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Exam 1: Database Systems

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Question 21

Multiple Choice

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A data warehouse contains historical data obtained from the _____.

A) operational databases
B) desktop database
C) enterprise databases
D) workgroup databases

E) B) and C)
F) All of the above

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verified

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Question 22

Multiple Choice

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_____ data exist in the format in which they were collected.

A) Structured
B) Semistructured
C) Unstructured
D) Historical

E) A) and C)
F) B) and C)

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Question 23

Multiple Choice

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_____ is the body of information and facts about a specific subject.

Database programming languages receive all application requests and translate them into the complex operations required to fulfill those requests.

A data warehouse can store data derived from many sources.

_____ exists when different and conflicting versions of the same data appear in different places.

_____ provide a description of the data characteristics and the set of relationships that link the data found within the database.

What are the advantages of having the DBMS between the end user's applications and the database?

Structure is based on the type of processing to be performed on the data.

Data is said to be verifiable if:

A desktop database is a _____ database.

An advantage of database systems is that you needn't perform frequent updates and apply latest patches.

Raw data must be properly _____ for storage, processing and presentation.

_____ is the result of processing raw data to reveal its meaning.

One advantage of a database system over previous data management approaches is that the database system is considerably less complex.

_____ is a special language used to represent and manipulate data elements in a textual format.

A workgroup database is a(n) _____ database.

The term _____ refers to an organization of components that define and regulate the collection, storage, management and use of data within a database environment.

To reveal meaning, information requires _____.

When a database storesthe majority of data in RAM rather than in hard disks, itis referred to as a(n) _____ database.