问题：单选题The ST_INFO master table has millions of rows that are updated very rarely. It has a STATE_CODE column that contains the value for 25 states. The table is frequently queried on the STATE_CODE column. Which type of index would you suggest to improve the query performance？（）A B-treeB bitmapC reverse keyD function based
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问题：单选题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 functionsB packagesC proceduresD database triggersE anonymous PL/SQL block
问题：多选题In which two cases would you perform only consistent backup？（）AYou are working on a database where downtime is not tolerated.BYou are working on a database where downtime can be tolerated.CYou are working on a database that operates in ARCHIVELOG mode.DYou are working on a database that operates in NOARCHIVELOG mode.EYou are working on a database where all the tablespaces are locally managed.FYou are working on a database where control files and redo log files are multiplexed.GYou are working on a database where control files and redo log files are not multiplexed.
问题：多选题The following are the details of your database： Instance name：test Host name：tech1.us.oracle.com IP address：145.33.230.186 Enterprise Manager Console HTTP Port number：5500 You started the database instance and you want to manage your database remotely with Enterprise Manager through a Web browser. Which two URLs would you use to access the Database Control？（）Ahttp：//145.33.230.186：5500/emBhttp：//www.145.33.230.186：5500/emChttp：//tech1.us.oracle.com：5500/emDhttp：//test.145.33.230.186：5500/emEhttp：//test.tech1.us.oracle.com：5500Fhttp：//www.tech1.us.oracle.com：5500/emGhttp：//test.tech1.us.oracle.com：5500/em
问题：单选题You have a listener process， L1， currently listening for the connections to the PROD and ADMIN databases. You create a new database， PAY， using CREATE DATABASE.. command. You have not enabled dynamic instance registration. You modified the LISTENER.ORA file manually to include PAY database for L1 listener process. Which command of Listener control utility （LSNRCTL） would you use to enable L1 process to start listening for the connections to the PAY database without disrupting any existing database communications？（）A STARTB RELOADC RESTARTD REFRESHE START L1F RELOAD L1G RESTART L1H REFRESH L1
问题：单选题You find that the database performance degrades while you backup the PROD database using Recovery Manager （RMAN）. The PROD database is running in shared server mode. The database instance is currently using 60% of total operating system memory. You suspect the shared pool fragmentation to be the reason. Which action would you consider to overcome the performance degradation？（）A Configure Java Pool to cache the java objects.B Configure Streams Pool to enable parallel processing.C Increase Shared Pool size to cache more PL/SQL objects.D Increase Database Buffer Cache size to increase cache hits.E Configure Large Pool to be used by RMAN and shared server.F Increase the total System Global Area （SGA） size to increase memory hits.
问题：单选题In your database， UNDO_RETENTION has been set to 600 sec and UNDO tablespace is configured for RETENTION GUARANTEE. Which statement regarding RETENTION GUARANTEE is true？ （）A Undo data is retained until the next full database backup.B No committed undo data will be overwritten for 10 minutes.C Committed undo data will be kept forever if not overwritten within 600 seconds.D Guarantees that requested undo information are available until the instance is shut down.
问题：单选题You work as a database administrator for Certkiller .com. As a result of performance analysis， you created an index on theprod_namecolumn of the Certkiller prodtable， which contains about ten thousand rows. Later， you updated a product name in the table. How does this change affect the index？（）A A leaf will be marked as invalid.B An update in a leaf row takes place.C The index will be updated automatically at commit.D A leaf row in the index will be deleted and inserted.E The index becomes invalid when you make any updates
问题：单选题Where do you find information about a missing redo log file？（）A trace fileB audit trailC control fileD alert log fileE event viewer
问题：单选题In your database server， the parameter PLSQL_OPTIMIZE_LEVEL has been set to 2. What would this setting achieve？（）A It degrades the run time and compiler performance.B It provides better run time and compiler performance.C It provides better optimization of the statement during parse time.D It forces the rule based optimizer to be used for statement optimization.E It provides better run time performance but slightly degraded compiler performance.F It provides better run time performance but slightly degraded run time performance.
