Exam 1: Database Systems

Metadata describe the data characteristics and the set of relationships that links the data found within the database.

_____ exists when the same data are stored unnecessarily at different places.

The term _____ refers to scattered locations storing the same basic data.

An XML database supports the storage and management of _____ XML data.

Web and mobile technologies that enable "anywhere, anytime, always on" human interactions are forms of _____.

_____ exists when it is possible to make changes in the data storage characteristics without affecting an application program's ability to access data.

One disadvantage of a database system over previous data management approaches is increased costs.

Discuss any three functions performed by the DBMS that guarantee the integrity and consistency of the data in the database.

Most data that can be encountered are best classified as _____.

Corporations use only structured data.

_____ is defined as the condition in which all of the data in the database are consistent with the real-world events and conditions.

The response of the DBMS to a query is the ___________

_____ are the result of formatting disorganized data in order to facilitate storage, use and generation of information.

Discuss some considerations when designing a database.

The database structure in a DBMS is stored as a _____.

Structural dependence exists when it is possible to make changes in the file structure without affecting the application program's ability to access the data.

The DBMS reveals much of the database's internal complexity to the application programs and users.

End-user data is _____.

When data are entered into a form and saved, they are placed in the underlying database as knowledge.

Accurate, relevant, and timely information is the key to ____.