CSIT 154 Midterm

A data warehouse can store data derived from many sources. T or F

True

Data constitute the building blocks of information. T or F

True

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

True

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

XML

The ____ model uses the term connectivity to label the relationship[ types. a. entity relationship b.n etwork c. object-oriented d. relational

a. entity relationship

Which of the following is true of spreadsheet applications? a. They are a better alternative to databases. b. They enhance the user's ability to understand the data. c. They do not allow manipulation of data once entered. d. They provide enhanced security and robust data sharing features

b. They enhance the user's ability to understand the data.

In the _____ model, the user perceives the database as a collection of record in 1:M relationships, where each record can have more than one parent. a. object-oriented b. network c. hierarchical d. entity relashionship

b. network

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

formatted