Exam 5: Database Management Systems

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For the following diagram, which item is the entity? For the following diagram, which item is the entity?

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Another name for sequential coding is:

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In a(n) ____ database model, data are logically organized into two-dimensional tables.

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

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A(n) ______________________________ is an information system that assists managers with unstructured decisions by retrieving and analyzing data for purposes of identifying and generating useful information.

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Data flows that provide a basis for managerial decisions are called ____ information flows.

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A(n) ______________________________ is a set of integrated programs designed to simplify the tasks of creating, accessing, and managing a database.

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In creating an entity-relationship diagram, the correct sequence of steps is:

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

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The model that logically organizes data into two-dimensional tables is the:

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A data model for a database is often depicted using entity-relationship diagrams.

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The model that only works well for simple data structures is the:

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A(n) ______________________________ is mainly about collecting and presenting information and less about doing additional processing and calculations.

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Which of the following is the most likely coding scheme for college courses?

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A(n) ______________________________ is the attribute whose value is unique for every entity that will appear in the database.

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In an object-oriented database model, what types of objects can be stored through use of abstract data types, inheritance, and encapsulation?

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The centralized database approach to data management concentrates on the process being performed, rather than on the data themselves.

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

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

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A computer's ability to imitate human decision making when confronting situations that are complex and ambiguous is called ______________________________.

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