You notice a performance change in your production Oracle 12c database. You want to know which change caused this performance difference. Which method or feature should you use?（）

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• You install Windows 2000 Professional on a new APM compliant computer. You notice problems whenever you attempt to shut down the computer or enter or resume from a standby or a hibernate mode. What tool can you use to determine APM problems？ （）

  A . Setup32.exe/apm  B . The power options in control panel  C . System event log D . Apmstat -v command  E . Apmbios/show_all command  F . Display Propertie

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• You want to perform an RMAN backup of database as a copy. Which two factors will you consider while performing the backup operation?（）

  A . The backup as copy can only be taken to disk B . The backup as copy can only be taken to tape C . Backup can be performed only when the instance is shutdown D . Backup will constitute all used and unused blocks in the database

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• You need to turn on Tracing for a page that is not performing well. You must store the trace information in a database for reporting and trending. Which two actions should you perform?（）

  A . Add a TraceContextEventHandler to the Trace.TraceFinished event to add the trace records into the database. B . Add a system.diagnostics section to the Web.config file. Then add a listener to the new section. C . Use the System.Diagnostics.Trace object to connect to a database. Then insert the trace records. D . In the Page_Load for the page, place the Trace.Write call into a SQL INSERT statement.

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• You notice that the performance of the database has degraded because of frequent checkpoints. Which two actions resolve the issue（）

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  A .  all the datafiles in the database B .  the datafiles associated with the SYSTEM tablespace C .  the datafiles associated with the DATA1 tablespace D .  all the datafiles in the database except those associated with the DATA1 tablespace

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• You notice that the performance of the database has degraded because of frequent checkpoints.  Which twoactions resolve the issue（）

  A . Disable automatic checkpoint tuning. B . Check the size of the redo log file size and increase the size if it is small. C . Set the FAST_START_MTTR_TARGET parameter as per the advice given by the MTTR Advisor. D . Decrease the number of redo log members if there are more than one redo log members available in eachredo log group.

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• You are performing a database recovery because a user’s schema is dropped. While performing the recovery， you use the UNTIL SEQUENCE clause. Which type of database recovery are you performing？（）

  A .  user managed complete recovery B .  user managed incomplete recovery C .  RMAN-based complete recovery D .  RMAN-based incomplete recovery

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• You notice that your RMAN script used to copy the datafiles， control files， and archived redo log files is performing very slowly. Which two changes might you want to include in your RMAN script to speed up the COPY commands？（）

  A . NOCHECKSUM B . MAXCORRUPT C . CHECK LOGICAL D . BACKUP INCREMENTAL E . CONFIGURE DEVICE TYPE ... PARALLELISM

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• After completing an installation of new software， a system administrator notices the system is slow.  To troubleshoot the performance， which single AIX command could be used to provide a real-time display of CPU， memory and disk utilization（）

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• You are designing a password management solution to meet the business and technical requirements.  Which two actions should you perform？hich two actions should you perform？（）

  A .  Delegate the password management controls to the help desk staff. B .  Delegate the password management controls to the Domain Users group. C .  Configure the Default Domain Policy to enforce password expiration settings. D .  Configure the Default Domain Controller Policy to enforce password expiration settings.

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• You noticed that large memory allocations for the Oracle backup and restore operations are causing a performance overhead on the shared pool. Which memory structure would you configure to avoid this performance overhead？（）

  A .  recycle buffer cache B .  large pool C .  streams pool D .  keep buffer cache E .  redo log buffer

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• In which scenario will you perform a cancel-based recovery？（）

  A .  when a tablespace is dropped and you have only RMAN-based backup of the database B .  when a table is dropped and stored in the Recycle Bin C .  when you are required to recover an existing table to its previous state D .  when a tablespace is dropped and you have only a user-managed full backup of the database

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• You want to perform an RMAN backup of database as a copy. Which two factors will you consider while performing the backup operation？（）

  A .  The backup as copy can only be taken to disk B .  The backup as copy can only be taken to tape C .  Backup can be performed only when the instance is shutdown D .  Backup will constitute all used and unused blocks in the database

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• You are using Recovery Manager (RMAN) to perform backups. In which three situations would you perform a compressed backup?（）

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• You run a Windows Defender scan on your computer.  You notice a valid program listed in Quarantined Items.  You need to use this program on your computer.  What should you do？（）

  A . Reinstall the application to another location. B . Restore the program from the Quarantined Items list. C . Remove the program from the Quarantined Items list. D . Repair the program from the Programs option in Control Panel.

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• You create a Web application. You need to turn on Tracing for a page that is not performing well. You must store the trace information in a database for reporting and trending. Which two actions should you perform? （）

  A . Add a TraceContextEventHandler to the Trace.TraceFinished event to add the trace records into the database. B . Add a system.diagnostics section to the Web.config file. Then add a listener to the new section. C . Use the System.Diagnostics.Trace object to connect to a database. Then insert the trace records. D . In the Page_Load for the page, place the Trace.Write call into a SQL INSERT statement.

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• A user named Tom reports that applications on his Windows 2000 Professional computer are running slowly. You notice that Tom’s computer has 64 MB of RAM and 100 MB free disk space. Which method can you use to improve performance？（）

  A . Add Tom to the Power Users group. B . Set the total paging file to 75 percent of physical memory. C . Perform a disk analysis， and use the disk defragmenter， if recommended. D . Use disk cleanup to delete temporary files and unnecessary program files. E . Ensure that the performance options setting is optimized for background services.

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• A user named Tom reports that an application on his Windows 2000 Professional computer is running slowly. You notice Tom’s computer has 64 MB of RAM and 100 MB of free disk space. What should you do to improve the performance of his system？ （）

  A . Add Tom to the Power user group. B . Set the total paging file to 75 % of physical memory. C . Perform a disk analysis and use the disk defragmenter if recommended. D . Use Disk cleanup to delete temporary files and unnecessary program files. E . Ensure that the Performance Options windows is optimized for background services.

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• You notice that a job in a chain has not completed on a nonconstrained RAC database. Which of these are valid reasons why that might occur？（）  

  A .  The job priority is 1 and the resource consumer group CPU emphasis allocation is a low percentage. B .  The job affinity is to a service and one node in that service is unavailable. C .  The job affinity is to an instance and that instance is unavailable. D .  There is no service affinity. E .  None of the above.

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• A: Did you notice him come in? B: No. I ____ _ a football game.

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