Deck 1: Database Systems

Question 1

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

Answer 1

True

Question 2

Data and information are essentially the same thing.

Answer 2

False

Question 3

An operational database is sometimes referred to as an enterprise database.

Answer 3

False

Question 4

One disadvantage of the DBMS is that it increases the risk of data security breaches.

Question 5

Data constitute the building blocks of information.

Question 6

A data warehouse can store data derived from many sources.

Question 7

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

Question 8

Information implies familiarity,awareness,and understanding knowledge as it applies to an environment.

Question 9

Corporations use only structured data.

Question 10

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

Question 11

The only way to access the data in a database is through the DBMS.

Question 12

Metadata present a more complete picture of the data in the database than the data itself.

Question 13

Initially the files within a computer file system were similar to manual files.

Question 14

Data processing can be as simple as organizing data to reveal patterns.

Question 15

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.

Question 16

We are now said to be entering the "knowledge age."

Question 17

Historically,a manual file system was composed of a system of file folders and filing cabinets.

Question 18

The same data might be simultaneously structured and unstructured depending on the intended processing.

Question 19

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

Question 20

A query language is a procedural language.

Question 21

The response of the DBMS to a query is the ____.

A) ad hoc query
B) ad hoc response
C) query result set
D) integrated view of the data

Question 22

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

A) Data
B) Information
C) Knowledge
D) A database

Question 23

____ provide(s)a description of the data characteristics and the set of relationships that link the data found within the database.

A) Queries
B) End-user data
C) Metadata
D) Information

Question 24

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

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

Question 25

A ____ database supports data distributed across several different sites.

A) single-user
B) multiuser
C) centralized
D) distributed

Question 26

Most decision-support data are based on historical data obtained from ____.

A) operational databases
B) data warehouses
C) enterprise databases
D) workgroup databases

Question 27

End-user data is ____.

A) raw facts about the end-user
B) raw facts of interest to the end-user
C) data about data
D) accurate, relevant and timely information

Question 28

A workgroup database is a(n)____ database.

A) single-user
B) multiuser
C) enterprise
D) distributed

Question 29

A(n)____ database supports a relatively small number of users (usually fewer than 50)or a specific department within an organization.

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

Question 30

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

A) data management
B) good decision making
C) knowledge
D) understanding

Question 31

____ exists when different versions of the same data appear in different places.

A) Data inconsistency
B) Data consistency
C) Better data integration
D) Improved decision making

Question 32

A(n)____ database is designed to support a company's day-to-day operations.

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

Question 33

The ____ serve(s)as the intermediary between the user and the database.

A) DBMS
B) metadata
C) end-user data
D) programming language

Question 34

____ is used to reveal the meaning of data.

A) Raw facts
B) Knowledge
C) Formatting
D) Information

Question 35

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

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

Question 36

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

A) file
B) collection of files
C) set of key/value pairs
D) collection of queries

Question 37

A(n)____ might be written by a programmer or it might be created through a DBMS utility program.

A) query
B) operating system
C) database management system
D) application program

Question 38

____ data exist in a format that does not lend itself to processing that yields information.

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

Question 39

The ____ structure is quite different from that of an operational or transactional database.

A) data warehouse
B) workgroup database
C) enterprise database
D) distributed database

Question 40

A desktop database is a ____ database.

A) single-user
B) multiuser
C) workgroup
D) distributed

Question 41

In early computer file systems,a(n)___________________________________ was hired to create a computer-based system that would track data and produce required reports.

Question 42

A ____ is a collection of related records.

A) database
B) field
C) column
D) file

Question 43

A ____ is a character or group of characters that has a specific meaning.

A) database
B) field
C) record
D) file

Question 44

____________________ databases focus primarily on storing data used to generate information required to make tactical or strategic decisions.

Question 45

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

Question 46

____ relates to the activities that make the database perform more efficiently in terms of storage and access speed.

A) Performance tuning
B) Database design
C) Query access
D) Database management

Question 47

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

Question 48

XML data is ____.

A) structured
B) multistructured
C) unstructured
D) semistructured

Question 49

____________________ is data about data through which the end-user data are integrated and managed.

Question 50

To reveal meaning,information requires ____________________.

Question 51

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

Question 52

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

A) database management system
B) database management
C) management system
D) database system

Question 53

Most data you encounter is best classified as ____.

A) structured
B) semistructured
C) unstructured
D) historical

Question 54

The organization of the data within the folders in a manual file system was determined by ____.

A) the date of creation
B) its expected use
C) the title of the documents in the folder
D) the data processing specialist

Question 55

A(n)___________________________________ is a collection of programs that manages the database structure and controls access to the data stored in the database.

Question 56

A ____ is a logically connected set of one or more fields that describes a person,place,or thing.

A) database
B) column
C) record
D) file

Question 57

____ data are the result of formatting to facilitate storage,use and generation of information.

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

Question 58

Data ____________________ is a discipline that focuses on proper generation,storage and retrieval of data.

Question 59

A(n)____________________ is a specific request issued to the DBMS for data manipulation.

Question 60

Which of the following is an example of structured data?

A) A Web page
B) An e-mail
C) A memo
D) A spreadsheet

Question 61

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

Question 62

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

Question 63

Describe the five types of users identified in a database system.

Question 64

A(n)____________________ develops when all required changes in the redundant data are not made successfully.

Question 65

Discuss some considerations when designing a database.

Question 66

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

Question 67

Describe what metadata are and what value they provide to the database system.

Question 68

What are some reasons for studying file systems?

Question 69

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

Question 70

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