What is the impact hypothesis？

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• In your database，the STATISTICS_LEVEL initialization parameter is set to BASIC. What is the impact of this setting？（）

  A . The optimizer statistics are collected automatically. B . Only the timed operating system （OS） statistics and plan execution statistics are collected. C . The Oracle server dynamically generates the necessary statistics on tables as part of query optimization. D . The snapshots for the Automatic Workload Repository （AWR） are not generated automatically.  E . Snapshots cannot be collected manually by using DBMS_WORKLOAD_REPOSITORY PACKAGE.

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• Your MPLS implementation is currently using internal backdoor links. What can you do to minimize the impact of having these links？（）

  A .  use BGP as the CE-PE routing protocol B .  use OSPF as the CE-PE routing protocol C .  use EIGRP as the CE-PE routing protocol D .  use the SP to redistribute routes as external routes for OSPF and EIGRP E .  use route redistribution at each location to ensure external routes are imported into the IGP

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• There is more than one way to set the server to detect and affect long running operations automatically. What is the best choice of you want to reduce the impact of long running operations on other users without aborting the long running operations？（）

  A . Define user profiles and set the CPU_PER_CALL limit.  B . Define a SWITCH_TIME for a plan in the Resource Manager.  C . Create a batch job that checks V$SESSION_LONGOPS；the batch job alters the session priority of the long running operations.  D . Create a user defined event in the Oracle Enterprise Manager， which monitors V$SESSION_LONGOPS.

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• You execute the following command to enable a session in resumable mode：  SQL> ALTER SESSION ENABLE RESUMABLE TIMEOUT 60；  What is the impact of a timeout on the statements being suspended？（）

  A .  The statements remain suspended for at least 60 seconds. B .  The statements are suspended for 60 seconds and then they are executed. C .  The suspended statements error out if the problem is not rectified within 60 seconds. D .  The statements are automatically suspended 60 seconds after an error is received， and then attempt to execute normally again.

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• When a business suffers a security breach， there can be serious ramifications. What is one of the immediate impacts that the business can suffer because of a security breach？（）

  A .  loss of retail sales B .  loss of customer faith C .  disruption of business operations D .  inability to deliver products or service

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• Your archive-log destination directory runs out of space. What is the impact of this on the database?（）

  A . None. The database will switch over to the stand-by archive-log destination directory.  B . A warning message will be written to the alert log of the database, but no adverse impacts to the database will be experienced.  C . The database will shut down, and will not restart until you correct the out-of-space situation.  D . The database will continue to try to write to the archive-log destination directory for one hour. After one hour, the database will shut down normally.  E . Once Oracle has cycled through all online redo logs, it will stop processing any DML or DDL until the out-of-space condition is corrected.

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• The size of the largest datafile， data1.dbf， in your database is 30MB. You issued the following command：   RMAN>CONFIGURE MAXSETSIZE 10MB；     What will be the impact of the above setting？（）

  A .  While performing the backup of the datafile，data1.dbf，one backup set is created. B .  While performing the backup of the datafile，data1.dbf，two backup sets are created. C .  While performing the backup of the datafile，data1.dbf，three backup sets are created. D .  While performing the backup of the datafile，data1.dbf，the command for performing a backup of the datafile，data1.dbf，will fail.

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• You issued the following command at the UNIX environment：   % setenv ORA_SDTZ ’OZ_TZ’   What will be the impact of issuing the above command？（）  

  A .  The operating system local time zone will be set for a user session using the operating system environment variable. B .  The database local time zone will be set for a user session using the operating system environment variable. C .  The operating system local time zone will be set for the database using the operating system environment D .  The database local time zone will be set for the database using the operating system environment variable.

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• You are maintaining an OLTP database in Oracle10g. You set the value of the LOG_ARCHIVE_TRACE parameter to zero. What is the impact of this setting？ （） 

  A .  The trace files will be disabled only for a specific session. B .  Tracing will be disabled for a client identifier. C .  Tracing will be disabled only for the ARCn process. D .  The SQL Trace facility will be disabled for the instance.

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• Evaluate the following command: SQL>ALTER SYSTEM SET db_securefile = 'IGNORE'; What is the impact of this setting on the usage of SecureFiles?（）

  A . It forces BasicFiles to be created even if the SECUREFILE option is specified to create the LOB B . It forces SecureFiles to be created even if the BASICFILE option is specified to create the LOB C . It does not allow the creation of SecureFiles and generates an error if the SECUREFILE option is specified to create the LOB D . It ignores the SECUREFILE option only if a Manual Segment Space Management tablespace is used and creates a BasicFile

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• Your archive-log destination directory runs out of space. What is the impact of this on the database？（）  

  A .  None. The database will switch over to the stand-by archive-log destination directory. B .  A warning message will be written to the alert log of the database，but no adverse impacts to the database will be experienced. C .  The database will shut down，and will not restart until you correct the out-of-space situation. D .  The database will continue to try to write to the archive-log destination directory for one hour. After one hour，the database will shut down normally. E .  Once Oracle has cycled through all online redo logs，it will stop processing any DML or DDL until the out-of-space condition is corrected.

