You perform differential incremental level 1 backups of your database on each working day and level 0 backup on Sundays， to tape.  Which two statements are true about differential incremental backups（）

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• You are analyzing the performance of a SQL Azure database.   You need to recommend an approach for identifying the indexes that should be added to improve database performance.  What should you recommend？（）

  A .  Use SQL Server Profiler to identify missing indexes. B .  Use the Database Engine Tuning Advisor to identify missing indexes. C .  Use a Dynamic Management View to analyze query plans. D .  Use a DynamicManagement View to ascertain the number of pending I/O requests.

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• You are performing an incomplete recovery because certain important tables were deleted and purged from the Recycle Bin. In which mode will you perform the recovery？（）

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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?（）

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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?（）

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• You are tuning RMAN to optimize performance.You want tape I/O to be asynchronous when you perform tape backups. Which action should you take?（）

  A . Set the BACKUP_TAPE_IO_SLAVES parameter to FALSE B . Set the BACKUP_TAPE_IO_SLAVES parameter to TRUE C . Use compression when performing tape backups D . Configure multiple SBT channel

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• You find today’s performance of your production database to be the best ever. Therefore， you want to be notified in the future whenever the performance degrades by 10% of today’s performance. What is the first step that you would take to ensure this？（）

  A . create baseline metrics for today’s performance B . write the current database metrics to a database table and create a trigger to compare with future database statistics C . write the current database metrics to a flat file and create an operating script to compare with future database statistics D . write the current database metrics to a database table and create a procedure to compare with future database statistics E . write the current database metrics to a database table and submit a job using DBMS_JOB to compare with future database statistic

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• You installed Oracle Database 11g and are performing a manual upgrade of the Oracle9i database. As a part of the upgrade process，you execute the following script：   SQL>@utlu111i.sql   Which statement about the execution of this script is true？（）

  A .  It must be executed from the Oracle Database 11g environment. B .  It must be executed only after the SYSAUX tablespace has been created. C .  It must be executed from the environment of the database that is being upgraded. D .  It must be executed only after AUTOEXTEND is set to ON for all existing tablespaces. E .  It must be executed from both the Oracle Database 11g and Oracle Database 9i environments.

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• You are tuning RMAN to optimize performance. You want tape I/O to be asynchronous when you perform tape backups. Which action should you take？（）

  A .  Set the BACKUP_TAPE_IO_SLAVES parameter to FALSE B .  Set the BACKUP_TAPE_IO_SLAVES parameter to TRUE C .  Use compression when performing tape backups D .  Configure multiple SBT channel

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• 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?（）

  A . Compare Period ADDM report B . AWR Compare Period report C . Active Session History (ASH) report D . Taking a new snapshot and comparing it with a preserved snapshot

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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 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 installed Oracle Database 11g and are performing a manual upgrade of the Oracle9i database. As a part of the upgrade process, you execute the following script: SQL>@utlu111i.sql Which statement about the execution of this script is true?（）

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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?（）

  A . You are backing up to tape and your tape device performs its own compression. B . You are making image copies, and you have not enabled tablespace compression. C . You are using disk-based backups and disk space in your Flash Recovery Area, or other disk-based backup destinations are limited. D . You are performing your backups to some device over a network where reduced network bandwidth is more important than CPU usage. E . You are using some archival backup media, such as CD or DVD, where reducing backup sizes saves media costs and archival storage.

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• You plan to control the sessions performing a huge number of I/O operations. Your requirement is to kill the session when it exceeds a specified number of I/Os. Which statement describes a solution to the above?（）

  A . Set a threshold for the default system-defined moving window baseline. B . Add directives to the Automatic Database Diagnostic Monitor (ADDM). C . Modify the profile for the targeted users for which control needs to be imposed. D . Implement the database resource manager to add the SWITCH_IO_REQS and SWITCH_GROUP directives.

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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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• You perform differential incremental level 1 backups of your database on each working day and level 0 backupon Sundays， to tape. Which two statements are true about differential incremental backups（）

  A . The backup performed on Sundays contains all the blocks that have ever been used in the database. B . The backup performed on Sundays contains all the blocks that have changed since the last level 1 backup. C . The backup performed on each working day contains all the blocks that have changed since the last level 0 backup. D . The backup performed on Monday contains all the blocks that have changed since the level 0 backup， and every other working day contains all the blocks that have changed since the level 1 backu

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• When navigating using DGPS（Differential Global Positioning System）you may expect your position to be accurate to within a radius of（）.

  A . 10 meters B . 20 meters C . 50 meters D . 100 meter

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• When you turn on the fast time constant (differentiator) control of a radar it will（）.

  A . enhance weak target echoes and brighten them on the PPI B . reduce clutter over the entire PPI by shortening the echoes C . only suppress weak targets to a limited distance from the ship (sea clutter) D . reduce the beam width to provide a map-like presentation for navigatio

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• You are developing an application that will perform mathematical calculations.You need to ensure that the application is able to perform multiple calculations simultaneously. What should you do？（）

  A . Set the IdealProcessor property of the ProcessThread object. B . Set the ProcessorAffinity property of the ProcessThread object. C . For each calculation， call the QueueUserWorkItem method of the ThreadPool class. D . Set the Process.GetCurrentProcess（）.BasePriority property to High.

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• 听力原文：W: I heard that your boss's going to give you a vacation as a reward for your wonderful performance during this year.

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• 听力原文：Ladies and gentlemen, I'm sorry to announce that tonight's concert will be delayed by an hour due to technical difficulties. The program will now begin at 7 p.m. We encourage you to visit the cafeteria in the basement, and our display of vintage photographs on the first floor. Please be sure to carry your passes with you when you leave the hall. You will need to show them at the entrance when you come back for the performance.

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