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Exam 11: Databases

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Question 1

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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 2

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

A) data warehouse
B) commercial database
C) company database
D) company warehouse

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A

Question 3

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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.

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

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

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

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

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

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

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

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 ________.

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 ATM works on the principle of real-time processing.

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

What are the advantages of having databases?

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

Data consists of only numbers,letters,and symbols.

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

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

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