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• William is creating a job class. William specifies the LOGGING_FULL setting for the LOGGING_LEVEL attribute at the time of job class creation. What is the impact of using this setting？（）  

  A .  Detailed information regarding the first run of each job in the class will be written in the job log， and every operation performed on the job class will be logged. B .  Detailed information regarding each run of only the first job in the class will be written in the job log， and every operation performed on the job class will be logged. C .  Detailed information regarding each run of each job in the class will be written in the job log， and every operation  performed on the job class will be logged. D .  Detailed information regarding each run of each job in the class will be written in the job log， but operations performed on the job class will not be logged.

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• Evaluate the following command：   SQL>ALTER SYSTEM SET db_securefile = ’IGNORE’；   What is the impact of this setting on the usage of SecureFiles？（）

  A .  It forces BasicFiles to be created even if the SECUREFILE option is specified to create the LOB B .  It forces SecureFiles to be created even if the BASICFILE option is specified to create the LOB C .  It does not allow the creation of SecureFiles and generates an error if the SECUREFILE option is specified to create the LOB D .  It ignores the SECUREFILE option only if a Manual Segment Space Management tablespace is used and creates a BasicFile

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• You issued the following RMAN command：  RMAN> CONFIGURE CONTROLFILE AUTOBACKUP ON；     What is NOT an impact of using the above command？（）

  A .  When a successful backup is recorded in the RMAN repository， then a backup of the current control file is performed. B .  When a structural change is made to the database， then a backup of the current control file is performed. C .  When a successful backup is performed in the RMAN repository， then a backup of the spfile is performed. D .  When a structural change is made to the database， then a backup of the alert log file will be performed.

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• In your database， the STATISTICS_LEVEL initialization parameter is set to BASIC.  What is the impact of this setting？（）

  A . The optimizer statistics are collected automatically. B . Only the timed operating system （OS） statistics and plan execution statistics are collected. C . The Oracle server dynamically generates the necessary statistics on tables as part of query optimization. D . The snapshots for the Automatic Workload Repository （AWR） are not generated automatically.  E . Snapshots cannot be collected manually by using DBMS_WORKLOAD_REPOSITORY PACKAGE.

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• When a business suffers a security breach， there are be serious ramifications. What is one of the immediate impacts that the business can suffer because of a security breach？（）

  A .  loss of retail sales B .  loss of customer faith C .  disruption of business operations D .  inability to deliver products or service

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• You execute the following command to enable a session in resumable mode： SQL> ALTER SESSION ENABLE RESUMABLE TIMEOUT 60; What is the impact of a timeout on the statements being suspended？（）

  A . The statements remain suspended for at least 60 seconds. B . The statements are suspended for 60 seconds and then they are executed. C . The suspended statements error out if the problem is not rectified within 60 seconds. D . The statements are automatically suspended 60 seconds after an error is received， and then attempt to execute normally again.

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• What is the impact of the following backup if it exceeds the duration allowance？（） Backup as compressed backupset duration 2：00 partial minimize load database ；  

  A .  The entire backup will fail.It will not be usable for recovery. B .  The entire backup will failbut any datafile successfully backed up will be usable for recovery. C .  If this backup fails，subsequent backups will prioritize datafiles not backed up. D .  If this backup fails，an error will be raised and any other commands will not be executed.  E .  If this backup fails，no error will be raised and any other commands will be executed.

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• You execute the following command to enable a session in resumable mode：  SQL> ALTER SESSION ENABLE RESUMABLE TIMEOUT 60；  What is the impact of a timeout on the statements being suspended？（） 

  A . The statements remain suspended for at least 60 seconds. B . The statements are suspended for 60 seconds and then they are executed. C . The suspended statements error out if the problem is not rectified within 60 seconds. D . The statements are automatically suspended 60 seconds after an error is received， and then attempt toexecute normally again.

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• In your database instance， the STATISTICS_LEVEL initialization parameter is set to BASIC.  What isthe impact of this setting（）

  A . Optimizer statistics are collected automatically. B . Only timed operating system （OS） statistics and plan execution statistics are collected. C . The snapshots for the Automatic Workload Repository （AWR） are not generated automatically. D . Snapshots cannot be collected manually by using the DBMS_WORKLOAD_REPOSITORY package. E . The Oracle server dynamically generates the necessary statistics on tables as part of query optimization.

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• According to the lecture, what is the impact of World War I upon the outbreak of World War II 21 years later? __________.

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• The energy that can impact the human body is limited to the plant kingdom.

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• Which of the following diagrams is most useful in impact analysis:

  A arrow diagrams B precedence diagrams C decision trees D Pareto diagrams E cause and effects diagrams

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• Jeanne is the administrator of a very large e-commerce site.She notices that the site still contains many hypertext links to pages that were deleted from the site.What can Jeanne do to minimize customer impact of this oversight？()

  A.Restrict access to pages that have broken links B.Design a custom 404 error message page with a hyperlink that sends users back to the site C.Set HTTP so it never redirects to error pages D.Design a Multipurpose Internet Mail Extensions (MIME) type to solve the problem

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