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
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问题:单选题You work as a database administrator for Certkiller .com. You find that users with DBA role are using more CPU resources than what is allocated in their profiles. Which action would you take to ensure that resources limits are imposed on these users? ()A Assign the DEFAULT profile to the usersB Set the RESOURCE_LIMIT parameter to TRUE in the parameter fileC Create a new profile with CPU restrictions and assign it to the usersD Specify the users as members of the DEFAULT_CONSUMER_GROUPE Revoke the DBA role and grant CONNECT and RESOURCE role to the users
问题:多选题Which two statements regarding the LOGGING clause of the CREATE TABLESPACE... statement are correct?()AThis clause is not valid for a temporary or undo tablespace.BIf the tablespace is in the NOLOGGING mode,no operation on the tablespace will generate redo.CThe tablespace will be in the NOLOGGING mode by default,if not specified while creating a tablespace.DThe tablespace-level logging attribute can be overridden by logging specifications at the table,index, materialized view,materialized view log,and partition levels.
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You want to perform a backup of your database to tape. Which backup format can you use?()A backup set onlyB image copy onlyC only user-managed backupD both image copy and backup setE only incremental image copy backup
问题:单选题You executed the STARTUP MOUNT command to start your database. For which database operation do you need to start the database in the MOUNT state?()A renaming the control filesB dropping a user in your databaseC enabling or disabling redo log archivingD dropping a tablespace in your databaseE re-creating the control files, after you lost all the control files in your database
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: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
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You are using flat files as the data source for one of your data warehousing applications. You plan to move the data from the flat file structures to an Oracle database to optimize the application performance. In your database you have clustered tables. While migrating the data, you want to have minimal impact on the database performance and optimize the data load operation. Which method would you use to load data into Oracle database?()A use the external table populationB use the Oracle Data Pump export and import utilityC use the conventional path data load of SQL*Loader utilityD use the direct path data load of Oracle export and import utility
问题:多选题You require the Oracle server to manage the undo segments and space among various active sessions automatically. You created an undo tablespace, UNDO_TBS1, in your database. Which two additional steps would you perform to achieve this?()ASet the UNDO_RETENTION parameter to 900 or more.BCreate an initial undo segment in the undo tablespace.CEnable the retention guarantee for the undo tablespace.DSet the UNDO_TABLESPACE parameter to UNDO_TBS1.ESet the UNDO_MANAGEMENT initialization parameter to AUTO.
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:多选题You work as a database administrator for Supportcenter.cn. Your database is in the MOUNT state and you execute the following command to open it ALTER DATABASE OPEN; What two actions are performed as a result of this command?()AAll control files are openedBAll redo files are openedCThe password file is openedDThe parameter file is openedEAll online data files are opened
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: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:单选题Redo log files are not multiplexed in your database. Redo log blocks are corrupted in group 2, and archiving has stopped. All the redo logs are filled and database activity is halted. Database writer has written everything to disk. Which command would you execute to proceed further?()A RECOVER LOGFILE BLOCK GROUP 2;B ALTER DATABASE DROP LOGFILE GROUP 2;C ALTER DATABASE CLEAR LOGFILE GROUP 2;D ALTER DATABASE RECOVER LOGFILE GROUP 2;E ALTER DATABASE CLEAR UNARCHIVED LOGFILE GROUP 2;
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You work as a database administrator for Certkiller .com. In your production database, the size of Database Buffer Cache needs to be increased immediately for the current as well as future instances of the database. The Oracle instance has been configured to accommodate any changes in the size of the memory structures. At this is production database, you want to accomplish this task with no impact on the user’s connections. Which activity must you have completed before accomplishing this task?()A You must have started the database instance in restricted mode.B You must have started the database instance inNORMALmode.C You must have started the database instance with server parameter file.D You must have started the database instance but must not have mounted.E You must have started the database instance but must not have opened.