单选题You want to check the EMP table in the user， Scott’s schema for block corruption. You also want to fix the corrupted blocks， if any. How will you accomplish the required task？（）A by using the ANALYZE utilityB by using the DBVERIFY utilityC by using the

第1题：

You are using the DBVERIFY utility to check the datafiles for any block corruption. You want to write the output of the dbv command to a file not to the screen.  Which parameter of the DBVERIFY utility will you use？（）

• A、 FILE
• B、 PARFILE
• C、 LOGFILE
• D、 FEEDBACK

第2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3题：

You issued the following command to analyze the SCOTT.EMP table for block corruption：   ANALYZE TABLE SCOTT.EMP VALIDATE STRUCTURE；  You received the following error：   ORA-01578： ORACLE data block corrupted  （file # %s， block # %s）   How will you resolve the block corruption problem？（）

• A、 by using the DBMS_REPAIR package
• B、 by using the DB_BLOCK_CHECKING parameter
• C、 by using the DBVERIFY utility
• D、 will not be completely resolved until the hardware fault is corrected

第4题：

You observe that in your PROD database， customer information is being modified by some unauthorized users. You want to keep track of all of the transactions happening on the table using PL/SQL. Which type of PL/SQL subprogram or construct would you use to accomplish this task？（）

• A、functions
• B、packages
• C、procedures
• D、database triggers
• E、anonymous PL/SQL block

第5题：

You want to implement a master-detail relation between data blocks based on object tables. How would you do this? （）

• A、Create the relation manually and coordinate the blocks using triggers. 
• B、Base the relation on a REF pointer using the Data Block Wizard. 
• C、Base the relation on a foreign key using the Data Block Wizard. 
• D、This task is not possible because master-detail relations can be implemented only for blocks based on relation tables.

第6题：

You are a network administrator for ExamSheet.net's Windows 2000 network.  You use a user account named User1 to log on tot a Windows 2000 Professional computer. The computer is used by different students in a classroom. User1 does not have administrative rights. However, you prefer to use this account for your daily activities. Using the Task Scheduler you schedule a task to run a command file named AddUsers.cmd that automatically adds six more student user accounts. You configure the task to run as the administrator account.  After the task was scheduled to have run you open the Task Scheduler and discover a status of "Could not start" for the task. You also discover account logon failure audit events in the computer's Security log.You want the scheduled task to successfully run AddUsers.cmd. You want to accomplish this with the least amount of administrative effort.  What should you do?（）

• A、Schedule the task using theATcommand.
• B、Reenter the password for the administrator account using the Task Scheduler.
• C、Log on with an administrative account and reschedule the task.
• D、Log on by using the local Administrator account. Then schedule the task to run under User1.

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第13题：

You were recently hired by Certkiller .com as a database administrator. You are asked to find out whether the currently functional listener process， named L1， has been password protected or not. You are not familiar with the file system of the new organization. How would you accomplish the task？（）

• A、 by using the STATUS command of the Listener control utility
• B、 by using the STATUS L1 command of the Listener control utility
• C、 by using the SHOW RULES command of the Listener control utility
• D、 by using the SET PASSWORD command of the Listener control utility
• E、 by searching for the PASSWORD_LISTENER entry in the listener.ora file

第14题：

There was media failure and you need to check the data files for any block corruption. Which option would you use to create a report on any corruptions found within the database？（） 

• A、the DBNEWID utility
• B、the DBVERIFY utility
• C、the ANALYZE command
• D、the RMAN REPORT command
• E、the RMAN CROSSCHECK command
• F、the CHECK_OBJECT procedure of the DBMS_REPAIR package

第15题：

You issue the following statement：   SQL> SELECT FIRSTNAME， LASTNAME FROM HR.EMPLOYEE；  You receive the following error：         01578： ORACLE data block corrupted （file# 6， block # 54）        ORA-01110 ： data file 6： ’u01/oracle/oradata/data1.dbf’   How will you resolve this problem of data block corruption by reducing the mean time to recover （MTTR）？（）

• A、 by using the DBMS_REPAIR package
• B、 by using the DBVERIFY utility
• C、 by using Block Media Recovery
• D、 by issuing the ANALYZE TABLE HR.EMPLOYEES VALIDATE STRUCTURE command

第16题：

You want to check all the data blocks being written to the datafiles by analyzing the data on each block every time the DBWn process writes.   Which action will you perform to check the data blocks？（）

• A、 Set the value of the DB_BLOCK_CHECKING initialization parameter to TRUE
• B、 Use the ANALYZE utility.
• C、 Use the DBVERIFY utility.
• D、 Use the DBMS_REPAIR package.

第17题：

You want to enable the user， Scott， to change to the GRP1 consumer group by issuing the following code：        SQL> EXEC DBMS_SESSION.SWITCH_CURRENT_CONSUMER_GROUP  （’SCOTT’，       ’GRP1’， FALSE）；   How will you grant the switch privilege to the user， Scott？（）  

• A、 by using the DBMS_SESSION package
• B、 by granting the DBA role
• C、 by using the DBMS_RESOURCE_MANAGER package
• D、 by using the DBMS_RESOURCE_MANAGER_PRIVS package

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