Exam 14: Proactive Maintenance

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Write consistency implies that if one user makes a change without committing or rolling back,then only the user who made the change can see that change.

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If the database buffer cache is too big it could be attempting to share data that is not frequently used.

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With respect to proactive maintenance tasks managed within the Database Control,there is a default configuration within the advisors and metrics provided when you create a database.

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____ is NOT an advisor available within the Advisor Central of the Database Control.

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For a data warehouse the database buffer cache should be as large as possible.

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____ is not a port commonly used by the Database Control.

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Setting the SGA ____________________ configuration parameter to a value greater than zero enables automated SGA memory management.

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32 Mb for a database buffer cache is a little too small.

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The Database Control will not allow the Java pool buffer size to be set to 0.

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____________________ undo allows rollback of transactions,recovery of aborted and partly completed transactions,and some recovery.

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The SGA ____ contains application data.

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The ____________________ the undo tablespace,the larger the physical size of changes that can be undone.

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Few database engines function by making changes physically in the database as soon as the change is made (regardless of the execution of a COMMIT or ROLLBACK command).

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To execute the Database Control there needs to be a background process (a ____ on a Windows computer)running on the database server that executes the Database Control over the network.

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A(n)____________________ is a picture of a database at a specific point in time.

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The ____________________ of a relational database contains all system metadata and application tables,indexes,materialized views,and so on.

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Describe the sections of the segment advisor.

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Preserved snapshots are used in the same manner as snapshots,in that they can be used for comparison against other snapshots.

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The undo advisor will help you with the settings for automated undo configuration parameters,including retention and tablespace sizing.

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A baseline alert warning level (based on significance)of ____ corresponds to a Severe level.

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