The random error in a regression equation

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  A .  open the database with the RESTRICTED option B .  open the database with the RESETLOGS option C .  recover to the required SCN only that data file in which the error occurred D .  recover all the data files to the same system change number （SCN）

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• While creating a scheduler window using the DBMS_SCHEDULER package， a user logged in as DBMGR gets the error message insufficient privileges.  Which two commands would you use to resolve this error？（）

  A . GRANT dba TO dbmgr; B . GRANT connect TO dbmgr; C . GRANT resource TO dbmgr; D . GRANT hs_admin_role TO dbmgr; E . GRANT manage scheduler TO dbmgr;

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• You started a long transaction. Before committing， you executed a query on one of the tables currently being modified. You received the following error： ORA-01555： snapshot too old How would you prevent such an error in the future？（）

  A . guarantee undo retention B . add one more redo log group C . size the redo log files appropriately D . size the UNDO tablespace appropriately E . size the SYSTEM tablespace appropriately F . configure an appropriate undo retention interval G . change automatic undo management to manual

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  A . guarantee undo retention B . add one more redo log group C . size the redo log files appropriately D . size the UNDO tablespace appropriately E . size the SYSTEM tablespace appropriately F . configure an appropriate undo retention interval G . change automatic undo management to manual

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• The car will be guided by a differential GPS system that corrects errors arising in global positioning satellite signals（）they travel through the ionosphere and troposphere.

  A . as B . that C . what D . where

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• While creating a scheduler window using the DBMS_SCHEDULER package， a user logged in as DBMGR gets the error message insufficient privileges？ Which two commands would you use to resolve this error？（）

  A .  GRANT dba TO dbmgr； B .  GRANT connect TO dbmgr； C .  GRANT resource TO dbmgr； D .  GRANT hs_admin_role TO dmbgr； E .  GRANT manage scheduler TO dbmgr；

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• A System p administrator has an application that has the data in volume group appvg.  Which of the following commands will back up the contents of appvg to the tape in /dev/rmt0 and check for any read errors （）

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• The error in the measurement of the altitude of a celestial body，caused by refraction，increases as the（）.

  A . horizontal parallax decreases B . observer's height above sea level increases C . humidity of the atmosphere decreases D . altitude of the body decrease

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• You work as a database administrator for Certkiller .com. You received the following error while working on your database： ORA-01555： snapshot too old  In which situation would you receive such an error？（）

  A . You performed rollback after commit. B . If a log switch occurs in your database. C . Thearchiverfails to generate an archived log file. D . Instance recovery fails to find one of the redo log files. E . A long-running query is unable to get read-consistent image. F . If you perform manual undo management operations in auto mode.

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• Using splitvg to create a snapshot volume group of rootvg results in an error.  What is the most likely cause of the error（）

  A . There is not an available disk to allocate to the snapshot volume group B . One of the physical volumes associated with rootvg has a status of "missing" C . Rootvg is running in enhanced concurrent mode D . A snapshot volume group cannot be created for the rootvg

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• Given a JSP error page， which implicit object refers to the uncaught Throwable that resulted in th epage being invoked？（）

  A .  Error B .  Exception C .  Throwable D .  Request error E .  Request exceptio

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• The car will be guided by a differential GPS system that corrects errors（）in global positioning satellite signals.

  A . arising B . rise C . raise D . arouse

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• A SQL Azure database generates an error when a row is inserted into any table in the database.  No error is generated when a row is deleted.  You need to recommend an approach for locating the source of the errors.  What should you recommend？（）  

  A .  Use a Dynamic Management View to check for locks. B .  Use a Dynamic Management View to check for blocked queries. C .  Use a Dynamic Management View to check for long-running queries. D .  Use a Dynamic Management View to check the size and maximum size of the database.

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• “There were so many errors in the performance that the result was not a tragedy, but a comedy.” This sentence is emphatic because of the negative-positive structure.

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• A bag contains 6red marbles, 5yellow marbles, and 7green marbles. How many additional red marblesmust be added to the 18marbles already in the bag sothat the probability of randomly drawing a red marble is 3/5？

  A.12 B.16 C.18 D.24 E.36

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• In the title “Amoxicillin for acute rhinosinusitis: A randomized controlled trial,” the subtitle emphasizes the ________ of the research.

  A．purpose B．type C．method D．/

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• This time I was so （） that not a single error in the essay slipped past me.

  A．clear B．conscious C．alert D．critical

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• 8、精密度是与“真值”之间的一致程度，是系统误差与随机误差的综合。 Precision is the degree of consistency with "true value", and is the synthesis of systematic error and random error.

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