Chapter 1 Database Systems

Question 1

Which of the following refers to the situation where different versions of the same data are stored at different places because they weren’t

Answer 1

Chapter 1

Question 2

Data warehouse contains historical data obtained from the ___.

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

Answer 2

Chapter 1

Question 3

___ is the result of revealing the meaning of raw facts.

A. End-user data
B. An encoded sample
C. Information
D. An encrypted bit

Answer 3

: Information

Chapter 1

Question 4

Data is said to be verifiable if:

A. the data is obtained from trusted sources.
B. the data cannot be changed or manipulated.
C. the data is stored in different places within the database.
D. the data always yields consistent results.

Answer 4

: the data always yields consistent results.

Chapter 1

Question 5

A(n) ___ database is used by an organization and supports many users across many departments.

A. workgroup
B. enterprise
C. transactional
D. desktop

Answer 5

: enterprise

Chapter 1

Question 6

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

True or False?

Answer 6

: False

Chapter 1

Question 7

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.

True or False?

Answer 7

: False

Chapter 1

Question 8

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

A. data management
B. Knowledge
C. understanding
D. good decision making

Answer 8

: good decision making

Chapter 1