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
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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. You decided to manage client and server connections using Local Naming method in Supportcenter.cn. When you try to connect to the database you get the following error: ERROR: ORA-12154:TNS:couldnot resolve service name Which network configuration files would you look into to resolve this error?()Asnmp.oraBnames.oraCspfile.oraDsqlnet.oraElistener.oraFtnsnames.ora
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 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You are working on an online transaction processing (OLTP) system. You notice that a PL/SQL procedure got executed twice at 2) 00 p.m. This has incorrectly updated the EMP_SAL table. How would you revert the table to its state at 2) 00 p.m.?()A Perform point-in-time recovery to 2: 00 p.m.B Use Flashback Table feature to revert the changes.C Restore the entire database from the recent backup and open it.D Issue the rollback statement with system change number (SCN).
问题:多选题You work as a database administrator for Supportcenter.cn. You want to create your database with the automatic undo management feature enable.Which two tasks must you perform to achieve this?()ASet the UNDO_RETENTION parameter to AUTO.BCreate an initial undo segment in undotablespace.CSet the UNDO_RETENTION parameter to 900 or moreDSet the initialization parameter UNDO_MANAGEMENT to AUTOESet the UNDO_MANAGEMENT parameter to the name of an undotablespace
问题:多选题Your database is in NOARCHIVELOG mode. After which two operations you should take the backup of control file?()Aadding a new user to the databaseBdropping a user from the databaseCdropping a table from the databaseDdropping a data file from a tablespaceEadding a new tablespace to the database
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:多选题You plan to use static database registration for a new listener when you create it. What could be the two reasons for this?()AMore than one database is to be registered with the listener.BThe users will connect the database by using the host naming method.CThe Oracle Enterprise Manager is to be used to monitor an Oracle9i database.DThe database that is to be registered with the listener is configured in shared server mode.EThe listener is not configured on the default port of 1521 and the instance is not configured to register with a nondefault port.
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:多选题You plan to use static database registration for a new listener when you create it.What could be the two reasons for this?()AMore than one database is to be registered with the listener.BThe users will connect the database by using the host naming method.CThe Oracle Enterprise Manager is to be used to monitor an Oracle9i database.DThe database that is to be registered with the listener is configured in shared server mode.EThe listener is not configured on the default port of 1521 and the instance is not configured to register with a nondefault port.
问题:多选题You work as a database administrator for Certkiller .com. You have set the retention period for Automatic Repository (AWR) statistics to four days and collection interval to 15 minutes. You want to view the statistics collected and stored in AWR snapshot. Which two methods would you use to view the AWR statistics?()Ause enterprise managerBuse DBMS_SQL packageCuse DBMS_AWR packageDuse PRVT_WORKLOAD packageEquery the AWR snapshot repository objectsFuse DBMS_WORKLOAD_REPOSITORY package
问题:单选题You have created a baseline metric, DISK_IO_BL, for the disk I/O metrics in your PROD database and you have been getting notifications whenever the database performance degrades. You optimize the database I/O to gain the performance and you decide to remove the baseline metrics. Which method would you use to remove the DISK_IO_BL baseline metrics?()A The baseline, once created, cannot be removed.B Disable the baseline metrics in the Database Control Manage Metrics page.C The baseline will be automatically removed once the database performance has been optimized.D Drop the baseline metrics by usingDBMS_WORKLOAD_REPOSITORY.DROP_BASELINE procedure.
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:单选题The HR user creates a view with this command: SQL> CREATE VIEW emp_v AS SELECT * FROM scott.emp; Now HR wants to grant the SELECT privilege on the EMP_V view to the JIM user. Which statement is true in this scenario?()A HR can grant the privilege to JIM but without GRANT OPTION.B HR can grant the privilege to JIM because HR is the owner of the view.C SCOTT has to grant the SELECT privilege on the EMP table to JIM before this operation.D HR needs the SELECT privilege on the EMP table with GRANT OPTION from SCOTT for this operation.
问题:单选题Your database is functional with peak load for one hour. You want to preserve the performance statistics collected during this period so that they can be used for comparison while analyzing the performance of the database in the future. What action would you take to achieve this task?()A Set the STATISTICS_LEVEL initialization parameter to ALL.B Create a baseline on a pair of snapshots that have the statistics of the peakload period in the database.C Decrease the snapshot interval in the AWR to collect more number of snapshots during the peakload period.D Set the snapshot retention period in the Automatic Workload Repository (AWR) to zero to avoid theautomatic purging of the snapshots.