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Exam 11: Databases

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Question 31

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The most basic logical element of data is a(n) _____.

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Question 32

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The logical view of data focuses on meanings and content of the data.

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Question 33

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If Mr.Smith's bike has been sent to his new address, but the bill to his old one, it can most likely be attributed to a lack of data:

Users of a(n) _____ database have access through their microcomputers linked to local or wide area networks.

In a(n) _____ database, any action on one element immediately affects the elements related to it.

Object-oriented databases organize data using objects, classes, entities, attributes, and _____.

Querying the database and generating reports is assisted by the application generation subsystem.

The database in which data elements are organized using classes, objects, attributes, and methods is called the object-oriented database.

The analysis tools associated with the _____ subsystem include query-by-example and structured query languages (SQL).

How does a relational database differ from a hierarchical database?

This occurs when data is processed at the same time the transaction occurs.

The ATM works on the principle of real-time processing.

In this database model, the fields or records are structured in nodes.

A data field that represents a description or characteristic of some entity.

A commercial database is generally an enormous database that an organization develops to cover particular subjects.

A network database utilizes these special connections between nodes that allow multiple connections between records.

A hierarchical database uses many-to-many relationships.

In an object-oriented database, attributes are specific instances of a class that can contain both data and instructions to manipulate the data.

If all the data in a database is not physically located in one place, it would be a(n) _____ database.

Individual databases are the foundation of management information systems.