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Exam 11: Databases

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Question 1

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In a network database,nodes may have a many-to-many relationship.

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Question 2

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Each entry in a(n) ________ database has one parent node,with the parent node having several child nodes.

A) relational
B) object-oriented
C) multidimensional
D) hierarchical

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Question 3

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

Access to these databases is offered to the public or selected outside individuals,for a fee.

The combined information presented on this type of database can be used to change the whole merchandising strategy of a store.

Information collected by an organization from a variety of external and internal databases is stored in this special type of database.

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

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

This commercial database offers news and information on legal,public records,and business issues.

Data consists of only numbers,letters,and symbols.

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

These types of databases are also called information utilities or data banks.

Analysis tools that support viewing all or selected parts of data,querying the database,and generating reports include query-by-example as well as a specialized programming language called ________.

In the ________ database,data elements are stored in different tables,each of which consists of rows and columns.

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

What are the advantages of having databases?

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 ________.

The data ________ or schema contains a description of the structure of data in the database.

A(n) ________ database,sometimes called a data cube,allows data to be viewed as a cube having three or more sides and consists of cells.

In order to create,modify,and gain access to a database,special software,called the database management system,is required.