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Exam 5: Database Management Systems

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Question 41

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The database management system,containing data related to all an organization's applications,supports normal data processing needs and enhances the organization's management activities by providing data useful to managers.

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Question 42

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Analyzing collected historical data with multidimensional analytic tools and exploratory techniques is called ______________________________.

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Question 43

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The principal difference between an executive information system (EIS) and a decision support system (DSS) is that an EIS:

A scanner is used to access a database and to produce inquiry reports.

A(n) ____ reflects a system's key entities and the relationship among them.

The ______________________________ is the way data is actually stored on computer hardware.

A DBMS is a set of integrated computer programs designed to simplify the tasks of creating,accessing,and managing a centralized database.

The approach to business event processing in which facts are stored in a relational database is:

The feature of a database management system that enables nontechnical users to access a database and to produce inquiry reports is the:

A spreadsheet is a typical component of a decision support system.

A description of a portion of a schema is referred to as a(n)______________________________.

A check digit is a code that includes an extra digit to a code in order to check the accuracy with which the code is keyed into a computer.

A(n)______________________________ is a code that includes an extra digit that can be used to verify the accuracy of the code.

In a(n)______________________________ database model,records are organized in a pyramid structure.

Which of the following advantages of the centralized database approach does not occur because of a reduction in data redundancy?

In a(n)______________________________ database model,a child record may have more than one parent.

Knowledge management is the process of capturing,storing,retrieving,and distributing the knowledge of the individuals in an organization for use by others in the organization to improve the quantity and/or efficiency of decision making.

Decoupling the data from the system applications is called ______________________________.

The use of information systems facilities to focus on the collection,organization,integration,and long-term storage of entity-wide data is known as:

A table is in first normal form (1NF)if it has no partial dependencies;that is,no non-key attribute is dependent on only a portion of the primary key.