL
D. COMPRESS
E. NOLOGGING
F. COMPUTE STATISTICS

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8.单项选择题 You want to create a consumer group， GROUP1， and you execute the following command in the command-line interface：
SQL> EXEC DBMS_RESOURCE_MANAGER.CREATE_CONSUMER_GROUP （CONSUMER_GROUP =>’group1’， COMMENT => ’New Group’）；
This command errorsout displaying the following message：
ERROR at line 1：
ORA-01031： insufficient privileges
ORA-06512： at "SYS.DBMS_RMIN"， line 115
ORA-06512： at SYS.DBMS_RESOURCE_MANAGER"， line 108 ORA-06512： at line 1
What action would you take to overcome this error？（）

A. grant SYSDBA to the user
B. grant SYSOPER to the user
C. grant the RESOURCE role to the user
D. use the GRANT command to grant the ADMINISTER_RESOURCE_MANAGER privilege to the use
E. grant the ADMINISTER_RESOURCE_MANAGER privilege to the user by using the DBMS_RESOURCE_MANAGER_PRIVS package

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9.多项选择题Which two statements are correct regarding the Oracle Flashback Drop feature？（）

A. Recycle bin exists for the tables only in non-SYSTEM， locally managed tablespaces.
B. You can flash back a dropped table provided row movement has been enabled on the table.
C. If you drop an index before dropping its associated table， then the recovery of the index is not supported when you flash back the dropped table.
D. When you execute the DROP TABLESPACE？ INCLUDING CONTENTS command， the objects in the tablespace are places in the recycle bin.
E. When a dropped table is moved to the recycle bin， only the table is renamed to a system-generated name； its associated objects and constraints are not renamed.
F. If you drop a table that is protected by the recycle bin， then associated bitmap-joined indexes and materialized view logs are also stored in the recycle bin.

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10.单项选择题You lost a temporary file that belongs to the default temporary tablespace in your database. From the options provided， which approach would you take to solve the problem？（）

A. flash back the database
B. import the temporary tablespace from the last export
C. restore all the data files and temporary files from the last full database backup and perform a recovery
D. not perform a recovery， but create a new temporary tablespace， make it the default temporary tablespace and then drop the old tablespace

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