Exam 11: Data and Database Administration

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What factors should one consider when choosing an open source DBMS?

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Which of the following characteristics is required of a data administration manager?

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A trigger can be used for security purposes to prohibit inappropriate actions,such as changing a salary value outside of a business day.

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An audit trail of transactions and database changes is kept by a ________.

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Two-phase locking results in a growing phase where locks are acquired and a shrinking phase where locks are released.

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Examination and modification of the SQL code in an application may lead to performance improvements.

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What are some of the core roles of a database administrator?

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A database management system needs to provide only three basic facilities for backup and recovery of a database: backup facilities,journalizing facilities,and a recovery manager.

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The ________ occurs when one user reads data that have been partially updated by another user.

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________ locks allow other transactions to read but not update a record or other resource.

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An optimistic approach to concurrency control is called:

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A typical cause of database destruction is a disk crash.

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An organization should have one data warehouse administrator for every:

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A ________ measures or detects personal characteristics such as fingerprints.

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The repository information model defines types,which should be easy to extend.

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________ is a technical function responsible for database design,security,and disaster recovery.

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Security measures for dynamic Web pages are different from static HTML pages because:

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Versioning takes the pessimistic approach to locking.

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A(n)________ is submitted by a DBA to test the current performance of a database or predict the response time for queries.

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A DBMS periodically suspends all processing and synchronizes its files and journals through the use of a:

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