问题：单选题It is a holiday and no transactions are being performed on the database. You took a consistent backup of your database without using Recovery Manager （RMAN）. How would you make use of this consistent backup in RMAN？（）A cannot be used in RMANB by starting up the database againC by using the CATALOG command of RMAND by using the RECOVER CATALOG command in RMANE by re-creating the target control file to rebuild the RMAN repository
问题：单选题You execute the following command to audit the database activities： SQL> AUDIT DROP ANY TABLE BY scott BY SESSION WHENEVER SUCCESSFUL； What is the effect of this command？（）A One audit record is created for the whole session if user SCOTT successfully drops one or more tables in his session.B One audit record is created for every session when any user successfully drops a table owned by SCOTT.C One audit record is created for each successful DROP TABLE command executed by any user to drop tables owned by SCOTT.D One audit record is generated for the session when SCOTT grants the DROP ANY TABLE privilege to other users in his session.E One audit record is created for each successful DROP TABLE command executed in the session of SCOTT.
问题：单选题The SAVE_AMT column in the ACCOUNTS table contains the balance details of customers in a bank. As part of the year/x7fend tax and interest calculation process， all the rows in the table need to be accessed. The bank authorities want to track access to the rows containing balance amounts exceeding $200，000， and then send an alert message to the administrator. Which method would you suggest to the bank for achieving this task？（）A implementing valuebased auditing by using triggersB implementing finegrained auditing with audit condition and event handlerC performing standard database auditing to audit object privileges by setting the AUDIT_TRAIL parameter to EXTENDEDD performing standard database auditing to audit SQL statements with granularity level set to ACCESS
问题：单选题In the instance of the PROD database， the checkpoint （CKPT） process runs after every minute. A database user updates the rows of the ORDERS table. Because of the configuration， the CKPT process gets initiated before the user commits the transaction. What would happen to the modified blocks when the CKPT process is started？（）A The modified blocks would be written to the data files.B The modified blocks would be written to the temp files.C The modified blocks would be written to the control file.D The modified blocks would be written to the redo log files.E The modified blocks would be written to the archived redo log files.F The modified blocks would be retained in the database buffer cache.
问题：单选题You have two databases， FINDB and PAYDB， on single operating system and using Optimal Flexible architecture （OFA）. FINDB is functional and is currently being accessed by the users. While starting up the instance for the PAYDB database you get the following error： ORA-01081： cannot start - already running ORACLE - shut it down first Which environmental variable would you set before starting up the PAYDB database to overcome this error？（）A ORA_PATHB ORACLE_SIDC ORACLE_BASED ORACLE_HOMEE LD_LIBRARY_PATH
问题：多选题In your Oracle 10g database ， you have scheduled a job to update the optimizer statistics at 05：00 pm every Friday. The job has successfully completed. Which three pieces of information would you check to confirm that the statistics have been collected？（）Aaverage row sizeBlast analyzed dateCsize of table in bytesDsize of table in database blocksEnumber of free blocks in the free listFnumber of extents present in the table
问题：多选题Which two statements about bigfile tablespaces are true？ （）AThe bigfile tablespace have only one data file.BThe segment space management is automatic.CThe extent management is dictionary managed.DThe database can have only one bigfile tablespace.EThe bigfile tablespace can be converted to a smallfile tablespace.
问题：单选题In your database， the users SYS and SYSTEM have been assigned the profiles， ADMIN_PROF1 and ADMIN_PROF2， respectively. The rest of the database administrators are assigned the profile ADMIN_PROF3. You create a profile， USER_PROF， and assign it to the application user， Adams. After a week you realize that the profile is no longer required and you decide to drop it. What will Adam’s profile be after the USER_PROF profile has been dropped？（）A no profilesB the default profileC same as the profile of SYS userD same as the profile of SYSTEM user
问题：单选题You execute the following set of commands to create a database user and to grant the system privileges in your production environment. SQL> CREATE USER user01 IDENTIFIED BY oracle DEFAULT TABLESPACE tbs1 TEMPORARY TABLESPACE temp PROFILE default / SQL> GRANT create session， create table TO user01； While executing the command to create a table， the user gets the following error message and the CREATE TABLE.. command fails. ERROR at line 1： ORA-01950： no privileges on tablespace What could be the possible reason for this error message？（）A The tablespace TBS1 is full.B The user is not the owner of the SYSTEM tablespace.C The user does not have quota on the TBS1 tablespace.D The user does not have sufficient system privileges to create table in the TBS1 tablespace.E The user does not have sufficient privileges to create table on the default permanent tablespace.
